A MARKED CRANK FLYWHEEL BOLT SET
3/8 x 1 1/8 UNF 24 TR
SET OF 4
Used for piston pin, crankshaft to flywheel and hand brake first model brake drum.
Crankshaft flywheel bolt set marked
Set of 6 bolts with nuts
Complete set of 6 marked bolts for securing the flywheel to the crankshaft of the L-134 engine. The set consists of 4 straight 3/8"-24 bolts and 2 tapered dowel bolts with corresponding nuts and lock washers. Correct installation requires removal of the crankcase and rear crankshaft bearing.
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Specification 4x 3/8"-24 × 1 5/32" + 2x tapered dowel bolts 3/8"-24 |
Finish Marked, hardened quality |
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Engine L-134 "Go Devil" and F-134 "Hurricane" |
Included 6 bolts, 6 nuts, 6 external tooth lock washers |
Features
- Set of 6 bolts for flywheel-to-crankshaft attachment
- 4 straight bolts and 2 tapered dowel bolts with 3/8"-24 thread
- Supplied with external tooth lock washers (not split lock washers)
- Correctly marked reproduction to original specification WO-632157
- Hardened finish for reliable attachment
★ Essential component for any engine rebuild or flywheel replacement. The tapered dowel bolts ensure correct positioning of the flywheel.
Installation notes
The bolts are inserted from the rear through the crankshaft flange — installation is only possible with the crankcase and rear crankshaft bearing cap removed. Install the 2 tapered dowel bolts first for correct alignment, then the 4 straight bolts. Use external tooth lock washers (not split lock washers) for sufficient clearance between nut and clutch springs. Flywheel torque: 35-41 ft-lbs. Check clearance between bolt ends and clutch springs.
Compatibility
Fits engines with 3/8"-24 thread in crankshaft. Some replacement flywheels were manufactured with straight 9/16" dowel holes — check before installation. When replacing flywheel: only use with matching flywheel to prevent misalignment and crankshaft failure.
Historical context
The original Willys bolt number WO-632157 was used on all L-134 and F-134 engines from the 1930s through the 1970s. The tapered dowel bolts index the flywheel on the crankshaft for correct timing marks.
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 : LOWER ENGINE CJ2A, CRANKSHAFT CJ3A, LOWER ENGINE M38, CRANKSHAFT - M38, CRANKSHAFT 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 |
| 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)
