RINGS SIZE 040 (SET)

EARLY MBMBM201CJ2ACJ3AM38M38A1GPWCJ3B
Manual available
50,88 €
BTW: 8,83 €
SKU:  WOA15283
GTIN (EAN,ISBN): 3.2
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War Dept specs from the original Technical Manual — click to open

Piston Ring Set 0.40" Oversize

Complete for 4 cylinders

Complete piston ring set in 0.40" oversize for the 134ci (2.2L) L-head and F-head four-cylinder engines. This set contains piston rings for all four cylinders and is suitable for bored or repaired engine blocks where the cylinder diameter has been increased by 0.040 inch (approximately 1 mm).

Oversize

040" (1.0 mm)

Application

134ci L-134 & F-134 engines

Contents

Complete for 4 cylinders

Type

L-head (flathead) and F-head

Features

  • Oversize.040" for rebored cylinders
  • Suitable for L-134 flathead (Go Devil) engine
  • Suitable for F-134 overhead valve engine
  • Complete set for all four cylinders
  • Standard 3-ring configuration per piston

★ High-quality piston rings for engine overhaul where cylinders have been bored.040" oversize. Suitable for both the L-134 flathead and F-134 overhead valve versions of the 134ci engine.

Installation notes

Note: these oversize rings are ONLY suitable for engine blocks whose cylinders have been precision bored to.040" oversize. Always check cylinder measurements with an inside micrometer before ordering piston rings. During fitting: check ring gap according to factory specifications.

Compatibility

Suitable for both variants of the 134ci engine: the L-134 flathead (chain drive or gear drive) and the F-134 overhead valve. Not applicable to standard or other oversizes (.010",.020",.030",.060").

Historical context

The 134ci engine was the workhorse of the WWII jeep and early civilian models. When overhauling high-mileage engines, the cylinder block was often bored to.040" oversize to compensate for wear and give the engine new life.

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

Restoration part — not a ready-to-fit product

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.

COMPATIBLE_MODELS EARLY MB, MB, M201, GPW, CJ2A, CJ3A, CJ3B, M38, M38A1
ALL_CATEGORIES : Piston,Rings & Bearings CJ2A, Rings CJ3A, Piston,Rings & Bearings M38, Rings - M38, Rings CJ3B

This part fits:

ModelYears
Military jeeps
Willys MB (early)1941, 1942
Willys MB1942, 1943, 1944, 1945
Ford GPW1942, 1943, 1944, 1945
Hotchkiss M2011956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966
Willys M381950, 1951, 1952
Willys M38A11952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971
CJ series
Jeep CJ-2A1945, 1946, 1947, 1948, 1949
Jeep CJ-3A1949, 1950, 1951, 1952, 1953
Jeep CJ-3B1953, 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)

Group 10-07 — Piston Rings
Group 10-07 — Piston Rings
Page 23–23

From the original Technical Manual TM 10-1513 — Maintenance Manual — only for Willys MB / Ford GPW (1942)

Engine — Block, Crankshaft, Camshaft, Pistons, Valves
Engine — Block, Crankshaft, Camshaft, Pistons, Valves
Page 18–37