STARTER 12 VOLTS

EARLY MBMBEARLY GPWGPW
Manual available
345,64 €
BTW: 59,99 €
SKU:  WOA1245-12V
GTIN (EAN,ISBN): C4

AL-MZ-4124

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War Dept specs from the original Technical Manual — click to open

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

Restoration part — not a ready-to-fit product

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.

COMPATIBLE_MODELS EARLY MB, MB, EARLY GPW, GPW

This part fits:

ModelYears
Military jeeps
Willys MB (early)1941, 1942
Willys MB1942, 1943, 1944, 1945
Ford GPW (early)1942
Ford GPW1942, 1943, 1944, 1945

📐 Diagrams & technical drawings

From the original Technical Manual TM 10-1513 — Maintenance Manual — only for Willys MB / Ford GPW (1942)

Electrical System — Wiring, Distributor, Generator, Regulator, Starter
Electrical System — Wiring, Distributor, Generator, Regulator, Starter
Page 58–72