CRANKSHAFT ENGINE CHAIN TYPE NEW

EARLY MBMBM201M201EARLYEARLY GPWGPWCJ2ACJ3AM38A1
Manual available
508,81 €
BTW: 88,31 €
SKU:  WOA7568

Crankshaft for chain and gear drive engines.
Pre-drilled for tapered dowel bolts.
Comes with set of high quality main and connecting rod bearings.

My Wishlist
War Dept specs from the original Technical Manual — click to open

Crankshaft engine chain drive type new

For L-134 Go Devil engine with chain drive

New crankshaft for the L-134 'Go Devil' engine with chain drive camshaft. This crankshaft is suitable for the early version of the engine where the camshaft is driven by a chain rather than gears. Supplied complete with high-quality main and rod bearings.

Drive type

Chain drive

Engine

L-134 Go Devil 4-cylinder

Design

Pre-drilled mounting holes

Includes

Main and rod bearings

Features

  • Suitable for chain drive camshaft
  • Completely pre-drilled for tapered bolt mounting
  • Supplied with complete set of main and rod bearings
  • For L-134 flathead engine
  • New production

★ This crankshaft is supplied complete with a high-quality set of main and rod bearings, matched to the specifications of the original engine.

Application

This crankshaft is specific to early L-134 Go Devil engines with chain drive. According to product categories, suitable for Willys MB, Ford GPW, Hotchkiss M201 and early CJ-2A vehicles. The transition from chain to gear drive occurred mid-1946 (around engine serial number 44417-44418). Engines built until July 1946 had chain drive, later engines usually gear drive.

Installation notes

Note: chain drive crankshaft is NOT interchangeable with gear drive without modification of timing cover, camshaft, and oil pump. Before installation, check which system your engine has by removing the timing cover. Crankshaft is pre-drilled for flywheel mounting — verify that the centering pins of your flywheel match.

Compatibility

ONLY for engines with chain drive. Does NOT fit engines with gear drive without extensive conversion. Early Willys MB (1941-1945), Ford GPW (1941-1945), Hotchkiss M201, and early CJ-2A (1945-mid-1946) had chain drive. From mid-1946, Willys switched to gear drive. Some later production runs reverted to chain drive due to parts shortages.

Historical context

The L-134 'Go Devil' engine was developed by Willys chief engineer Delmar 'Barney' Roos and was the most powerful engine in the original jeep prototypes. Early wartime production used chain drive for the camshaft, a proven technique that was later replaced by the simpler and cheaper gear drive.

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, M201EARLY, EARLY GPW, GPW, CJ2A, CJ3A, M38A1
ALL_CATEGORIES : LOWER ENGINE CJ2A, CRANKSHAFT CJ3A, LOWER ENGINE M38, CRANKSHAFT - M38, CRANKSHAFT CJ3B

This part fits:

ModelYears
Military jeeps
Willys MB (early)1941, 1942
Willys MB1942, 1943, 1944, 1945
Ford GPW (early)1942
Ford GPW1942, 1943, 1944, 1945
Hotchkiss M201 (early)1956, 1957, 1958, 1959
Hotchkiss M2011956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966
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

📐 Diagrams & technical drawings

From the original Technical Manual CJ2A_PL_1949 — Parts List — only for Willys CJ-2A / CJ-3A (1949)

Group 10-03 — Crankshaft
Group 10-03 — Crankshaft
Page 20–21
Group 10-04 — Crankshaft Bearings
Group 10-04 — Crankshaft Bearings
Page 21–22

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