VALVE EXHAUST ENGINE JEEP MB
WO637183
Exhaust Valve L-134 Go Devil Engine
For 4-cylinder L-head flathead engine
High-quality replacement exhaust valve for the Willys 134ci L-head 'Go Devil' engine. This valve is suitable for vehicles with the flathead sidevalve configuration, where the valves are located in the engine block. 4 exhaust valves are required per engine.
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Application L-134 flathead engine |
Type Exhaust valve |
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Part number WO637183 |
Required per engine 4 pieces |
Features
- For L-134 flathead (sidevalve) engine
- Replacement exhaust valve standard specification
- Suitable for 4-cylinder Go Devil engine
- Compatible with chain-driven and gear-driven versions
- 4 pieces required per engine
★ Replaces original exhaust valves for the iconic Go Devil L-134 flathead engine. Suitable for various applications from 1941 to the early 1950s.
Application
Suitable for vehicles with L-134 flathead engine (1941-1953): Willys MB (1941-1945), M38 (1950-1952), CJ-2A (1945-1949), CJ-3A (1949-1953), DJ-3A (1955-1961), Pick-up Truck (1946-1949), Station Wagon (1946-1949), Jeepster VJ (1948-1949), Sedan Delivery (1948-1949). Also suitable for Hotchkiss M201.
Installation notes
Check valve clearance with cold engine: 0.014" (0.36 mm) for both inlet and exhaust. When replacing valves, valve guides and spring retainers must be inspected. Ensure the camshaft is in the correct position (fully closed valve) during adjustment. Sidevalve construction: access via side cover on engine block.
Compatibility
ONLY for L-134 flathead (L-head, sidevalve) engines. NOT suitable for F-134 overhead valve (F-head Hurricane) engines – these use different valves with different dimensions and retainer configuration. Compatible with both chain-driven (early MB/GPW) and gear-driven (late CJ-2A, CJ-3A, M38) camshaft versions.
Historical context
The Willys L-134 Go Devil engine was developed by chief engineer Barney Roos and became legendary in the Willys MB and Ford GPW during WWII. This robust flathead engine remained the standard powertrain for military and civilian Jeeps until the early 1950s, when it was replaced by the more powerful F-134 Hurricane overhead valve engine.
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 : Upper Engine Valve CJ3A, Camshaft pinion CJ3A, Upper Engine M38, Upper Engine Valve M38, Camshaft pinion CJ3B, Upper Engine Valve CJ3B
This part fits:
| Model | Years |
|---|---|
| Military jeeps | |
| Willys MB | 1942, 1943, 1944, 1945 |
| 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)
