GASKET EX&IN MANIFOLD TO BLOCK
WO638640
Intake and exhaust manifold to block gasket
For L-134 Go Devil engine
Sealing gasket between intake and exhaust manifold and engine block for the Willys L-134 flathead engine. This gasket ensures a flat, gas-tight connection between both manifolds and the side of the engine block.
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Material Heat-resistant gasket material |
Application Manifold to engine block |
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Engine type L-134 Go Devil flathead |
Part no. WO638640 |
Features
- Original specification for L-134 engine
- Heat-resistant material
- Flat seal between manifolds and block
- Essential during exhaust system overhaul
- Prevents exhaust gas leaks
★ Manufactured to original specifications for reliable sealing between manifolds and engine block.
Application
Suitable for vehicles with L-134 flathead engine as mentioned in the product categories: Willys MB (1941-1945), Ford GPW (1941-1945), Hotchkiss M201 (1952-1966), Willys CJ-2A (1945-1949), CJ-3A (1948-1953), CJ-3B (1953-1964) and M38 (1950-1952).
Installation notes
Ensure that the nuts on the bolt connection between manifold and block are tightened first to draw both manifolds evenly against the block, before securing the four 5/16" bolts between intake and exhaust manifold. Do not use spring washers on the nuts at the block, only on the intermediate bolts between the manifolds.
Compatibility
Specific to L-134 flathead engine. Not suitable for F-134 Hurricane engine which has a different manifold construction.
Historical context
The L-134 Go Devil engine powered all Willys MB and Ford GPW jeeps during WWII and remained in service until the early 1950s in civilian CJ models and the military M38.
This description was generated automatically. Unsure about fitment? Contact us at info@willys.be.
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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 : Sealings & Accessories, Sealings&Accessoires CJ2A, EXHAUST COLLECTOR - CJ2A, Sealings&Accessoires CJ3A, EXHAUST COLLECTOR - CJ3A, Sealings&Accessoires M38, EXHAUST COLLECTOR - M38, Sealings&Accessoires CJ3B
This part fits:
| Model | Years |
|---|---|
| Military jeeps | |
| Willys MB (early) | 1941, 1942 |
| Willys MB | 1942, 1943, 1944, 1945 |
| Ford GPW (early) | 1942 |
| Ford GPW | 1942, 1943, 1944, 1945 |
| Hotchkiss M201 (early) | 1956, 1957, 1958, 1959 |
| Hotchkiss M201 | 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966 |
| Willys M38 | 1950, 1951, 1952 |
| CJ series | |
| Jeep CJ-2A | 1945, 1946, 1947, 1948, 1949 |
| Jeep CJ-3A | 1949, 1950, 1951, 1952, 1953 |
📐 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)








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