OIL SEAL CHAIN COVER
Timing chain cover oil seal
For engines with chain-driven camshaft
High-quality oil seal for the front timing chain cover of the Willys L-134 'Go Devil' engine. This seal seals the crankshaft passage where the front pulley is mounted and prevents oil leakage at the front of the engine.
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Material Neoprene rubber with metal housing |
Function Crankshaft seal at timing chain cover |
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Engine type L-134 with chain-driven camshaft |
OEM reference WO-637098 / GPW6700 |
Features
- High-quality neoprene rubber construction
- Metal housing for durable fit
- Prevents oil leakage at front of engine
- Direct replacement for original part
- Suitable for L-134 engine with chain drive
★ Quality seal with durable neoprene rubber resistant to engine oil and high temperatures.
Application
This oil seal fits Willys L-134 'Go Devil' engines with chain-driven camshaft as used in early Willys MB (1941-1945), Ford GPW (1941-1945), Hotchkiss M201, and early CJ-2A models (1946-early 1947) before the change to gear drive.
Installation notes
Installation is done from the inside into the timing chain cover. First remove the crankshaft pulley and old seal carefully without damaging the cover. Press the new seal in with the lip facing inward. Check before installation that the crankshaft has no sharp edges or grooves that could damage the new seal.
Compatibility
NOTE: This seal is ONLY suitable for engines with chain-driven camshaft. Later CJ-2A (from late 1947), CJ-3A, CJ-3B, M38 and M38A1 have a gear-driven camshaft and use a different timing chain cover with different seal specifications. Check before ordering whether your engine has chain or gear drive.
Historical context
The early L-134 'Go Devil' engines in WWII-production Willys MB and Ford GPW used chain drive for the camshaft. After the war, Willys gradually switched to the more reliable gear drive, making this seal specific to early production vehicles and restorations.
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
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.
ALL_CATEGORIES : Camshaft Gear Willys MB Ford GPW M201, Camshaft Timing Chain Willys MB Ford GPW M201, LOWER ENGINE CJ2A, Sealings&Accessoires CJ3A, Camshaft pinion CJ3A, Sealings&Accessoires M38, LOWER ENGINE M38, Engine complete, Camshaft pinion CJ3B, Sealings&Accessoires CJ3B
This part fits:
| Model | Years |
|---|---|
| Military jeeps | |
| Willys MB (early) | 1941, 1942 |
| Willys MB | 1942, 1943, 1944, 1945 |
| Ford GPW | 1942, 1943, 1944, 1945 |
| Hotchkiss M201 | 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966 |
| Willys M38 | 1950, 1951, 1952 |
| Willys M38A1 | 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971 |
| CJ series | |
| Jeep CJ-2A | 1945, 1946, 1947, 1948, 1949 |
| Jeep CJ-3A | 1949, 1950, 1951, 1952, 1953 |
| Jeep CJ-3B | 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968 |
📐 Diagrams & technical drawings
From the original Technical Manual CJ2A_PL_1949 — Parts List — only for Willys CJ-2A / CJ-3A (1949)
From the original Technical Manual TM 10-1513 — Maintenance Manual — only for Willys MB / Ford GPW (1942)









