WRENCH SPARK PLUG SOCKET
WO637635US
Spark plug socket
Original US Army New Old Stock tool
Original spark plug socket as supplied in the tool roll of WWII military jeeps. This hollow round steel tube has a hexagonal socket at one end for removing and fitting spark plugs. The socket is used with a separate handle that is inserted through the holes in the side.
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Material Steel, various finishes (black oxide, zinc-plated, OD green) |
Origin US Army original New Old Stock |
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Part number WO-637635 / 41-W-3335-40 |
Specification 27/32" (approximately 21mm) spark plug socket |
Features
- Original US Army tool from stock
- Hollow round tube with hexagonal spark plug end
- Two holes for handle insertion
- Length approximately 3 to 4 inches (7.5-10 cm)
- Suitable for standard spark plugs in military jeeps
★ This is original New Old Stock tooling from US Army stores. Finish and markings may vary — some examples are stamped with manufacturer names such as APCO-Mossburg or with federal part numbers. An authentic component of the WWII jeep tool kit.
Installation notes
The spark plug socket is used with a separate handle (3/8 inch round rod) that is inserted through the two holes in the side. This provides the mechanic with leverage to loosen and tighten spark plugs. Always clean around the spark plug before removal to prevent dirt entering the cylinder.
Historical context
This spark plug socket was supplied as standard in the tool roll of WWII military jeeps and was later also used on civilian jeeps and other light military vehicles. The component was manufactured by various producers and provided with different part numbers, of which 41-W-3335-40 and WO-637635 are the most common.
This description was generated automatically. Unsure about fitment? Contact us at info@willys.be.
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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 : Distributor Willys MB – 6V or 12V Ignition WWII Jeep, Distributor 6/12V CJ2A, Distributor 6/12V CJ3A, Distributor 6/12V CJ3B
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 |
| CJ series | |
| Jeep CJ-2A | 1945, 1946, 1947, 1948, 1949 |
| Jeep CJ-3A | 1949, 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)
From the original Technical Manual TM 10-1513 — Maintenance Manual — only for Willys MB / Ford GPW (1942)
