GASKET OIL PUMP GEAR TYPE JEEP

EARLY MBMBEARLY GPWGPWM201M38CJ2ACJ3ACJ3B
Manual available
1,05 €
BTW: 0,18 €
SKU:  WO641482
GTIN (EAN,ISBN): 4.4

WO641482

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War Dept specs from the original Technical Manual — click to open

Oil pump gasket chain drive

For chain-driven engine

Replacement gasket for the oil pump of early Willys L-134 'Go Devil' engines with chain drive. This gasket seals the oil pump to the engine block and prevents oil leakage. Essential component during overhaul or replacement of the oil pump on WWII jeeps.

Application

Oil pump chain drive version

Engine type

L-134 chain drive

Vehicle

Willys MB, Ford GPW, M201

Period

1941-1945 + early CJ-2A

Features

  • Suitable for chain-driven L-134 engine
  • Seal between oil pump and engine block
  • Prevents oil pump oil leakage
  • Replacement part during pump overhaul
  • Compatible with WWII jeeps with chain timing

★ Please note: this gasket is exclusively for the early L-134 engine with chain drive. Later engines use gear drive and have a different oil pump configuration.

Application

This gasket is suitable for Willys MB (1941-1945), Ford GPW (1941-1945), Hotchkiss M201 and very early Willys CJ-2A (up to approximately engine serial number 44417) with chain-driven camshaft. The oil pump on these engines is driven via the camshaft and is mounted against the engine block with this gasket as seal.

Installation notes

Check beforehand whether your engine is a chain-driven or gear-driven version by removing the timing cover. Thoroughly clean the mating surface on the engine block and oil pump. On some engines, the gasket must be cut from gasket material itself — verify that this gasket has the correct shape for your pump. Install the oil pump with correct torque settings according to the technical manual.

Compatibility

DOES NOT FIT later CJ-2A (from approximately engine series 44417), CJ-3A, CJ-3B, M38, M38A1 or other vehicles with gear-driven L-134 or F-134 engine. These have a different type of oil pump and different gaskets. The difference between chain and gear drive is critical — use only the correct gasket for your engine version.

Historical context

The early WWII Willys MB and Ford GPW jeeps were equipped with the L-134 'Go Devil' engine with chain drive for the camshaft. After the war, this system was gradually replaced by a more robust gear system, which means that this type of gasket is characteristic of wartime jeeps.

This description was generated automatically. Unsure about fitment? Contact us at info@willys.be.

⚠ Spotted an error in this description? Report it to info@willys.be

Restoration part — not a ready-to-fit product

This part is intended for the restoration of historic military vehicles. Fitting, aligning, deburring or reworking is part of that work and is inherent to the nature of these goods. Dimensional variation also exists between original vehicles.

Installation requires technical knowledge of the vehicle. Unsure whether this part suits your version? Ask us before purchase at info@willys.be.

COMPATIBLE_MODELS EARLY MB, MB, M201, EARLY GPW, GPW, CJ2A, CJ3A, CJ3B, M38
ALL_CATEGORIES : Oil Pump Drive Chain Willys MB Ford GPW M201, Seals Oil Water engine

This part fits:

ModelYears
Military jeeps
Willys MB (early)1941, 1942
Willys MB1942, 1943, 1944, 1945
Ford GPW (early)1942
Ford GPW1942, 1943, 1944, 1945
Hotchkiss M2011956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966
Willys M381950, 1951, 1952
CJ series
Jeep CJ-2A1945, 1946, 1947, 1948, 1949
Jeep CJ-3A1949, 1950, 1951, 1952, 1953
Jeep CJ-3B1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968

📐 Diagrams & technical drawings

From the original Technical Manual TM 10-1513 — Maintenance Manual — only for Willys MB / Ford GPW (1942)

Engine — Block, Crankshaft, Camshaft, Pistons, Valves
Engine — Block, Crankshaft, Camshaft, Pistons, Valves
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