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Dorman W73604 Drum Brake Wheel Cylinder - Rear Left
Reliable Drum Brake Wheel Cylinder for Buick and Oldsmobile
The Dorman W73604 drum brake wheel cylinder is engineered to restore proper braking function for select Buick and Oldsmobile models. Designed with durable cast iron and precise specifications, this wheel cylinder ensures consistent hydraulic pressure for safe stopping performance.
- Includes bleeder screw for easy brake bleeding
- Constructed from cast iron for strength and durability
- Bore diameter of 0.938 inches for accurate fitment
- Brake component inlet thread size of 3/8-24 inches
- Thread diameter of 3/8 inch
- Package contains one drum brake wheel cylinder
Detailed Product Description
The Dorman W73604 drum brake wheel cylinder is specifically designed for compatibility with Buick 98, Delta 88, and Oldsmobile Riviera models. Its cast iron construction provides reliable resistance to wear and corrosion, essential for maintaining brake system integrity. The included bleeder screw simplifies the brake bleeding process, allowing for efficient maintenance and ensuring optimal hydraulic pressure. With a bore diameter of 0.938 inches and a brake component inlet thread size of 3/8-24 inches, this wheel cylinder meets exact OEM specifications for proper fit and function.
Common Applications and Problem Resolution
- Restores braking performance by replacing leaking or seized wheel cylinders
- Eliminates brake fluid leaks that cause reduced hydraulic pressure
- Addresses uneven brake shoe wear due to faulty wheel cylinder operation
- Prevents brake drag caused by sticking pistons within the cylinder
- Improves overall brake system reliability on Buick 98, Delta 88, and Oldsmobile Riviera vehicles
Installation Notes and Tips
When installing the Dorman W73604 wheel cylinder, ensure the brake system is fully depressurized before removal. Use the included bleeder screw to properly bleed air from the brake lines after installation. Verify thread compatibility with the brake line fittings, as the inlet thread size is 3/8-24 inches. Inspect brake shoes and hardware for wear during replacement to maintain optimal braking performance.
Quality Assurance and Warranty
Dorman manufactures the W73604 wheel cylinder to meet or exceed OEM standards for durability and performance. The cast iron construction and precise machining contribute to long service life. This part is backed by Dorman's limited warranty, providing confidence in its quality and reliability for Buick and Oldsmobile brake system repairs.
| Brand | Dorman |
|---|---|
| Part Number | W73604 |
| Bleeder Screw Cap Included | No |
| Bleeder Screw Included | Yes |
| Bore Diameter | 0.938 |
| 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 6 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1970 | Buick | Riviera | Rear Left | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1970 | Oldsmobile | 98 | Rear Left | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1970 | Oldsmobile | Delta 88 | Rear Left | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1969 | Buick | Riviera | Rear Left | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1968 | Buick | Riviera | Rear Left | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1967 | Buick | Riviera | Rear Left | Fits 15/16" bore size drum brakes on multiple vehicle models. |
* 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.