Brake Parts for Willys M38
Wheel Cylinders, Brake Drums & Hoses for Reliable Stopping Power (1950–1952).
Why the Willys M38's Drum Brakes Need Attention After 70+ Years.
The Willys M38 was developed in 1950 as the military successor to the CJ3A and, like its predecessors, relies on a mechanically simple drum brake system with a 9-inch (228mm) diameter at all four corners. After more than 70 years, the brake components of this rugged design show clear signs of age: wheel cylinders seize up through corrosion or start leaking, brake shoes wear thin, and brake drums develop grooves or warp from heat. The seal on the master cylinder hardens over time, leading to pressure loss, while brake hoses and lines crack and compromise braking performance. The eccentrics used to readjust the brake shoes, along with the brake pedal and its linkage, are subject to mechanical wear as well. Anyone looking to keep their M38 in original or driving condition should inspect the entire brake system regularly – especially on a vehicle without power assist, a properly functioning system is critical for safety.
- Wheel Cylinders: The front wheel cylinder and rear wheel cylinder ensure even brake pressure across all four wheels.
- Master Cylinder Seal: The outer seal keeps the frame-mounted master cylinder tight and leak-free.
- Brake Drum & Shoes: The brake drum and the brake shoe set form the core of the front and rear drum brakes.
- Eccentric Adjustment: The eccentric bolt and eccentric plate allow precise readjustment of the brake shoes.
- Brake Hoses & Lines: From the front brake hose to the rear brake hose, the T-piece connector and the short brake line – every connection between frame and wheel cylinder.
- Parking Brake & Pedal: Parking brake pads, brake pedal arm and complete brake pedal with linkage for the parking brake and pedal actuation.
American and Philippine Manufacturing Quality for Your M38.
Wheel cylinders, brake drum, brake hoses, and brake pedal for the M38 come from Crown Automotive – American engineering with a long tradition in Jeep and Willys parts. The eccentric bolt, eccentric plate, and brake pedal arm are supplied by fellow American manufacturer Omix, known for precise fit and original-spec accuracy. The complete brake pedal with linkage and factory-style stamping is manufactured by Philippine specialist MD Juan.
Your Partner for Your Willys M38's Brake System.
Whether it's a single wear part or a full drum brake overhaul, we're happy to advise you on installation order, torque specs, and the required brake bleeding after replacement, including compatibility questions for the related Willys MB, CJ2A, and CJ3A models, as well as original vs. reproduction parts for your military-history M38. Your order ships from our warehouse as fast as possible after payment is received.