Piston Pin Lock Hardware
3/8 x 1 1/8 UNF - SET OF 4
Piston Pin Lock Ring Set
For L-134 and F-134 engine
Essential spring clips for securing the piston pin (wrist pin) in the piston. These lock rings prevent the piston pin from sliding out of the piston during the combustion cycle. Supplied as complete set for one engine overhaul.
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Material Hardened spring steel |
Type C-clip lock ring |
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Application 4-cylinder L-134 and F-134 engines |
Set contents 8 pieces (2 per cylinder) |
Features
- Spring-hardened steel for reliable locking
- Suitable for all four cylinders
- Replaceable during every engine revision
- Precise fit in piston groove
- Critical safety component
★ During engine maintenance, piston pin lock rings must always be replaced with new ones. These clips are subject to fatigue and must never be reused.
Installation notes
Install with the opening at 6 or 12 o'clock position. Ensure the lock ring clicks fully into the groove and sits flat all round. Check before fitting that the piston groove is clean and undamaged. Do not use screwdrivers that may damage the aluminium. Each piston requires 2 lock rings (one either side of the piston pin).
Compatibility
Fits all Willys L-134 and F-134 engines with standard piston pin configuration. Suitable for both connecting rods cylinder 1-3 (WO640071) and cylinder 2-4 (WO640072). Not interchangeable with spiral spring-type lock rings — use only the type for which the piston is machined.
Historical context
The C-clip lock ring was the standard method for piston pin retention on WWII and post-war Willys engines. These simple yet effective spring clips have proved themselves over millions of miles under demanding military and civilian conditions.
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 : Connecting Rods & Hardware Willys MB Ford GPW M201, Piston,Rings & Bearings CJ2A, CONNECTING RODS & HARDWARE CJ3A, Piston,Rings & Bearings M38, CONNECTING RODS & HARDWARE M38, CONNECTING RODS & HARDWARE 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 | 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)
