116003 Piston Pin .003
Genuine MB/GPW ORD Confirms Piston Pin Override 0.003 in; standard 636961 is not the same measure.
Catalog · tag check
Internet check of remaining parts
Checked 213 different tags that were waiting for documentation or image in the previous review. Replenishment includes re-reading of scanned tables, replacements and remedial measures. The status of the number and the availability of the picture are separate things: a confirmed PN does not mean that its corresponding photo already exists.
Original ORD confirms wartime application. The manufacturer's catalog confirms the specified replacement application. A match in the M38, M38A1, or civilian model catalog does not by itself prove that the part matches the MB.
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Confirmed in original MB/GPW catalog (60)
116019 Piston W/Pin .020
Genuine MB/GPW ORD Confirm Piston with Pin, 0.020 in. Overhang. The number in the scan is correct; the previous OCR misread it.
116020 Piston W/Pin .030
Genuine MB/GPW ORD confirm piston with pin, overhang 0.030 in. The number in the scan is correct; the previous OCR misread it.
116701 Piston W/Pin .040
Genuine MB/GPW ORD confirm piston with pin, overhang 0.040 in. The number in the scan is correct; the previous OCR misread it.
349368 Cylinder Head Stud (As Req)
Brezon cylinder head genuine item and Ford GPW6066.
51575 Output Shaft Cone
Output shaft bearing; ORD 1949 lists WO-51575-V / TIM-14131, older ORD designation 51575.
52877 Inner Pinion Cup
Drive gear inner bearing cup; original illustration of the bridge.
52878 Outer Pinion Cone
Drive gear outer bearing cone; original illustration.
52879 Outer Pinion Cup
Drive gear outer bearing cup; original illustration.
52880 Differential Carrier Cone
Cone with differential bearing rollers, TIM-24780.
Catalog · Differential Carrier Cone · Catalog · Differential Carrier Cone
52881 Differential Carrier Cup
Differential bearing cup, TIM-24721.
Catalog · Differential Carrier Cup · Catalog · Differential Carrier Cup
52940 Kingpin Bearing Cone
Front axle bearing cone. If it is listed in the rear axle group, the category is incorrect.
Catalog · Kingpin Bearing Cone · Catalog · Kingpin Bearing Cone
52941 Kingpin Bearing Cup
Front axle sleeve bearing cup. This is not part of the rear axle.
Catalog · Kingpin Bearing Cup · Catalog · Kingpin Bearing Cup
52942 Front Wheel Outer Bearing Cone
Hub bearing taper marked in original illustration.
Catalog · Axle Shaft Bearing Cone · Catalog · Front Wheel Inner Bearing Cone · Catalog · Front Wheel Outer Bearing Cone
52943 Front Wheel Outer Bearing Cup
Hub bearing cup marked in original illustration.
Catalog · Axle Shaft Bearing Cup · Catalog · Front Wheel Inner Bearing Cup · Catalog · Front Wheel Outer Bearing Cup
634762 Transfer Case Mounting Washer
Transfer case support screw washer.
635883 Battery Ground Strap
Battery mass marked in the original illustration of the electrical installation.
636599 Oil Pump Shaft & Rotor
Shaft with rotor for pump WO-637636; application depends on the installed pump.
636962 Connecting Rod Nut
Nut connecting rod marked in the original illustration.
637425 Oil Pump Driven Gear
Drive gear for listed pump versions WO-637636 and WO-641293.
638979 Dimmer Switch
High/low beam foot switch CL-9654.
639265 Drive Pinion Oil Seal
Drive gear seal labeled in original illustration.
639734 Starting Motor Shaft Bushing
The starter drive end bushing is located in the flywheel housing.
A1064 Tail & Stop Light Left
Left combination rear, stop and dim light, 6V.
A1065 Tail Light Right
Right rear light marked in the vehicle illustration.
A1070 Parking Light Bezel
Door/cover marker lights; the original name is not just a decorative hoop.
A1126 Drain Cock
Engine tappet confirmed in original MB/GPW illustration.
A1147 Wooden front bumper filler
Confirmed MB front bumper wood infill; original ORD lists Willys A1147 / Ford GPW17751.
A1267 Speedometer Tube & Shaft
Flexible speedometer shaft kit with jacket and cable.
A1325 Flexible Tube Connection
Flexible fuel line connection.
A1332 Light Switch
Light Switch Assembly DM-5970.
A1343 Speedometer Tube
Speedometer cable sheath, 52 in. length.
A1344 Speedometer Shaft
Inner speedometer cable; distinguish it from the casing and the complete assembly.
A1363 Headlamp Wire Right
Right headlight cable.
A1395 Generator Support Insulator
Original ORD confirms Willys number; the manufacturer's catalog confirms the part for the engine 4-134.
A1397 Generator Support Bolt
Original ORD confirms Willys number; the manufacturer's catalog confirms the part for the engine 4-134.
A1450 Oil Gauge Tube
Oil pressure gauge line; not the instrument itself.
A147 Transfer Case Support Bolt
Special transfer case support screw.
A1543 Gasket & Oil Seal Set
Original transfer case gasket set, later A7443. ORD lists oil seal kit A7445 separately; do not mix the contents of the sets.
A179 Clutch Control Stud & Bracket
Clutch control bracket/support marked in original illustration.
A500 Spring Pivot Bracket
Leaf spring support bracket.
A6156 Engine Insulator Rear
Rear rubber engine support.
A6292 Bendix Universal Joint Ball
0.875 in Diameter Bendix Joint Ball; adjacent numbers indicate other measurements.
A6749 Oil Pump Repair Kit
The government manual lists Willys A6749 / Ford GPW18379 as the oil pump service kit. Do not confuse it with an individual pump or a set of only its seals.
A6751 Clutch Facing Kit
Clutch plate lining kit; ORD lists the contents of the set, not the complete lamella.
A6791 Steering Connecting Rod Kit
Steering Tie Rod Service Kit.
A6811 Ignition Switch
Keyless ignition switch DM-6282.
A6882 Kingpin Shim Kit
Front axle bushing set; not a rear axle kit.
A6918 Air Cleaner Hose to Filler
Hose between air cleaner pipe and oil filler pipe; description also confirmed by ORD 1945 PDF 62.
A7225 Starting Switch
Starter switch AL-SW4015, in ORD replaced by AL-5934A3 / WO-A17143.
A7445 Oil Seal Kit
Transfer case oil seal kit, separate from paper seal kit.
A7503 Flywheel Assy
Flywheel assembly with ring gear and bolts.
A7830 Front Axle Gasket Kit
Original MB/GPW Catalog Confirms WO-A-7830 / GPW-18365-B. The kit includes front axle seals and sealing elements; not the same content as the modern joint kit for front and rear axle.
A7831 Rear Axle Gasket Set
Rear axle seal kit, listed as replacement for earlier A1545.
A8180 Speedometer Autolite Type Miles
Speedometer listed in original listing; check the manufacturer's performance and scale.
A9093 Battery Bolt & Nut
Replacement mark in the factory battery attachment item.
A9490 Fan Belt
ORD lists A9490 as a replacement after the earlier supply of the belt was exhausted.
A974 Shift Rod Oil Seal
Transfer case selector rod oil seal.
A991 Output Shaft Snap Ring
Output shaft fuse labeled in original illustration.
G142303 Parking Light Bulb
Original part number 142303 for small bulb 6-8V; the prefix G in the local entry is not a Willys factory prefix.
Confirmed fallback application (82)
115996 Piston W/Pin .010
Manufacturer's chart confirms MB piston with 0.010 in. overhang pin. The previous OCR did not recognize the number.
116714 Rear Companion Flange
Confirmed Day 18 rear outlet flange for MB. The earlier general CJ account was not sufficient evidence; the more complete catalog now specifically lists MB.
119042 Carburetor Repair Kit Single
The individual carburetor service kit is specifically listed in the MB row of the manufacturer's chart.
119136 Inlet Guide
Manufacturer's catalog confirms guides for L-head 4-134; intake and exhaust are not the same number.
119137 Exhaust Guide
Manufacturer's catalog confirms guides for L-head 4-134; intake and exhaust are not the same number.
119764 Air Cleaner Element
The air cleaner element is specifically listed in the MB row of the manufacturer's chart.
119952 Oil Filter Element
Explicit MB application in the manufacturer's catalog; check the performance of the pump or the filter housing.
638513 Crankshaft Pulley Nut
Crank pulley nut specifically listed in the MB row of the manufacturer's table.
638629 Engine Insulator Front
Front rubber engine mount specifically listed in the MB row of the manufacturer's table; not to be confused with the later M38 mounts.
639968 Pinion Bearing Spacer
The drive gear bearing spacer is specifically listed in the MB row of the manufacturer's chart.
640145 Radiator Assembly
Explicit MB application in the manufacturer's catalog; replacement number does not confirm wartime factory performance.
640161 Cylinder Head
L-head engine head specifically listed in the MB row of the manufacturer's chart. This is a replacement application, not a proof of war mark casting.
640259 Starter Switch to Starter Cable
The service catalog lists a switch to starter cable, 14 in (approx. 356 mm), with connection A-1454 / 640259 and MB/GPW application. Not the battery cable or ground. Check length and connections.
640672 Hub Rear
Replacement rear hub listed in MB row; check rear axle performance.
Catalog · Hub Left Front · Catalog · Hub Right Front · Catalog · Hub Rear
640761 Ammeter Closed Type
Confirmed replacement closed type ammeter for MB. The manufacturer's application does not confirm the war appearance of the dial and case.
640763 Fuel Gauge Closed Type
Confirmed replacement fuel gauge for MB in manufacturer table. Check the voltage and characteristics of the transmitter for the specific performance.
641143 Engine Front Plate
The manufacturer specifically states the front plate of the MB and early CJ-2A engines with camshaft chain drive. Not an aftermarket gear plate.
641918 Air Cleaner Horn
The catalog specifically mentions the MB/GPW intake port for the L-head engine.
641920 Hub Cap
The manufacturer's catalog specifically states the hub cap for the MB.
644366 Release Bearing Carrier
Confirmed replacement bracket/clutch thrust bearing bushing for cataloged L-head and F-head models; bracket kit with bearing is another number J0945255.
644425 Timing Gear Cover
Confirmed cam chain drive cover for MB. Not gear cover 643834.
645623 Crankshaft Pulley Single
The catalog specifically states a single groove pulley for the MB; this is a wildcard.
646084 Steering Gear Bearing Kit
The manufacturer's catalog lists the MB application in the steering mechanism; check the installed Ross assembly and the contents of the service kit.
647468 Crankshaft Front Oil Seal
Front crankshaft seal specifically listed in the MB row of the manufacturer's table. Not to be confused with later version cover and gasket 931634.
647844 Carburetor Assy Single
The manufacturer's chart specifically lists the individual carburetor assembly 647844 in the MB row. When choosing a service set, check the marking and performance of the carburetor itself.
648024 Air Cleaner Hose to Cleaner
The flexible intake hose is specifically listed in the MB row of the manufacturer's chart.
648061 Differential Shim Kit
Dana 25 differential bearing washer kit confirmed, including MB. Service Tag J0648061; the contents and thicknesses of the set are not the same as one original coaster.
Catalog · Differential Shim Kit · Catalog · Differential Shim Kit
649228 Pinion Shim Kit
Confirmed Dana 25 Drive Gear Bearing Washer Kit for MB, Service Tag J0649228.
649712 Ignition Coil 6 Volt
Manufacturer's catalog lists replacement coil for Willys/Jeep 1941-1962 with 6V installation. Not for waterproof 24V M38 system.
649769 Front Axle Shaft Thrust Washer
Confirmed front axle thrust washer in MB row. The factory M38 catalog additionally identifies Spicer S1622 / WO-649769.
663636 Windshield Wiper Motor
Vacuum wiper motor is listed as a replacement application for the MB. That's not proof that every wartime MB had that engine; installation requires a suitable vacuum supply and associated lever.
673436 Hood Catch Bracket
The black enamel hood latch bracket is specifically listed in the MB row of the manufacturer's chart.
700034 Stoplight Switch
Confirmed replacement brake light switch in MB row. The connections and the design of the switch are different for the later civilian parts.
800093 Crankshaft Rear Oil Seal
Rear crankshaft seal later service tag, J0800093. A more complete manufacturer's catalog includes it for the MB L-head; two halves are required. Distinguish it from the original war version and check the bearing.
800205 Temperature Gauge Closed Type
Confirmed Replacement Thermocouple/Capillary Thermometer in MB line. Do not replace it with an electrical instrument that requires a separate transmitter.
800208 Oil Pressure Gauge Closed Type
Confirmed Replacement Mechanical Oil Pressure Gauge for MB. The later closed version and the position of the hand may not correspond to the original wartime instrument.
800527 Brake Pedal
The current manufacturer specifically includes MB/GPW in the application of this replacement pedal arm. Do not confuse the arm with the complete original foot A1359.
800896 Front Axle To Tube Brake Hose
The manufacturer's catalog specifically states the application for MB. Check lengths and connections according to the installed system.
800952 Rear Brake Hose
The manufacturer's catalog specifically states the application for MB. Check lengths and connections according to the installed system.
800953 Front Wheel Brake Hose
The manufacturer's catalog specifically states the application for MB. Check lengths and connections according to the installed system.
801042 Transfer Case Insulator Snubber
Confirmed lower rubber transfer case support for L-head models from the catalog. Service Tag J0801042; not the same part as the upper support 926671.
801367 Drive Pinion Nut
Confirmed replacement drive pinion nut for Dana 25, including MB; new service tag is J0801367.
801422 Steering Column Bearing
The manufacturer's catalog lists the MB application in the steering mechanism; check the installed Ross assembly and the contents of the service kit.
801723 Sector Shaft Oil Seal
Identified replacement sector shaft seal. The manufacturer's subreference takes 801723 to National 340413, and another manufacturer's table the same 340413 to 927645, which is specifically listed for MB. Check the Ross housing seat dimensions.
802636 Fan Assembly
The fan is specifically listed in the MB row of the manufacturer's table. This confirms a replacement application, not necessarily the marking on the original war fan.
804769 Oil Pump
Explicit MB application in the manufacturer's catalog; check the performance of the pump or the filter housing.
804772 Valve Tappet Inlet Std
Replacement valve lifter: Manufacturer's table lists it for both intake and exhaust of MB L-head engines.
Catalog · Valve Tappet Exhaust Std · Catalog · Valve Tappet Inlet Std
805017 Clutch Pressure Plate Auburn
Pressure plate Auburn version. The factory catalog identifies the part/assembly for 906467, whose replacement MB application has been confirmed. Valid for that built-in Auburn performance; not a universal replacement for Rockford parts.
805123 Steering Sector Shaft Kit
The manufacturer's catalog lists the MB application in the steering mechanism; check the installed Ross assembly and the contents of the service kit.
805150 Axle Shaft Outer Grease Retainer
Front hub oil seal listed in the MB row of the manufacturer's chart.
Catalog · Front Hub Oil Seal · Catalog · Axle Shaft Outer Grease Retainer
805197 Pressure Return Spring Clip Auburn
Pressure plate return clip, Auburn. The factory catalog identifies the part/assembly for 906467, whose replacement MB application has been confirmed. Valid for that built-in Auburn performance; not a universal replacement for Rockford parts.
807266 Inner Pinion Cone
Confirmed Replacement Inner Cone Drive Gear Bearing Dan 25 Manufacturer specifically includes MB; use a suitable cup and check the bearing.
807767 Output Shaft
Confirmed replacement transfer case rear output shaft Day 18, including MB. Service Tag J0807767.
807892 Output Clutch Shaft
Confirmed Day 18 transfer case front output shaft for covered models, including MB. Adjacent gears have several designs and are not determined by this number alone.
808129 Water Pump Shaft & Bearing
Manufacturer listed replacement water pump bearing for Willys/Jeep 1941-1971 with 134 engine. Application depends on pump design installed.
809480 Muffler Assembly
Confirmed oval muffler for MB/GPW; do not equate with a round earlier performance.
810391 Radiator Cap
Explicit MB application in the manufacturer's catalog; replacement number does not confirm wartime factory performance.
812050 Thermostat Standard
Confirmed standard replacement thermostat. Various manufacturers' catalogs list 160 °F and 170 °F respectively for this reference; check the temperature on the actual product. The hotter 180°F version is 905594.
905594 High Temperature Thermostat
Replacement thermostat 180 °F (approx. 82 °C), MB specific application. This is a warmer performance than the 812050.
906467 Clutch Pressure Assy Auburn
Manufacturer Confirms 8.5in Replacement Thrust Plate for 1941-1971 Ford/Willys/Jeep. This does not confirm that the mark 906467 is an original war number.
906468 Clutch Pressure Spring Auburn
Auburn clutch compression spring, silver tag. The factory catalog identifies the part/assembly for 906467, whose replacement MB application has been confirmed. Valid for that built-in Auburn performance; not a universal replacement for Rockford parts.
906725 Distributor Autolite Single Carburetor
Manufacturer's chart for MB lists original A1244 and replacement 906725. It's a later 6/12V distributor; The original and replacement assembly do not have to use the same caps and rotors.
908615 Clutch Pressure Repair Kit Auburn
Auburn clutch repair kit 906467. The factory catalog identifies the part/assembly for 906467, which replacement MB application is confirmed. Valid for that built-in Auburn performance; not a universal replacement for Rockford parts.
910901 Kingpin Bearing Cap
Front axle bearing cover. The more complete catalog explicitly excludes MB from the top position, but includes it for the bottom position. Do not apply it to the rear axle.
Catalog · Kingpin Bearing Cap · Catalog · Kingpin Bearing Cap
911842 Headlamp Seal Beam 6 Volt
Catalog lists MB, sealed-beam headlight 6 V; check the housing and electrical installation.
914946 Shift Lever Ball
Confirmed replacement transfer case lever ball Dana 18 and transmission T84 for MB. Service Tag J0914946.
917181 Clutch Pressure Assy Rockford
The manufacturer's chart specifically lists this pressure plate assembly for the MB. The factory FC catalog confirms that it is a Rockford 8.5in, without a slat. Auburn and Rockford internals are not automatically interchangeable.
920535 Tie Rod End Right Rod Left End
The manufacturer's records specifically include the MB for this replacement link end. Check the position and direction of the threads for the specific joint; don't infer them just from the left/right label.
Catalog · Tie Rod End Left Rod Left End · Catalog · Tie Rod End Right Rod Left End
921317 Tie Rod End Right Rod Right End
The manufacturer's records specifically include the MB for this replacement link end. Check the position and direction of the threads for the specific joint.
Catalog · Tie Rod End Left Rod Right End · Catalog · Tie Rod End Right Rod Right End
921476 Impeller & Seal Kit
Manufacturer's chart specifically includes MB for replacement impeller and seal kit. The factory number in another model is not in itself proof of application; check the proper performance of the pump housing.
923896 Output Shaft Oil Seal
Confirmed Day 18 front or rear exit seal type sealed for covered models, including MB. The open type has a separate designation J8123077.
925395 Front & Rear Axle Bumper
Manufacturer replacement records link 925395 to A481 / J0945577 and specifically mention MB. This is a rubber bridge bumper, not a front or rear sheet metal bumper.
926544 Internal Differential Gear Kit
Confirmed Service Kit Standard Differential Internal Gears Dana 25/27. The manufacturer's chart specifically states MB.
Catalog · Differential Repair Kit · Catalog · Internal Differential Gear Kit
926596 Horn Assembly Single
The manufacturer's chart lists a replacement single horn for the MB. This is not evidence of an original war trumpet performance; check that the specific product corresponds to the voltage of the installation.
926671 Transfer Case Insulator
Confirmed transfer case upper rubber support for L-head models from the catalog. Service Tag J0926671; kit 926671K includes both the lower support and the attachment.
A6742 Horn Button Service Kit
Confirmed Siren Button Service Kit for MB. A later kit of the same type is listed by the manufacturer as A6742K; check the contents of the set upon purchase.
A6760 Steering Gear Shim Kit
The manufacturer's catalog lists the MB application in the steering mechanism; check the installed Ross assembly and the contents of the service kit.
A6839 Water Pump Repair Kit
The manufacturer specifically states a water pump service kit for MB and civilian models with the 134 engine. Check the contents of the kit according to the installed pump.
A7835 Manifold Gasket Set
L-head gasket kit 4-134 confirmed. The image of one seal does not represent the contents of the complete set.
A837 Tie Rod Clamp
Confirmed link clamp kit in steering assembly that includes MB. Service Tag JA000837.
G107381 Connecting Rod Lock Nut
The manufacturer's table specifically states 107381 for the MB securing nut connecting rod; later CJ uses another number 107823. Do not change this entry automatically to a number for a later connecting rod.
G453593 Shift Rod Poppet Ball
Confirmed Selector Rod Locking Ball Dana 18, Mfg # 453593. The G prefix in the local entry is not a Willys factory prefix.
Not for original MB/GPW L-head (7)
649666 Rocker Shaft Spring
4-134 (CJ-3B/CJ-5/CJ-6/M38A1) engine F-head valve mechanism part. The wartime MB/GPW with the L-head engine does not have this assembly.
802295 Rocker Shaft Bracket
4-134 (CJ-3B/CJ-5/CJ-6/M38A1) engine F-head valve mechanism part. The wartime MB/GPW with the L-head engine does not have this assembly.
804622 Inlet Valve Push Rod
4-134 (CJ-3B/CJ-5/CJ-6/M38A1) engine F-head valve mechanism part. The wartime MB/GPW with the L-head engine does not have this assembly.
805368 Rocker Arm Shaft
4-134 (CJ-3B/CJ-5/CJ-6/M38A1) engine F-head valve mechanism part. The wartime MB/GPW with the L-head engine does not have this assembly.
805375 Rocker Arm Left
4-134 (CJ-3B/CJ-5/CJ-6/M38A1) engine F-head valve mechanism part. The wartime MB/GPW with the L-head engine does not have this assembly.
805376 Rocker Arm Right
4-134 (CJ-3B/CJ-5/CJ-6/M38A1) engine F-head valve mechanism part. The wartime MB/GPW with the L-head engine does not have this assembly.
805402 Rocker Arm Shaft & Bracket Kit
4-134 (CJ-3B/CJ-5/CJ-6/M38A1) engine F-head valve mechanism part. The wartime MB/GPW with the L-head engine does not have this assembly.
Another version — not a direct replacement (10)
636344 Rear Axle Shaft Nut
Conical, semi-floating rear axle nut. Not part of the original full floating MB/GPW half shaft with flange bolts; placement in the steering group is also wrong.
636374 Rear Axle Shaft Key
Conical, semi-floating rear axle wedge. Not part of the original full floating MB/GPW half shaft with flange bolts; placement in the steering group is also wrong.
640800 Rim and Disc
The manufacturer's catalog distinguishes the civilian rim 640800 from the divisible MB version 640800-MB. These tags are not the same factory configuration.
642280 Engine Rear Plate
Original ORD differentiates the A5121 back plate for the cam chain drive from the 642280B for the gear drive. The manufacturer's table lists a replacement 642280 for the MB, but the version should be selected according to the actual engine installed; a number without a suffix is not sufficient.
645367 Air Cleaner Assy
Air cleaner assembly for civil CJ-2A/CJ-3A. The manufacturer's data sheet for the MB lists A5621, not 645367; check mounts, connections and shape before replacement.
649873 Hub & Drum Left Rear
The factory M38 catalog identifies this number as the FRONT hub and drum assembly (left side). The local description of the rear hub is wrong. Do not equate it to the rear hub of the original MB bridge.
Catalog · Hub & Drum Left Front · Catalog · Hub & Drum Left Rear
649874 Hub & Drum Right Rear
The factory M38 catalog identifies this number as the FRONT hub and drum assembly (right side). The local description of the rear hub is wrong. Do not equate it to the rear hub of the original MB bridge.
Catalog · Hub & Drum Right Front · Catalog · Hub & Drum Right Rear
801925 Ring Gear & Pinion Kit
Number confirmed for gear pair Dana 25, 4.88:1 gear (39/8). Standard MB/GPW uses 5.38:1; direct replacement is not confirmed. The front and rear axle must have a matched ratio.
Catalog · Ring Gear & Pinion Kit · Catalog · Ring Gear & Pinion Kit
914047 Steering Wheel
More complete manufacturer catalog link 914047 for civilian CJ models with horn button 1¼ in. For the MB it lists a separate Sheller performance 7375336. The civilian steering wheel should not be shown as the original wartime MB steering wheel.
G142449 Tail & Stop Lamp Bulb
The factory CJ-5 catalog lists GM-142449: Twin Filament Bulb 6-8V, 21/3 CP, Type S8, Mazda 1158 for Combination Tail/Stop Light. The prefix G in the old table is not the full factory prefix. It is not a confirmation of application in the original military MB blackout light.
Number found — MB application not confirmed (0)
Not confirmed enough (4)
804051 Engine Assy W/All Access.
The number is associated with post-war replacement engines, but a clear enough factory specification of the complete assembly and accessories has not been found. It is not labeled as a confirmed original MB engine based on a photo or forum alone.
Not enough source to confirm.
Catalog · Engine Assy W/All Access. · Catalog · Engine Assy W/All Access.
805432 Steering Half Oil Seal Assy
Exact seal half number not confirmed. Numbers of the same form in other manufacturers' catalogs are not proof of Jeep application. An original drawing or a legible mark on the part is required; kit 915664 should not automatically be used as an alias for half.
Not enough source to confirm.
908758 Block & Bearings
Appears as a number on post-war L-head castings, but this does not confirm that the "block and bearings" description covers the same service assembly. Cast number and kit number should not be automatically equated.
Not enough source to confirm.
913396 Front Axle Assy
The exact marking of the complete front axle has not been confirmed. To select a complete bridge, the housing model, transmission ratio, width and type of joints are required; the similarity of the name with a part of another Jeep model is not enough.
Not enough source to confirm.
Identity confirmed - check application (26)
117367 Clutch Pressure Spring Rockford
Pressure spring for Rockford clutch 648539, factory catalog CJ-2A/CJ-3A. Identity is verified; application does not automatically apply to any MB clutch or later assembly 917181.
117483 Clutch Pressure Plate Rockford
Thrust plate for Rockford clutch 648539, factory catalog CJ-2A/CJ-3A. Identity is verified; application does not automatically apply to any MB clutch or later assembly 917181.
117484 Clutch Release Lever Rockford
Release lever kit with associated parts for Rockford clutch 648539, factory catalog CJ-2A/CJ-3A. Identity is verified; application does not automatically apply to any MB clutch or later assembly 917181.
639949 Front Brake Cylinder Spring
The original M38A1 catalog confirms the front brake cylinder piston spring WO-639949 / LO-FC3024B. The number has been identified; the appropriate diameter and design of the MB cylinder must be checked separately.
640532 Pintle Hook Kit
Factory CJ-3B catalog confirms mounting kit with hook A-593, reinforcement A-552, spacers and fasteners. The A-593 hook itself also exists on the MB; this does not mean that every element of a civilian assembly kit is the same as a war kit.
Documented comparison parts — not automatic aliases:
- A593 · Original hook, individual part of the kit; not the whole 640532.
640587 Spark Plug Cable Kit
The factory CJ-2A/CJ-3A catalog confirms the spark plug wire and coil assembly. Check the lengths, caps and connections of the built-in distributor; a civilian kit is not automatically identical to a wartime MB installation.
Documented comparison parts — not automatic aliases:
- 930457 · The manufacturer's catalog lists the MB cable kit; check lengths and connections.
641251 Steering Column Bearing
The factory CJ catalog identifies 641251 as a pillar assembly with a bearing, not just a pillar bearing. For the MB upper bearing, the manufacturer's table states 801422. Do not assign the image of the individual bearing to the entire assembly 641251.
Documented comparison parts — not automatic aliases:
- 801422 · Upper pillar bearing for MB; not the entire column 641251.
642776 Emergency Brake Assembly
M38 catalog confirms internal parking brake kit WO-642776 (Bendix BX-48534, Spicer 6935X). Not an early MB outer brake band kit. For MB with an internal brake, check the mount, control and performance before replacing.
647711 Engine Assy Short Block
The number is listed in the factory CJ-2A/CJ-3A engine assembly catalog. The post-war replacement block requires a check of performance, equipment and point of acceptance; the shared L-head family alone does not prove complete MB interchangeability.
Catalog · Engine Assy Short Block · Catalog · Engine Assy Short Block
649844 Water Pump Assy
Factory FC catalog confirms water pump for FC-150 after engine number 4J-162950. It is not an endorsement of a universal MB replacement; before that the catalog lists 649717.
800611 Front Left Bendix Axle Shaft
The factory service manual confirms the left Bendix driveshaft for the CJ-2A/CJ-3A in the modified driveshaft design note. MB application and adjustment of the axial clearance should be checked according to the actual installed joint and bridge.
800612 Front Right Bendix Axle Shaft
The factory service manual confirms the right Bendix half shaft for the CJ-2A/CJ-3A. It is paired with the left 800611; don't just choose based on the appearance of the joint.
801049 Water Pump Seal
M38 documentation confirms pump shaft seal. For the original MB pump, compare the shape, seat and accompanying sealing washer; confirmation of a number in the M38 catalog is not in itself proof of universal interchangeability.
801330 Shift Lever Under Drive 3 Speed
Factory M38 Catalog Confirms: Field Direct/Transfer Lever. When replacing the MB handle, check the length, shape, support position and gap in the floor opening; the mark itself does not confirm the original wartime performance.
801331 Shift Lever Front Drive 3 Speed
Factory M38 catalog confirms: front drive engagement lever. When replacing the MB handle, check the length, shape, support position and gap in the floor opening; the mark itself does not confirm the original wartime performance.
804333 Crankshaft Bearing Front .002
Factory certified front main crankshaft bearing remedial 0.002 in below standard, for FC-150 4-134. Belongs to family 645160/645161/645162; the choice for MB depends on the measured crankshaft and bearing performance.
804334 Crankshaft Bearing Center .002
Factory certified crankshaft center main bearing remedial 0.002 in below standard, for FC-150 4-134. Belongs to family 645160/645161/645162; the choice for MB depends on the measured crankshaft and bearing design.
804335 Crankshaft Bearing Rear .002
Factory Confirmed Rear Crankshaft Main Bearing Remedial 0.002 in Substandard, for FC-150 4-134. Belongs to family 645160/645161/645162; the choice for MB depends on the measured crankshaft and bearing performance.
809045 Piston Ring Set Normal Std
The original military catalog confirms the chrome link set for normal oil consumption, size standard. Application in a later engine is not proof of the same profile of all war pistons. Before installation, check the diameter of the cylinder and the width of the grooves.
Documented comparison parts — not automatic aliases:
- 941885 · Separately documented modern MB/L-head service kit of the same nominal size; check the link profile.
809047 Piston Ring Set Normal .020
Original Military Catalog Confirms Chrome Normal Oil Consumption Link Kit, Gauge 0.020 in. Application in a later engine is not proof of the same profile of all war pistons. Before installation, check the diameter of the cylinder and the width of the grooves.
Documented comparison parts — not automatic aliases:
- 941887 · Separately documented modern MB/L-head service kit of the same nominal size; check the link profile.
809048 Piston Ring Set Normal .030
Original Military Catalog Confirms Chrome Link Kit for Normal Oil Consumption, Gauge 0.030 in. Application in a later engine is not proof of the same profile of all war pistons. Before installation, check the diameter of the cylinder and the width of the grooves.
Documented comparison parts — not automatic aliases:
- 941888 · Separately documented modern MB/L-head service kit of the same nominal size; check the link profile.
809049 Piston Ring Set Normal .040
Original Military Catalog Confirms Chrome Normal Oil Consumption Link Kit, Gauge 0.040 in. Application in a later engine is not proof of the same profile of all war pistons. Before installation, check the diameter of the cylinder and the width of the grooves.
Documented comparison parts — not automatic aliases:
- 941889 · Separately documented modern MB/L-head service kit of the same nominal size; check the link profile.
918014 Block & Bearings W/Pistons
The factory industrial catalog identifies the L4 block assembly with bearings and pistons already installed. It is a post-war service specification; not proof of identity with all wartime MB blocks.
919703 Valve Tappet Inlet .004
Factory catalog confirms bolt-on lifter, 0.004 in overhang: intake and exhaust on L-head, exhaust only on F-head. Installation requires a suitably processed bed; not to be confused with standard lifter 804772.
Willys Industrial Engines · Original Factory Manual and Catalog
Jeep Forward Control Vehicles Parts List FC-150 / FC-170, 1964 · PDF 23
Jeep Forward Control Vehicles Parts List FC-150 / FC-170, 1964 · PDF 23
Catalog · Valve Tappet Exhaust .004 · Catalog · Valve Tappet Inlet .004
A6975 Connecting Rod Bearing .002
Factory certified bearing connecting rod measuring 0.002 in below standard for family 4-134. Not the standard A7233. For application, it is necessary to measure the sleeve and check the thickness and gap.
G272861 Radiator Hose Clamp
Factory Confirmed GM-272861 Radiator Hose Clamp in FC Catalog. The local prefix G is abbreviated to GM. Do not equate this later clip with any original MB bayonet clip.
Documented alternative — alias not validated (10)
645177 Instrument Panel Light
Correct tag 645177 not confirmed by same manufacturer MB order. For the dashboard lamp, the table states 645715. Do not equate these numbers without an additional source.
Documented comparison parts — not automatic aliases:
- 645715 · Manufacturer's documented instrument panel replacement lamp for MB.
646808 Spark Plugs
The mark exists in the factory CJ-5 spark plug index. Exact interchangeability of 646808 and MB service spark plug not confirmed. For MB, the mark 804492 is separately documented; check thread, reach and heat value.
Documented comparison parts — not automatic aliases:
- 804492 · Spark plug specified for MB in the manufacturer's catalog; alias 646808 not determined.
647746 Carburetor Gasket Set Single
The exact contents of this gasket set and its MB application have not been reliably confirmed. The manufacturer's MB chart lists 119042 as a carburetor repair kit; it's a wider kit, not a confirmed alias for the gasket set itself.
Documented comparison parts — not automatic aliases:
- 119042 · MB carburetor repair kit; check Carter WO and set contents.
663548 Hood Catch
There are different descriptions of this mark in the sources: hood side fastener and hood catch by the windshield. That's why the similarity of the number is not enough to choose an image or replacement. The manufacturer's MB chart separately lists 977749 for the hood latch; check position and shape.
Documented comparison parts — not automatic aliases:
- 977749 · Documented MB hood latch in the manufacturer's catalog; alias 663548 not confirmed.
802742 Differential Assembly
Exact number 802742 not confirmed for this assembly. The original MB catalog clearly lists A-788 for the front differential kit (housing, gears and satellites). A-793 is just a case. These are comparative factory markings, not a proven alias of 802742.
Documented comparison parts — not automatic aliases:
- A788 · Original MB front differential kit; separate document number.
- A793 · Differential housing only.
Catalog · Differential Assy · Catalog · Differential Assembly
805433 Steering Full Oil Seal Kit
The complete set number entered was not validated. The manufacturer's MB catalog lists 915664 for the joint seal kit, for one side. Half seal, single side kit and both side kit are not the same product.
Documented comparison parts — not automatic aliases:
- 915664 · MB kit for one side according to this manufacturer's catalog; check the quantity and contents of the current package.
809046 Piston Ring Set Normal .010
The exact tag 809046 is not confirmed by the source table; it is not derived only by numerical sequence. Documented MB/L-head service kit 941886, gauge 0.010 in. Check the piston grooves and the contents of the kit.
Documented comparison parts — not automatic aliases:
- 941886 · Link set 0.010 in; custom alternative confirmed, alias 809046 not confirmed.
A17401 Gasket Set Overhaul
The content and original status of old record A17401 has not been reliably confirmed. For the type of set requested, the manufacturer's MB/L-head catalog specifically lists 810584. It is a documented alternative, not a proven historical intermediate reference.
Documented comparison parts — not automatic aliases:
- 810584 · L-head engine overhaul gasket kit; check the content and performance of the engine.
A17402 Gasket Set Valve Job
The content and original status of old record A17402 has not been reliably confirmed. For the type of set requested, the manufacturer's MB/L-head catalog specifically lists 802030. It is a documented alternative, not a proven historical intermediate reference.
Documented comparison parts — not automatic aliases:
- 802030 · L-head valve/head gasket kit; check the content and performance of the engine.
A84450 Bell Crank Repair Kit
The correct entry of A84450 remains unconfirmed. For the MB 3/4-inch diameter bellcrank shaft kit, the more complete manufacturer's catalog lists J0915762; The A8445 is a 4 in. long shaft only. These are not three identical catalog numbers.
Documented comparison parts — not automatic aliases:
- 915762 · Bellcrank shaft service kit for MB ¾ in; different from the A8445 shaft itself.
Base number and remedial action — check correct PN (14)
63696110 Piston Pin .010
The entry in the old table joins the base 636961 and the specified measurement 0.010 in. The base number does not confirm the remedial measure. The exact factory number for this entire record remains unconfirmed; an illustration may only show a family of works.
6369615 Piston Pin .005
The entry in the old table joins the base 636961 and the specified measurement 0.005 in. The base number does not confirm the remedial measure. The exact factory number for this entire record remains unconfirmed; an illustration may only show a family of works.
63704160 Piston W/Pin .060
The entry in the old table joins the base 637041 and the specified measurement 0.060 in. The base number does not confirm the remedial measure. The exact factory number for this entire record remains unconfirmed; an illustration may only show a family of works.
63704180 Piston W/Pin .080
The entry in the old table joins the base 637041 and the specified measurement 0.080 in. The base number does not confirm the remedial measure. The exact factory number for this entire record remains unconfirmed; an illustration may only show a family of works.
64516040 Crankshaft Bearing Front .040
The old chart says 645160-40: Front Main Bearing, Overhaul 0.040 in. The record stores the base number and measure; a separate factory PN obtained by combining the digits is not confirmed. The picture shows the type and position of the bearing, it does not prove its size.
Documented comparison parts — not automatic aliases:
- A6798-40 · Documented complete MB/L-head set of three main bearings 0.040 in; not one single bearing.
64516060 Crankshaft Bearing Front .060
The old chart says 645160-60: Front Main Bearing, Overhaul 0.060 in. The record stores the base number and measure; a separate factory PN obtained by combining the digits is not confirmed. The picture shows the type and position of the bearing, it does not prove its size.
64516140 Crankshaft Bearing Center .040
The old chart says 645161-40: Intermediate Main Bearing, 0.040 in. Repair Measure. The record stores the base number and measure; a separate factory PN obtained by combining the digits is not confirmed. The picture shows the type and position of the bearing, it does not prove its size.
Documented comparison parts — not automatic aliases:
- A6798-40 · Documented complete MB/L-head set of three main bearings 0.040 in; not one single bearing.
64516160 Crankshaft Bearing Center .060
The old chart says 645161-60: Intermediate Main Bearing, 0.060 in. Repair Measure. The record stores the base number and measure; a separate factory PN obtained by combining the digits is not confirmed. The picture shows the type and position of the bearing, it does not prove its size.
64516240 Crankshaft Bearing Rear .040
The old chart says 645162-40: Rear Main Bearing, Overhaul 0.040 in. The record stores the base number and measure; a separate factory PN obtained by combining the digits is not confirmed. The picture shows the type and position of the bearing, it does not prove its size.
Documented comparison parts — not automatic aliases:
- A6798-40 · Documented complete MB/L-head set of three main bearings 0.040 in; not one single bearing.
64516260 Crankshaft Bearing Rear .060
The old chart says 645162-60: Rear Main Bearing, Overhaul 0.060 in. The record stores the base number and measure; a separate factory PN obtained by combining the digits is not confirmed. The picture shows the type and position of the bearing, it does not prove its size.
80904560 Piston Ring Set Normal .060
The entry in the old table joins the base 809045 and the specified measurement 0.060 in. The base number does not confirm the remedial measure. The exact factory number for this entire record remains unconfirmed; an illustration may only show a family of works.
Documented comparison parts — not automatic aliases:
- 941889.060 · Manufacturer's MB/L-head link kit 0.060 in; check the piston grooves.
80904580 Piston Ring Set Normal .080
The entry in the old table joins the base 809045 and the specified measurement 0.080 in. The base number does not confirm the remedial measure. The exact factory number for this entire record remains unconfirmed; an illustration may only show a family of works.
A723340 Connecting Rod Bearing .040
The entry in the old table joins the A7233 base and the specified measurement of 0.040 in. The base number does not confirm the remedial measure. The exact factory number for this entire record remains unconfirmed; an illustration may only show a family of works.
Documented comparison parts — not automatic aliases:
- A7237 · Manufacturer's MB/L-head bearing connecting rod 0.040 in; it differs from the basic standard PN.
A723360 Connecting Rod Bearing .060
The entry in the old table joins the A7233 base and the specified measurement of 0.060 in. The base number does not confirm the remedial measure. The exact factory number for this entire record remains unconfirmed; an illustration may only show a family of works.
Numbers and source lines remain visible for comparison. The offered comparative part is not a modification of the old PN nor a proof of mutual interchangeability. For the measures, performances and sets in dispute, no replacement has been granted on the basis of a similar name.