HOUSING PINION STARTER JEEP
WOA1585
Starter Pinion Housing (Drive End Housing)
For Auto-Lite MZ-4113 starter
Drive end housing for the classic Auto-Lite MZ-4113 starter motor as originally fitted to WWII military jeeps and early civilian models. This cast steel component houses the Bendix drive mechanism and forms the nose cap of the starter motor. Suitable for both 6V and 12V conversions.
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Material Cast steel |
Application Auto-Lite MZ-4113 starter |
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Vehicle Per category: Willys MB, Ford GPW, CJ-2A, CJ-3A, CJ-3B |
Type Bendix drive housing |
Features
- Cast steel construction for durability
- Front end housing for starter motor
- Houses Bendix drive and pinion gear
- Compatible with 6V and 12V systems
- Replacement for A1585 / WOA1585
★ High-quality replacement part for the original Auto-Lite starter. The housing has the same casting tolerances and fit as the original component and is an essential element when rebuilding the classic MZ-4113 starter motor.
Application
For vehicles equipped with Auto-Lite MZ-4113 starter motor with 10-tooth Bendix drive and 97-tooth flywheel. The MZ-4113 was the standard 6V starter on Willys MB (1941-1945), Ford GPW (1941-1945) and early CJ-2A (1945-1949). Also on later models where the original starter was retained or during 12V conversions where the old starter was adapted.
Installation notes
Check before installation that the housing is free from cracks and sharp burrs. The internal bushing in the housing must fit on the armature shaft without play but should rotate slightly. During installation, ensure correct alignment of the Bendix drive — incorrect alignment leads to wear of pinion and flywheel ring gear. Use new fixing bolts and check torque settings according to original specifications.
Compatibility
Specific to the Auto-Lite MZ-4113 starter. MB and GPW housings had different casting numbers but are interchangeable. This component does NOT fit later starters with Folo-Thru drive or gear-reduction starters. Always verify the starter type number before ordering this part — later models (CJ-3B, M38, M38A1) often used different starter types with 9-tooth pinion and 129-tooth flywheel.
Historical context
The Auto-Lite MZ-4113 was the standard 6V starter motor on all WWII Willys MB and Ford GPW jeeps from 1941, and was continued on the early civilian CJ-2A. The robust design with open Bendix drive was characteristic of this period and was later replaced by more modern systems with solenoid and pre-engagement.
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 | 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966 |
📐 Diagrams & technical drawings
From the original Technical Manual TM 10-1513 — Maintenance Manual — only for Willys MB / Ford GPW (1942)
