Brake Master Cylinder, 48-66 Willys CJ&M38(A1) Jeep Models
both mounting holes are NOT threaded, and measure 3 3/8 center to center, early CJ2a has one hole threaded and measure 3 1/8 center to center on the mounting bolts
Brake Master Cylinder, 1948-1966
For late CJ-2A, CJ-3A, CJ-3B, CJ-5, M38 and M38A1
Reproduction brake master cylinder for post-war Willys CJ models and military M38 series with 9" drum brakes. Single reservoir design with frame mounting, suitable for vehicles from 1948 to 1966.
Type Single reservoir, frame-mounted | Cylinder bore 1 inch (25.4 mm) |
Mounting 2 non-threaded through holes | Scope of delivery Complete with rubber boot |
Features
- Cylinder bore: 1" (25.4 mm)
- Mounting hole spacing: 3-3/8" (85.7 mm) centre-to-centre
- Overall length: 7" (178 mm)
- Both mounting holes non-threaded (through-bolt mounting)
- Fully assembled with internal components (piston, spring)
- Rubber dust boot included
- Original part number: WO-805223
📐 Dimensions
Cylinder bore 1 inch (25.4 mm) | Length 178 mm (7 inch) |
Mounting hole spacing 7 mm (3-3/8 inch) | Mounting holes 5 mm (3/8 inch) |
★ Fully assembled brake master cylinder with all internal components. Supplied with rubber dust boot. Outlet bolt and copper sealing washers available separately.
⚠ 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 : BRAKES MASTER CYL CJ3A, BRAKES MASTER CYL M38, BRAKES MASTER CYL CJ3B
This part fits:
| Model | Years |
|---|---|
| Military jeeps | |
| 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 |
| 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)








