Overview
The Crown Automotive J0802951 is a rear driver-side wheel cylinder for 10 inch or 11 inch brakes. It fits the 1957–1964 Jeep FC150 and FC170, the 1962–1963 Gladiator, the 1956–1963 Utility Wagon and several Willys trucks.
It is a single cylinder for one side only.
Key features
- Rear driver-side wheel cylinder
- Fits 10 inch or 11 inch brakes
- Direct-fit application for forward-control and Willys trucks
Wheel cylinders and brake fluid
A drum brake wheel cylinder converts hydraulic pressure from the master cylinder into force on the brake shoes. Inside, a piston and seals move with each pedal press. When the seals wear, fluid can leak past them onto the shoe linings, which reduces braking and can contaminate the drum surface. Leaks at the boot or along the bleeder are often the first visible sign.
Wheel cylinders are commonly replaced in pairs on older axles, and the brake shoes, springs and drum are inspected in the same job. Old fluid can carry moisture and corrosion, so flush the system when a cylinder is changed. Bleed the brakes in the correct order and test the pedal before driving.
- Check the boots for cracks or leaks
- Inspect the shoes for fluid contamination
- Replace brake fluid during the repair
Specifications
| Brand | Crown Automotive |
|---|---|
| Part number | J0802951 |
| UPC | 848399053586 |
| Product type | Drum brake wheel cylinder |
| Position | Rear, driver side |
| Brake sizes | 10 inch or 11 inch |
| Fit type | Direct fit |
Vehicle fitment
It fits the 1957–1964 FC150 and FC170, the 1963–1964 FC170HD, the 1962–1963 Gladiator, the 1956–1963 Utility Wagon, the 1947–1955 Willys 1-Ton, the 1948–1951 Willys Jeepster, the 1951–1955 Willys Sedan Delivery and the 1955 Willys Utility Wagon.
The list covers early Gladiators only (1962–1963), not the later J-series or the 2020 Gladiator JT. Confirm your vehicle’s year, model and trim before ordering.









