NOS PLATE BREAKER DISTRIBUTOR ASSEMBLY

EARLY MBMBEARLY GPWGPW
Manual available
Price available when back in stock
SKU:  WOA1662 GPW12151
GTIN (EAN,ISBN): 1.26
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War Dept specs from the original Technical Manual — click to open

NOS Breaker Plate Assembly

For Autolite IGC-4705 distributors

Original New Old Stock (NOS) breaker plate assembly for early Autolite distributors as fitted to WWII Willys MB and Ford GPW jeeps. This complete assembly consists of the breaker plate with contact points and mounting hardware, essential for proper ignition system operation.

Condition

NOS (New Old Stock)

Application

Breaker plate distributors

Voltage

6V and 12V systems

Part number

GPW12151

Features

  • Original New Old Stock quality
  • Suitable for early Autolite IGC-4705 distributors
  • Complete with mounting plate and contact points
  • Correctly set.020" contact gap
  • Suitable for 6V and 12V systems

★ Rare original part from old stock, precisely to original specifications for an authentic restoration of your WWII jeep.

Application

This breaker plate assembly is specifically intended for breaker point ignition distributors on vehicles fitted with the 4-134 (L-134) engine. Check the type plate on your distributor to ensure compatibility — must start with three letters followed by four digits (e.g. IGC-4705).

Installation notes

Before fitting, check the contact gap — standard.020" measured with a feeler gauge when the fibre block rests on the highest point of the cam. Ensure the condenser wire and movable spring arm are securely fastened to the binding post and do not touch any moving parts. Test the contact spring tension (17-20 ounces) with a spring scale.

Compatibility

Please note: this assembly is NOT suitable for later dust-proof distributors. Check the Autolite type number on your distributor. Early IGC-4705 distributors have an open housing without dust seal. Later production IAD, IAT and IAY distributors use different breaker plate assemblies.

Historical context

The Autolite IGC-4705 distributor was standard fitment on Willys MB and Ford GPW jeeps until early 1944, after which more dust-proof versions were introduced. These breaker plate assemblies were crucial components in the 6V ignition system of over 600,000 WWII jeeps.

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