STARTER 12 VOLTS
AL-MZ-4124
Starter Motor 12 Volt
For 6V to 12V electrical system conversion
This 12 volt starter motor is specifically designed for vehicles whose original 6 volt electrical system has been converted to 12 volt. The motor is a direct replacement for the original starter motors and fits the L-134 'Go Devil' engine with 97-tooth flywheel.
|
Voltage 12 Volt |
Application 6V to 12V conversion |
|
Flywheel 97-tooth |
Replaces MZ-4113, MZ-4199, MZ-4124 |
Features
- 12 volt direct replacement for original 6V starter motor
- Suitable for L-134 engine with 97-tooth flywheel
- Supplied complete including Bendix drive
- Replaces original numbers MZ-4113, MZ-4199, MZ-4124
- Clockwise rotation (CW)
★ This starter motor is designed as a direct replacement when upgrading the original 6 volt system to 12 volt and provides reliable performance for restored vehicles.
Application
For military jeeps (1941-1945) and early CJ models (1945-1953) with L-134 'Go Devil' engine and 97-tooth flywheel. Suitable for vehicles with 3/8" starter motor mounting bolts. Important: check your flywheel tooth count and original starter motor number before ordering.
Installation notes
Requires a complete 12 volt electrical system. The 12V starter motor has only one connection. Check that your vehicle has a 97-tooth flywheel. Using the original 6V starter on 12V may eventually burn out due to overload.
Compatibility
Fits vehicles with 97-tooth flywheel and L-134 engine. Not suitable for later models with 124-tooth or 129-tooth flywheel (such as late CJ-3A/CJ-3B with F-134 engine). Note: the original 6V starter may run temporarily on 12V, but will eventually fail.
Historical context
During WWII and the early post-war period, military jeeps and civilian CJ models used a 6 volt electrical system with starter motors from manufacturers including Auto-Lite. When converting to 12 volt for improved performance and compatibility with modern electrical components, an adapted starter motor is necessary.
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.
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)










