PISTONS SIZE 020 (SET OF 4)
0.020“ (0,508mm) → 79,883mm (3.144“)
Set of 4 engine pistons dimension 0.020" (Ø=79.88mm), delivered with their pins.
Suitable for Jeep Willys MB, M38, M38A1, CJ2A, CJ3A, CJ3B, CJ5, CJ6, Hotchkiss M201 and Ford GPW
Pistons.020 oversize (set of 4)
For L-134 Go Devil engine
Complete set of four pistons in.020 inch oversize for the Willys L-134 flathead engine. These pistons are used during engine overhaul when cylinders have been bored to.020 oversize. Essential component for a thorough engine rebuild.
|
Oversize 020 inch (0.508 mm) |
Engine type L-134 Go Devil flathead |
|
Set contents 4 pistons |
Application Engine overhaul with bored cylinders |
Features
- Set of 4 pistons.020 inch oversize for bored cylinders
- Suitable for L-134 flathead engine
- Complete with piston rings where applicable
- For engine overhaul and rebuild
★ High-quality overhaul pistons for the iconic L-134 Go Devil engine, manufactured to original specifications for a reliable engine rebuild.
Installation notes
Cylinders must be professionally bored to.020 oversize before fitting these pistons. The machine shop must have the pistons in hand to perform correct boring and honing — piston-to-cylinder clearance is determined using a feeler gauge. Note correct installation orientation: T-slot and connecting rod offset must be correctly orientated relative to the camshaft.
Compatibility
Exclusively for engines where cylinders have been bored to.020 inch oversize. Not interchangeable with standard pistons or other oversizes (.030,.040,.060). The machine shop must measure cylinder bore and determine the correct oversize — never order a size without measurement.
Historical context
The L-134 Go Devil engine powered hundreds of thousands of military jeeps during WWII and the early post-war period. During engine overhauls, oversize pistons were routinely used to return worn cylinders to service.
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 : Piston,Rings & Bearings CJ2A, Pistons And Sleeve CJ3A, Piston,Rings & Bearings M38, Pistons And Sleeve - M38, Pistons And Sleeve CJ3B
This part fits:
| Model | Years |
|---|---|
| Military jeeps | |
| Willys MB (early) | 1941, 1942 |
| Willys MB | 1942, 1943, 1944, 1945 |
| Hotchkiss M201 | 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966 |
| 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 |
📐 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)
