STUD MUFFLER PIPE 3/8
1½ inch (≈38 mm)
Exhaust manifold stud 3/8"
For mounting exhaust pipe to manifold
Double-ended stud for mounting the exhaust pipe to the exhaust manifold. This component has threads on both ends and screws into the manifold, after which the exhaust pipe flange is secured with a nut. Essential for a gas-tight connection between manifold and exhaust system.
|
Material Steel |
Thread 3/8"-16 and 3/8"-24 |
|
Vehicle Willys MB / Ford GPW / M201 |
Application Exhaust manifold |
Features
- Original part number WO-332515
- Dual thread: 3/8"-16 (manifold side) and 3/8"-24 (nut side)
- Original overall length 1-3/8" (WWII) or 1-9/16" (post-war)
- Mounts in exhaust manifold, not in engine block
- Superseded by GM 103196 in the 1950s
★ Correct reproduction part for authentic restoration of the exhaust system on WWII jeeps and post-war M201.
Application
Willys MB (1941-1945), Ford GPW (1941-1945) and Hotchkiss M201. This stud sits in the exhaust manifold flange and serves as the mounting point for the exhaust pipe. The exhaust pipe flange is secured onto this stud with a 3/8"-24 nut.
Installation notes
Screw the stud with the coarse thread (3/8"-16) into the exhaust manifold. The fine thread (3/8"-24) protrudes from the manifold and accepts the nut that secures the exhaust pipe flange. Use a new gasket between manifold and exhaust pipe. Use Seez Pruf nuts or equivalent during installation.
Compatibility
Note: this is the single stud in the exhaust manifold itself, not the studs that attach the manifold to the engine block. WWII version has OAL 1-3/8", post-war GM 103196 has OAL 1-9/16". Both are functionally interchangeable. Not to be confused with the manifold mounting studs (WO-300143, 632159, 349712).
Historical context
Original Willys-Overland part number WO-332515, later superseded by GM 103196. This small but critical component formed the connection between the cast iron exhaust manifold and the steel exhaust pipe on millions of WWII jeeps.
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
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 : Exhaust & Intake Manifold Willys MB Ford GPW M201, STUDS & PLUGS CJ2A, EXHAUST COLLECTOR - CJ3A, STUDS & PLUGS CJ3A, EXHAUST COLLECTOR - M38, Engine complete
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 (early) | 1956, 1957, 1958, 1959 |
| Hotchkiss M201 | 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966 |
| 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 |
📐 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)
