BRACKET STARTER TO BLOCK ENGINE JEEP
Starter motor to engine block bracket
Part no. 638646
Support bracket that anchors the starter motor to the engine block. This bracket is bent at a slight angle like the original and features one threaded hole for attachment to the starter motor and one through-hole for attachment to the block.
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Design Bent steel bracket with 5/16" UNF thread |
Application MZ-4113 type starter motors |
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Vehicle Willys MB, Ford GPW, CJ-2A |
Part number 638646 |
Features
- Bent to correct angle as per original
- One threaded hole (5/16" UNF) for attachment to starter motor
- One through-hole for mounting to engine block
- Provides rear support point for starter motor
- Essential for correct starter motor alignment
★ Reproduction of original starter motor support bracket. Manufactured to original specifications with correct thread and angle.
Application
<cite index="31-3">Fits Willys MB (1941-1945), Ford GPW (1941-1945) and CJ-2A (1946-1949)</cite> equipped with <cite index="31-3">MZ-4113 type starter motors</cite>. Suitable for both 6V and 12V conversions.
Installation notes
<cite index="31-2">The bracket has one threaded hole for attachment to the starter motor and one through-hole for attachment to the engine block</cite>. Note the correct angle during installation — the bracket is pre-bent. First mount the starter motor with the two main bolts to the flywheel housing, then fit this support bracket as the third support point.
Compatibility
Specific to starter motors with rear support tab such as the Auto-Lite MZ-4113. Not compatible with later starter motors without support tab. The bracket fits all L-134 engines in Willys MB, Ford GPW and early CJ models.
Historical context
This support bracket was an essential component of the electric starting system on the Willys MB and Ford GPW from 1941 onwards. The bracket prevents the starter motor from rotating under load and ensures correct alignment with the flywheel.
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.
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 |
| 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)
