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Dorman W37531 Drum Brake Wheel Cylinder - Rear
Reliable Drum Brake Wheel Cylinder for Buick and Chevrolet Models
The Dorman W37531 drum brake wheel cylinder is engineered to restore proper braking function in select Buick, Chevrolet, Oldsmobile, and Pontiac vehicles. Designed with durable cast iron construction and precise bore diameter, this wheel cylinder ensures consistent hydraulic pressure for safe and effective braking.
- Includes bleeder screw for easy brake system bleeding
- Constructed from cast iron for strength and durability
- Bore diameter of 0.688 inches for accurate fitment
- Brake component inlet thread size: 3/8-24 inches
- Thread diameter of 3/8 inch for secure installation
- Package contains one drum brake wheel cylinder
Durable Construction and Precise Specifications
The Dorman W37531 wheel cylinder features a cast iron casting material that provides long-lasting resistance to wear and corrosion. Its 0.688-inch bore diameter is designed to match original equipment specifications, ensuring proper hydraulic pressure and brake shoe movement. The included bleeder screw simplifies the brake bleeding process, although the bleeder screw cap is not included. Thread sizes of 3/8-24 inches for the brake component inlet and 3/8 inch for the thread diameter guarantee compatibility with the brake lines and mounting hardware on compatible vehicles.
Compatible Vehicles and Applications
This drum brake wheel cylinder is compatible with a range of Buick, Chevrolet, Oldsmobile, and Pontiac models, including the Buick Century, Chevrolet Cavalier, Chevrolet Citation, Oldsmobile Omega, and Pontiac Sunbird, among others. It is suitable for vehicles such as the Chevrolet Chevette, Pontiac Phoenix, and Buick Skylark, making it a practical replacement part for maintaining braking performance on these specific models.
Common Issues Addressed by the W37531 Wheel Cylinder
- Brake fluid leaks from worn or damaged wheel cylinders
- Reduced braking efficiency due to cylinder bore wear
- Uneven brake shoe application causing pulling or noise
- Brake pedal sponginess caused by air in the brake lines
- Corrosion-related failure of original wheel cylinder components
Installation Notes and Tips
When installing the Dorman W37531 drum brake wheel cylinder, ensure the brake system is properly bled using the included bleeder screw to remove air and maintain hydraulic pressure. Verify thread compatibility with existing brake lines and mounting points. It is recommended to inspect brake shoes and hardware during installation and replace any worn components to ensure optimal braking performance.
Quality Assurance and Warranty Information
Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The W37531 wheel cylinder undergoes rigorous quality control to ensure proper fit and function. Please refer to Dorman's warranty policy for specific coverage details on this brake hydraulics component.
| Brand | Dorman |
|---|---|
| Part Number | W37531 |
| Bleeder Screw Cap Included | No |
| Bleeder Screw Included | Yes |
| Bore Diameter | 0.688 |
| Brake Component Inlet Thread Size | 3/8-24 in |
| Casting Material | Cast Iron |
| Package Contents | 1 Drum Brake Wheel Cylinder |
| Thread Diameter | 3/8 |
This part fits 91 vehicles. Search below:
| Year | Make | Model | Body Type | Position | Notes |
|---|---|---|---|---|---|
| 1987 | Buick | Century | Rear | Bore size of 11/16 In. fits vehicles with RPO Code JA1 (Light Duty Brakes). | |
| 1987 | Chevrolet | Celebrity | Rear | Bore size of 11/16 In. fits vehicles with RPO Code JA1 (Light Duty Brakes). | |
| 1987 | Chevrolet | Chevette | Rear | Fits drum brakes with 11/16" bore size. | |
| 1987 | Oldsmobile | Cutlass Ciera | Rear | Bore size of 11/16 In. fits vehicles with RPO Code JA1 (Light Duty Brakes). | |
| 1987 | Pontiac | 6000 | Rear | Bore size of 11/16 In. fits vehicles with RPO Code JA1 (Light Duty Brakes). | |
| 1987 | Pontiac | Acadian | Rear | Fits drum brakes with 11/16" bore size. | |
| 1987 | Pontiac | T1000 | Rear | Fits drum brakes with 11/16" bore size. | |
| 1986 | Buick | Century | Rear | Bore size of 11/16 In. fits vehicles with RPO Code JA1 (Light Duty Brakes). | |
| 1986 | Buick | Skyhawk | Wagon | Rear | Bore size of 11/16 inch with clip on type. |
| 1986 | Chevrolet | Cavalier | Wagon | Rear | Bore size of 11/16 inch with clip on type. |
| 1986 | Chevrolet | Celebrity | Rear | Bore size of 11/16 In. fits vehicles with RPO Code JA1 (Light Duty Brakes). | |
| 1986 | Chevrolet | Chevette | Rear | Fits drum brakes with 11/16" bore size. | |
| 1986 | Chevrolet | Citation | Rear | Fits drum brakes with 11/16" bore size. | |
| 1986 | Oldsmobile | Cutlass Ciera | Rear | Bore size of 11/16 In. fits vehicles with RPO Code JA1 (Light Duty Brakes). | |
| 1986 | Oldsmobile | Firenza | Wagon | Rear | Bore size of 11/16 inch with clip on type. |
| 1986 | Pontiac | 6000 | Rear | Bore size of 11/16 In. fits vehicles with RPO Code JA1 (Light Duty Brakes). | |
| 1986 | Pontiac | Acadian | Rear | Fits drum brakes with 11/16" bore size. | |
| 1986 | Pontiac | Sunbird | Wagon | Rear | Bore size of 11/16 inch with clip on type. |
| 1986 | Pontiac | T1000 | Rear | Fits drum brakes with 11/16" bore size. | |
| 1985 | Buick | Century | Rear | Bore size of 11/16 In. fits vehicles with RPO Code JA1 (Light Duty Brakes). | |
| 1985 | Buick | Skyhawk | Wagon | Rear | Bore size of 11/16 inch with clip on type. |
| 1985 | Buick | Skylark | Rear | Fits drum brakes with 11/16" bore size. | |
| 1985 | Chevrolet | Cavalier | Wagon | Rear | Bore size of 11/16 inch with clip on type. |
| 1985 | Chevrolet | Celebrity | Rear | Bore size of 11/16 In. fits vehicles with RPO Code JA1 (Light Duty Brakes). | |
| 1985 | Chevrolet | Chevette | Rear | Fits drum brakes with 11/16" bore size. | |
| 1985 | Chevrolet | Citation | Rear | Fits drum brakes with 11/16" bore size. | |
| 1985 | Chevrolet | Citation II | Rear | Fits drum brakes with 11/16" bore size. | |
| 1985 | Oldsmobile | Cutlass Ciera | Rear | Bore size of 11/16 In. fits vehicles with RPO Code JA1 (Light Duty Brakes). | |
| 1985 | Oldsmobile | Firenza | Wagon | Rear | Bore size of 11/16 inch with clip on type. |
| 1985 | Pontiac | 6000 | Rear | Bore size of 11/16 In. fits vehicles with RPO Code JA1 (Light Duty Brakes). | |
| 1985 | Pontiac | Acadian | Rear | Fits drum brakes with 11/16" bore size. | |
| 1985 | Pontiac | J2000 Sunbird | Wagon | Rear | Bore size of 11/16 inch with clip on type. |
| 1985 | Pontiac | T1000 | Rear | Fits drum brakes with 11/16" bore size. | |
| 1984 | Buick | Century | Rear | Bore size of 11/16 In.; compatible with vehicles equipped with RPO Code JA8 (Medium Duty Brakes) or RPO Code JA1 (Light Duty Brakes) | |
| 1984 | Buick | Skyhawk | Wagon | Rear | Fits drum brakes with 11/16" bore size. |
| 1984 | Buick | Skylark | Rear | Fits drum brakes with 11/16" bore size. | |
| 1984 | Chevrolet | Cavalier | Wagon | Rear | Fits drum brakes with 11/16" bore size. |
| 1984 | Chevrolet | Celebrity | Rear | Bore size of 11/16 In.; compatible with vehicles equipped with RPO Code JA8 (Medium Duty Brakes) or RPO Code JA1 (Light Duty Brakes) | |
| 1984 | Chevrolet | Chevette | Rear | Fits drum brakes with 11/16" bore size. | |
| 1984 | Chevrolet | Citation | Rear | Fits drum brakes with 11/16" bore size. | |
| 1984 | Chevrolet | Citation II | Rear | Fits drum brakes with 11/16" bore size. | |
| 1984 | Oldsmobile | Cutlass Ciera | Rear | Bore size of 11/16 In.; compatible with vehicles equipped with RPO Code JA8 (Medium Duty Brakes) or RPO Code JA1 (Light Duty Brakes) | |
| 1984 | Oldsmobile | Firenza | Wagon | Rear | Fits drum brakes with 11/16" bore size. |
| 1984 | Oldsmobile | Omega | Rear | Fits drum brakes with 11/16" bore size. | |
| 1984 | Pontiac | 6000 | Rear | Bore size of 11/16 In.; compatible with vehicles equipped with RPO Code JA8 (Medium Duty Brakes) or RPO Code JA1 (Light Duty Brakes) | |
| 1984 | Pontiac | Acadian | Rear | Fits drum brakes with 11/16" bore size. | |
| 1984 | Pontiac | J2000 Sunbird | Wagon | Rear | Fits drum brakes with 11/16" bore size. |
| 1984 | Pontiac | Phoenix | Rear | Fits drum brakes with 11/16" bore size. | |
| 1984 | Pontiac | T1000 | Rear | Fits drum brakes with 11/16" bore size. | |
| 1983 | Buick | Century | Rear | Bore size of 11/16 In.; compatible with vehicles equipped with RPO Code JA8 (Medium Duty Brakes) or RPO Code JA1 (Light Duty Brakes) | |
| 1983 | Buick | Skyhawk | Wagon | Rear | Fits drum brakes with 11/16" bore size. |
| 1983 | Buick | Skylark | Rear | Fits drum brakes with 11/16" bore size. | |
| 1983 | Chevrolet | Cavalier | Wagon | Rear | Fits drum brakes with 11/16" bore size. |
| 1983 | Chevrolet | Celebrity | Rear | Bore size of 11/16 In.; compatible with vehicles equipped with RPO Code JA8 (Medium Duty Brakes) or RPO Code JA1 (Light Duty Brakes) | |
| 1983 | Chevrolet | Chevette | Rear | Fits drum brakes with 11/16" bore size. | |
| 1983 | Chevrolet | Citation | Rear | Fits drum brakes with 11/16" bore size. | |
| 1983 | Oldsmobile | Cutlass Ciera | Rear | Bore size of 11/16 In.; compatible with vehicles equipped with RPO Code JA8 (Medium Duty Brakes) or RPO Code JA1 (Light Duty Brakes) | |
| 1983 | Oldsmobile | Firenza | Wagon | Rear | Fits drum brakes with 11/16" bore size. |
| 1983 | Oldsmobile | Omega | Rear | Fits drum brakes with 11/16" bore size. | |
| 1983 | Pontiac | 6000 | Rear | Bore size of 11/16 In.; compatible with vehicles equipped with RPO Code JA8 (Medium Duty Brakes) or RPO Code JA1 (Light Duty Brakes) | |
| 1983 | Pontiac | Acadian | Rear | Fits drum brakes with 11/16" bore size. | |
| 1983 | Pontiac | J2000 | Wagon | Rear | Fits drum brakes with 11/16" bore size. |
| 1983 | Pontiac | Phoenix | Rear | Fits drum brakes with 11/16" bore size. | |
| 1983 | Pontiac | T1000 | Rear | Fits drum brakes with 11/16" bore size. | |
| 1982 | Buick | Century | Rear | Bore size of 11/16 In.; compatible with vehicles equipped with RPO Code JA8 (Medium Duty Brakes) or RPO Code JA1 (Light Duty Brakes) | |
| 1982 | Buick | Skyhawk | Rear | Bore: 11/16 In.; 3 Passenger Rear Seat; Wagon | |
| 1982 | Buick | Skylark | Rear | Fits drum brakes with 11/16" bore size. | |
| 1982 | Chevrolet | Cavalier | Wagon | Rear | Bore: 11/16 In.; 3 Passenger Rear Seat |
| 1982 | Chevrolet | Celebrity | Rear | Bore size of 11/16 In.; compatible with vehicles equipped with RPO Code JA8 (Medium Duty Brakes) or RPO Code JA1 (Light Duty Brakes) | |
| 1982 | Chevrolet | Chevette | Rear | Fits drum brakes with 11/16" bore size. | |
| 1982 | Chevrolet | Citation | Rear | Fits drum brakes with 11/16" bore size. | |
| 1982 | Oldsmobile | Cutlass Ciera | Rear | Bore size of 11/16 In.; compatible with vehicles equipped with RPO Code JA8 (Medium Duty Brakes) or RPO Code JA1 (Light Duty Brakes) | |
| 1982 | Oldsmobile | Firenza | Rear | Bore: 11/16 In.; 3 Passenger Rear Seat; Wagon | |
| 1982 | Oldsmobile | Omega | Rear | Fits drum brakes with 11/16" bore size. | |
| 1982 | Pontiac | 6000 | Rear | Bore size of 11/16 In.; compatible with vehicles equipped with RPO Code JA8 (Medium Duty Brakes) or RPO Code JA1 (Light Duty Brakes) | |
| 1982 | Pontiac | Acadian | Rear | Fits drum brakes with 11/16" bore size. | |
| 1982 | Pontiac | J2000 | Wagon | Rear | Bore: 11/16 In.; 3 Passenger Rear Seat |
| 1982 | Pontiac | Phoenix | Rear | Fits drum brakes with 11/16" bore size. | |
| 1982 | Pontiac | T1000 | Rear | Fits drum brakes with 11/16" bore size. | |
| 1981 | Buick | Skylark | Rear | Fits drum brakes with 11/16" bore size. | |
| 1981 | Chevrolet | Chevette | Rear | Fits drum brakes with 11/16" bore size. | |
| 1981 | Chevrolet | Citation | Rear | Fits drum brakes with 11/16" bore size. | |
| 1981 | Oldsmobile | Omega | Rear | Fits drum brakes with 11/16" bore size. | |
| 1981 | Pontiac | Acadian | Rear | Fits drum brakes with 11/16" bore size. | |
| 1981 | Pontiac | Phoenix | Rear | Fits drum brakes with 11/16" bore size. | |
| 1981 | Pontiac | T1000 | Rear | Fits drum brakes with 11/16" bore size. | |
| 1980 | Buick | Skylark | Rear | Fits drum brakes with 11/16" bore size. | |
| 1980 | Chevrolet | Chevette | Rear | Fits drum brakes with 11/16" bore size. | |
| 1980 | Chevrolet | Citation | Rear | Fits drum brakes with 11/16" bore size. | |
| 1980 | Oldsmobile | Omega | Rear | Fits drum brakes with 11/16" bore size. | |
| 1980 | Pontiac | Phoenix | Rear | Fits drum brakes with 11/16" bore size. |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.