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Dorman W37698 Drum Brake Wheel Cylinder - Rear Right
Reliable Drum Brake Wheel Cylinder for Ford Cougar and Mercury Thunderbird
The Dorman W37698 drum brake wheel cylinder is engineered to restore proper brake function for select Ford and Mercury vehicles. Designed with durable cast iron construction and a precise 0.75-inch bore diameter, this wheel cylinder ensures consistent hydraulic pressure for safe braking performance.
- Includes bleeder screw for easy brake system bleeding
- Constructed from cast iron for strength and durability
- 0.75-inch bore diameter for accurate hydraulic operation
- Brake component inlet thread size of 3/8-24 inches
- Compatible with Ford Cougar and Mercury Thunderbird models
- Thread diameter of 3/8 inch for secure fitment
Durable Construction and Precise Specifications
The Dorman W37698 wheel cylinder features a cast iron casting material that provides long-lasting resistance to wear and corrosion. Its 0.75-inch bore diameter is designed to deliver consistent hydraulic pressure to the drum brake shoes, ensuring reliable stopping power. The included bleeder screw simplifies maintenance by allowing trapped air to be released from the brake system, improving brake responsiveness. With a brake component inlet thread size of 3/8-24 inches and a thread diameter of 3/8 inch, this wheel cylinder offers a secure and proper fit for the specified vehicle models.
Compatible Vehicles and Applications
This drum brake wheel cylinder is compatible with the following vehicles:
- Ford Cougar
- Mercury Thunderbird
It is designed to replace worn or leaking wheel cylinders in the rear drum brake assemblies of these models, restoring proper hydraulic function and brake performance.
Common Brake Issues Addressed
- Leaking brake fluid from the wheel cylinder
- Reduced braking efficiency due to worn or seized cylinder pistons
- Spongy or soft brake pedal caused by air in the brake lines
- Uneven brake shoe wear resulting from inconsistent hydraulic pressure
- Brake drag or sticking caused by faulty wheel cylinder operation
Installation Notes and Tips
When installing the Dorman W37698 wheel cylinder, ensure the brake system is properly bled using the included bleeder screw to remove any air pockets. Verify that the thread sizes match the vehicle’s brake line fittings to avoid leaks. Inspect brake shoes and hardware for wear and replace as necessary to maintain optimal brake performance. Follow manufacturer torque specifications for all fasteners to ensure a secure installation.
Quality Assurance and Warranty
Dorman manufactures this wheel cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction provides durability under normal operating conditions. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation for exact warranty terms.
| Brand | Dorman |
| Part Number | W37698 |
| Bleeder Screw Included | Yes |
| Bleeder Screw Cap Included | No |
| Casting Material | Cast iron |
| Bore Diameter | 0.75 |
| Brake Component Inlet Thread Size | 3/8-24 in |
| Package Contents | 1 drum brake wheel cylinder |
| Thread Diameter | 3/8 |
This part fits 16 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1989 | Ford | Thunderbird | Rear Right | Fitment: 10 In. Brakes with a 3/4 In. Bore. |
| 1989 | Mercury | Cougar | Rear Right | Fitment: 10 In. Brakes with a 3/4 In. Bore. |
| 1988 | Ford | Cougar | Rear Right | Fitment: 10 In. Brakes with a 3/4 In. Bore. |
| 1988 | Ford | Thunderbird | Rear Right | Fitment: 10 In. Brakes with a 3/4 In. Bore. |
| 1988 | Mercury | Cougar | Rear Right | Fitment: 10 In. Brakes with a 3/4 In. Bore. |
| 1987 | Ford | Cougar | Rear Right | Fitment: 10 In. Brakes with a 3/4 In. Bore. |
| 1987 | Ford | Thunderbird | Rear Right | Fitment: 10 In. Brakes with a 3/4 In. Bore. |
| 1987 | Mercury | Cougar | Rear Right | Fitment: 10 In. Brakes with a 3/4 In. Bore. |
| 1986 | Ford | Cougar | Rear Right | Fitment: 10 In. Brakes with a 3/4 In. Bore. |
| 1986 | Ford | Thunderbird | Rear Right | Bore: 3/4 In., 10 In. x 1.75 In. Drum Brake Wheel Cylinder Fitment |
| 1986 | Mercury | Cougar | Rear Right | Fitment: 10 In. Brakes with a 3/4 In. Bore. |
| 1985 | Ford | Cougar | Rear Right | Fitment: 10 In. Brakes with a 3/4 In. Bore. |
| 1985 | Ford | Thunderbird | Rear Right | Bore: 3/4 In., 10 In. x 1.75 In. Drum Brake Wheel Cylinder Fitment |
| 1985 | Mercury | Cougar | Rear Right | Fitment: 10 In. Brakes with a 3/4 In. Bore. |
| 1984 | Mercury | Cougar | Rear Right | Fitment: 10 In. Brakes with a 3/4 In. Bore. |
| 1983 | Mercury | Cougar | Rear Right | Fitment: 10 In. Brakes with a 3/4 In. Bore. |
* 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.