BEARING CRANKSHAFT 040 SET
Crankshaft bearing 040 set
Complete with front, centre and rear bearings
Crankshaft bearing set for reground crankshafts, 0.040" undersize. This bearing set is suitable for engines where the crankshaft has been ground 0.040" (approx. 1 mm) during engine overhaul. Set contains six bearing shells: front, centre and rear main bearings.
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Type 040" (1 mm) undersize |
Material Babbitt-lined bearing steel |
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Set contents 6 bearing shells (3 positions, upper + lower) |
Application For reground crankshafts |
Features
- Suitable for 0.040" undersize crankshaft bearing journals
- Complete with front, centre and rear main bearings
- Front bearing features flange for axial positioning
- Rear bearing has double groove for oil passage
- Meets original engine overhaul specifications
★ Essential component during professional engine overhaul. Always verify crankshaft dimensions with measuring tools during fitting and use plastigage to check bearing clearance.
Installation notes
Check exact crankshaft measurement before fitting — this bearing only fits crankshafts ground exactly.040" undersize. Always fit with assembly oil, check bearing clearance with plastigage (ideal 0.001"-0.003"), ensure correct orientation (flange at front, double groove at rear). Torque main bearing caps to 65-75 lb-ft, use clean and dry bolts. Ensure all oil passages are clear and no dirt gets behind the bearing shells.
Compatibility
Fits ONLY crankshafts ground exactly.040" undersize. If in doubt: measure the crankshaft main bearing journals — standard is 2.498"-2.500",.040" undersize becomes 2.458"-2.460". Incorrect bearing size leads to engine damage. Also available in standard,.010,.020,.030 versions.
Historical context
The Go-Devil L-134 engine was built in millions of Jeeps between 1941-1971. During engine overhaul, the crankshaft was often reground in steps.010" up to maximum.040"-.060" undersize, after which the matching bearing set was fitted.
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, CRANKSHAFT CJ3A, Bearings CJ3A, Piston,Rings & Bearings M38, Bearings - M38, CRANKSHAFT CJ3B, Bearings 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)
