PINION CRANKSHAFT PINION 28 TEETH
WO641282
Crankshaft timing gear 28 teeth
For L-134 engines with gear drive
Replacement timing gear for the crankshaft of the Willys L-134 'Go Devil' engine with gear drive. This 28-tooth steel gear mounts to the crankshaft and drives the valve timing via the camshaft gear (56 teeth). Essential engine component for correct timing.
|
Material Steel |
Number of teeth 28 |
|
Application L-134 engine with gear drive |
Ratio Works with 56-tooth camshaft gear (2:1) |
Features
- 28 teeth steel construction
- For gear driven camshaft
- Replaces original part 641282
- Essential for correct valve timing
- Mounted to the crankshaft
★ High-quality replacement timing gear for the crankshaft of L-134 engines with gear drive. Precision-manufactured for reliable and correct valve timing.
Application
For late CJ-2A (from approx. 1947 with gear drive), CJ-3A (1949-1953), M38 (1950-1952) and CJ-3B (1953-1964) with L-134 engine. NOT suitable for early MB, GPW, M201 or early CJ-2A with chain driven camshaft.
Installation notes
During installation: timing marks on crankshaft and camshaft gears must be correctly aligned (marks opposite each other). Crankshaft gear is pressed onto the crankshaft with a woodruff key. Check camshaft end play with shims after installation. Set timing to 5° before TDC cylinder 1.
Compatibility
IMPORTANT: There are two different timing systems for the L-134 engine. This gear is ONLY for engines with gear drive. Early MB/GPW (1941-1945) and early CJ-2A (until approx. 1947) had chain drive and use sprocket 638459 instead of this gear. Check which system your engine has before ordering.
Historical context
The Willys L-134 'Go Devil' engine was originally built with chain drive for the WWII MB and GPW. Post-war, Willys switched to a more robust gear drive for civilian models and the M38, improving reliability and ease of maintenance.
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.
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 |
| 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 TM 10-1513 — Maintenance Manual — only for Willys MB / Ford GPW (1942)
