RINGS SIZE 050 (SET)
Piston rings size 0.050" oversize
Complete set for 4 pistons
Complete piston ring set for engine overhaul with rebored cylinders. These oversize rings compensate for cylinder wear after boring the cylinder block to +0.050 inch (1.27 mm). Essential component for professional engine restoration with optimal compression and minimal oil consumption.
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Oversize dimension 050" (1.27 mm) |
Engine L-134 Go Devil and F-134 Hurricane |
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Set contents Complete set for 4 pistons |
Application Engine rebuild with rebored cylinder block |
Features
- Oversize dimension 0.050" for rebored cylinders
- Complete set for all four pistons
- Suitable for L-head and F-head 134 ci engines
- Compression rings and oil rings included
- Ready for direct fitting after cylinder honing
★ High-quality piston rings for WWII military jeep engine rebuild. Only to be used with cylinder blocks bored exactly 0.050 inch oversize.
Application
Suitable for military jeeps and civilian jeeps with 134 ci (2199 cc) L-head Go Devil engine (MB/GPW/M201/early CJ-2A/M38) and F-head Hurricane engine (late CJ-2A/CJ-3A/CJ-3B/M38A1). Used during engine overhaul when cylinders are bored 0.050" oversize to compensate for wear.
Installation notes
Check ring gap in each cylinder before fitting: place the ring in the cylinder, push it square to halfway with a piston, and measure the opening with feeler gauges. Specification: 0.008-0.013 inch gap. Insufficient gap can lead to ring breakage at operating temperature. Pistons in oversize 0.050" are required when using these rings.
Compatibility
ONLY to be used in combination with cylinders bored exactly 0.050 inch oversize and pistons in the same oversize. Not to be used in standard cylinders or other oversize dimensions (.010,.020,.030,.060). Fits both chain-driven (early MB/GPW) and gear-driven (CJ/M38A1) versions of the 134 ci engine.
Historical context
The Willys L-134 'Go Devil' engine was the beating heart of the WWII jeep and was developed by engineer Barney Roos into a reliable 60 hp power source. Oversize piston rings enabled field overhaul and kept these engines operational for decades.
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 : Piston,Rings & Bearings CJ2A, Rings CJ3A, Piston,Rings & Bearings M38, Rings - M38, Rings 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)
