BOLT VALVE COVER LONG

EARLY MBMBM201M201EARLYEARLY GPWGPWCJ2ACJ3AM38M38A1
Manual available
2,61 €
BTW: 0,45 €
SKU:  WO632158
GTIN (EAN,ISBN): 8B2

WO632158 - long
5/16-18 X 4"

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

Valve cover long bolt (front)

For L-134 Go Devil engine

Hardened fixing bolt for the front mounting of the valve side cover to the L-134 engine. This longer bolt passes through the centre of the ventilator baffle on the cover and is essential for correct sealing of the crankcase ventilation system.

Material

Hardened steel

Type

Long front bolt

Engine

L-134 L-head Go Devil

Quantity per vehicle

1 piece

Features

  • Hardened fixing hardware for durable mounting
  • Passes through the centre of the ventilator baffle (PCV baffle)
  • Correct for L-134 L-head engines 1941-1953
  • Essential for proper crankcase ventilation operation
  • Front (longer) bolt — different from rear bolt

★ Manufactured from hardened steel for optimal strength under continuous vibration. Correct replacement according to original factory specifications for L-134 Go Devil engine.

Installation notes

This bolt secures the front of the valve cover and passes through the ventilator baffle. Use moderate tightening torque — over-tightening damages the thread in the aluminium block. Check the cover gasket when replacing.

Compatibility

Specific to L-134 L-head (flathead) Go Devil engines. Not applicable to F-134 Hurricane engines (with overhead valves). Note: this is the front (long) bolt — the rear bolt has different dimensions.

Historical context

The L-134 Go Devil engine was the reliable workhorse of the Willys MB and Ford GPW during WWII. The side-mounted valve cover with integrated crankcase ventilation was characteristic of this L-head (flathead) design from 1941-1953.

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, M38, M38A1
ALL_CATEGORIES : BOLTS 01 ENGINE, Upper Engine CJ2A, Upper Engine Valve CJ2A, Upper Engine Valve CJ3A, Upper Engine M38, Upper Engine Valve M38, Upper Engine Valve 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 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

📐 Diagrams & technical drawings

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

Group 10-08 — Valves, Valve Guides and Springs
Group 10-08 — Valves, Valve Guides and Springs
Page 24–24