HomeBrake > Brake HydraulicsDorman W37698 Drum Brake Wheel Cylinder - Rear Right
Part #: W37698

Dorman W37698 Drum Brake Wheel Cylinder - Rear Right

Rear Right
⚙️ 16 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford and Mercury, Cougar and Thunderbird
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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.

BrandDorman
Part NumberW37698
Bleeder Screw IncludedYes
Bleeder Screw Cap IncludedNo
Casting MaterialCast iron
Bore Diameter0.75
Brake Component Inlet Thread Size3/8-24 in
Package Contents1 drum brake wheel cylinder
Thread Diameter3/8

This part fits 16 vehicles. Search below:

YearMakeModelPositionNotes
1989FordThunderbirdRear RightFitment: 10 In. Brakes with a 3/4 In. Bore.
1989MercuryCougarRear RightFitment: 10 In. Brakes with a 3/4 In. Bore.
1988FordCougarRear RightFitment: 10 In. Brakes with a 3/4 In. Bore.
1988FordThunderbirdRear RightFitment: 10 In. Brakes with a 3/4 In. Bore.
1988MercuryCougarRear RightFitment: 10 In. Brakes with a 3/4 In. Bore.
1987FordCougarRear RightFitment: 10 In. Brakes with a 3/4 In. Bore.
1987FordThunderbirdRear RightFitment: 10 In. Brakes with a 3/4 In. Bore.
1987MercuryCougarRear RightFitment: 10 In. Brakes with a 3/4 In. Bore.
1986FordCougarRear RightFitment: 10 In. Brakes with a 3/4 In. Bore.
1986FordThunderbirdRear RightBore: 3/4 In., 10 In. x 1.75 In. Drum Brake Wheel Cylinder Fitment
1986MercuryCougarRear RightFitment: 10 In. Brakes with a 3/4 In. Bore.
1985FordCougarRear RightFitment: 10 In. Brakes with a 3/4 In. Bore.
1985FordThunderbirdRear RightBore: 3/4 In., 10 In. x 1.75 In. Drum Brake Wheel Cylinder Fitment
1985MercuryCougarRear RightFitment: 10 In. Brakes with a 3/4 In. Bore.
1984MercuryCougarRear RightFitment: 10 In. Brakes with a 3/4 In. Bore.
1983MercuryCougarRear RightFitment: 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:

134.6103818E270203769833935784-34038E5SZ2261AF113887W-81038W906589WC13935

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.