KEY BENDIX DRIVE 6 VOLTS STARTER
Woodruff key Bendix drive 6 volt starter
For Autolite MZ-4113 starter
Woodruff key for mounting the Bendix drive onto the armature shaft of the 6 volt starter. Small but essential component that ensures the correct connection between drive and starter shaft.
|
Application 6V starter motor MZ-4113 |
Vehicle MB, GPW, CJ-2A, CJ-3A, CJ-3B |
|
Type Woodruff key |
Function Bendix mounting on armature shaft |
Features
- Woodruff key for Bendix drive
- For Autolite MZ-4113 starter
- Prevents Bendix slipping on armature shaft
- Suitable for 6 volt and 12 volt systems
- Replacement part for worn key
★ Original specification for Willys MB, Ford GPW and early CJ models with Autolite 6 volt starter.
Application
For Autolite MZ-4113 starter on Willys MB (1941-1945), Ford GPW (1941-1945), CJ-2A (1946-1949), early CJ-3A and CJ-3B with 6 volt system. Also usable in 12 volt conversions retaining the original 6 volt starter.
Installation notes
The key fits into the slot of the armature shaft and holds the Bendix drive in place. During installation: ensure the key is fully seated in the shaft slot before sliding on the Bendix. Check after installation that the Bendix can rotate freely without play.
Compatibility
Specific to Autolite MZ-4113 starter (10-tooth Bendix with 97-tooth flywheel). Does NOT fit later key-start starters (MCH-6203, MCH-6207 types) which have a different shaft configuration.
Historical context
The Autolite MZ-4113 was the standard 6 volt Bendix starter on WWII Willys MB and Ford GPW jeeps, operated via foot switch. This simple yet robust starter was also fitted to early civilian CJ models until the late 1940s.
⚠ 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.
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 |
📐 Diagrams & technical drawings
From the original Technical Manual TM 10-1513 — Maintenance Manual — only for Willys MB / Ford GPW (1942)








