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Dorman W79985 Drum Brake Wheel Cylinder - Rear
Reliable Drum Brake Wheel Cylinder for Ford Bobcat and Mercury Pinto
The Dorman W79985 drum brake wheel cylinder is engineered to restore proper braking function for select Ford and Mercury vehicles. Designed specifically for models like the Ford Bobcat and Mercury Pinto, this component ensures consistent hydraulic pressure within the drum brake system.
Key Features of Dorman W79985 Drum Brake Wheel Cylinder
- Constructed from durable cast iron for long-lasting performance
- Includes bleeder screw for easy brake system bleeding
- Bore diameter of 0.875 inches for precise fitment
- Brake component inlet thread size of 3/8-24 inches
- Thread diameter measures 3/8 inch to match OEM specifications
- Package contains one drum brake wheel cylinder
Detailed Product Description
The Dorman W79985 drum brake wheel cylinder is manufactured from cast iron, providing strength and resistance to wear under demanding braking conditions. Its 0.875-inch bore diameter aligns with original equipment standards, ensuring proper hydraulic pressure and brake shoe movement. The included bleeder screw facilitates straightforward brake fluid bleeding, helping maintain optimal brake performance. Thread sizes of 3/8-24 inches for the inlet and 3/8 inch diameter threads guarantee compatibility with the brake lines and mounting hardware on Ford Bobcat and Mercury Pinto models.
Applications and Common Issues Addressed
- Restores braking efficiency in Ford Bobcat and Mercury Pinto drum brake systems
- Replaces leaking or seized wheel cylinders causing brake fluid loss
- Eliminates uneven brake shoe wear due to faulty hydraulic pressure
- Resolves spongy or soft brake pedal feel linked to wheel cylinder failure
- Prevents brake drag caused by sticking pistons within the cylinder
Installation Notes and Tips
When installing the Dorman W79985 wheel cylinder, ensure the brake system is properly bled using the included bleeder screw to remove air pockets. Verify thread compatibility with existing brake lines and fittings before assembly. It is recommended to inspect brake shoes and hardware during installation to confirm overall system integrity. Use appropriate brake fluid and follow manufacturer torque specifications for mounting bolts.
Quality Assurance and Warranty
Dorman manufactures the W79985 wheel cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction provides durability under typical operating conditions. While specific warranty details may vary, Dorman products generally include coverage against defects in material and workmanship to support reliable vehicle operation.
| Brand | Dorman |
|---|---|
| Part Number | W79985 |
| Bleeder Screw Cap Included | No |
| Bleeder Screw Included | Yes |
| Bore Diameter | 0.875 |
| 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 15 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1980 | Ford | Pinto | Rear | Fits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder. |
| 1980 | Mercury | Bobcat | Rear | Fits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder. |
| 1979 | Ford | Pinto | Rear | Fits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder. |
| 1979 | Mercury | Bobcat | Rear | Fits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder. |
| 1978 | Ford | Pinto | Rear | Fits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder. |
| 1978 | Mercury | Bobcat | Rear | Fits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder. |
| 1977 | Ford | Pinto | Rear | Fits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder. |
| 1977 | Mercury | Bobcat | Rear | Fits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder. |
| 1976 | Ford | Pinto | Rear | Fits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder. |
| 1976 | Mercury | Bobcat | Rear | Fits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder. |
| 1975 | Ford | Pinto | Rear | Fits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder. |
| 1975 | Mercury | Bobcat | Rear | Fits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder. |
| 1974 | Ford | Pinto | Rear | Fits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder. |
| 1973 | Ford | Pinto | Rear | Bore: 7/8 In.; Wagon; Front Disc Brakes |
| 1972 | Ford | Pinto | Rear | Bore: 7/8 In.; Wagon; Front Disc Brakes |
* 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.