CAP GAS TANK SMALL EARLY TYPE
Here is an example of an early fuel filler cap for the Willys MB (1941–early 1942) – without screw thread, using a bayonet lock system.
This cap has a flat top, usually finished in Olive Drab (OD), and in the earliest versions came without a chain.
From available sources and TM manuals, this type is specific to the very first Willys MB “slat grille” and early Ford GPW models.
Technical details & historical context – Willys MB “Early” fuel cap (no thread)
Overview
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Period: Nov. 1941 – approx. Feb. 1942
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Closure: Bayonet lock with quarter-turn engagement
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Design: Flat steel cap with 2 or 3 internal lugs, rubber gasket, no chain on initial production
Characteristics
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Diameter: approx. 2 inches (≈ 50 mm)
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Seal: Pressed rubber
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Finish: Phosphate coating or OD paint
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Chain: Absent on first production, later added
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 : FUEL TANK - CJ2A, FUEL TANK - CJ3A, FUEL TANK - CJ3B
This part fits:
| Model | Years |
|---|---|
| Military jeeps | |
| Willys MB (early) | 1941, 1942 |
| 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 |
| Jeep CJ-5 | 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983 |
📐 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)
