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Dorman W40951 Drum Brake Wheel Cylinder - Front Left or Front Right
Reliable Drum Brake Wheel Cylinder for Ford, Jeep, and Mercury
The Dorman W40951 drum brake wheel cylinder is engineered to restore proper braking function in select Ford, Jeep, and Mercury vehicles. Designed with durable cast iron and precise dimensions, this component ensures consistent hydraulic pressure for safe stopping performance.
- Includes bleeder screw for easy brake system bleeding
- Constructed from cast iron for strength and durability
- 1.125 inch bore diameter for accurate fit and function
- Brake component inlet thread size of 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 W40951 wheel cylinder features a cast iron casting material that provides long-lasting resistance to wear and corrosion. Its 1.125 inch bore diameter is designed to match original equipment specifications, ensuring proper hydraulic pressure within the drum brake system. The included bleeder screw simplifies maintenance by allowing trapped air to be released, which is critical for maintaining brake responsiveness. The 3/8-24 inch brake component inlet thread size and 3/8 inch thread diameter provide compatibility with factory brake lines and fittings.
Compatible Vehicles and Applications
This drum brake wheel cylinder is compatible with various Ford, Jeep, and Mercury models, including the Jeep CJ5 and CJ7, Ford Mustang, Mercury Cougar, and Mercury Montego. The part number W40951 is specifically designed to meet the braking system requirements of these vehicles, making it a suitable replacement for worn or leaking wheel cylinders in drum brake assemblies.
Common Issues Addressed by This Wheel Cylinder
- Brake fluid leaks from worn or damaged wheel cylinders
- Reduced braking efficiency due to loss of hydraulic pressure
- Spongy or soft brake pedal feel caused by air in brake lines
- Uneven brake shoe wear resulting from malfunctioning wheel cylinders
- Brake drag or sticking caused by seized cylinder pistons
Installation Notes and Tips
When installing the Dorman W40951 drum brake wheel cylinder, ensure the brake system is properly bled using the included bleeder screw to remove any air pockets. Verify that the brake lines and fittings match the 3/8-24 inch inlet thread size and 3/8 inch thread diameter for a secure connection. Inspect brake shoes and hardware for wear and replace as necessary to maintain optimal braking performance. Follow vehicle-specific service manual instructions for torque specifications and safety precautions.
Quality Assurance and Warranty Information
Dorman manufactures the W40951 wheel cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction and precise machining contribute to reliable performance and durability. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Refer to the product packaging or Dorman’s official documentation for exact warranty terms.
| Brand | Dorman |
| Part Number | W40951 |
| Bleeder Screw Cap Included | No |
| Bleeder Screw Included | Yes |
| Bore Diameter | 1.125 |
| 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 38 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1977 | Jeep | CJ5 | Front Left | Compatible with drum brake systems with a 1.125" bore size. | ||
| 1977 | Jeep | CJ7 | Front Left | Compatible with drum brake systems with a 1.125" bore size. | ||
| 1976 | Jeep | CJ5 | Front Left | Compatible with drum brake systems with a 1.125" bore size. | ||
| 1976 | Jeep | CJ7 | Front Left | Compatible with drum brake systems with a 1.125" bore size. | ||
| 1975 | Jeep | CJ5 | Front Left | Compatible with drum brake systems with a 1.125" bore size. | ||
| 1974 | Jeep | CJ5 | Front Left | Compatible with drum brake systems with a 1.125" bore size. | ||
| 1973 | Ford | Mustang | Front Left | Compatible with drum brake systems with a 1.125" bore size. | ||
| 1972 | Ford | Mustang | Front Left | Compatible with drum brake systems with a 1.125" bore size. | ||
| 1972 | Mercury | Cougar | Front Left | Compatible with drum brake systems with a 1.125" bore size. | ||
| 1971 | Ford | Mustang | Front Left | Compatible with drum brake systems with a 1.125" bore size. | ||
| 1971 | Mercury | Cougar | Front Left | Compatible with drum brake systems with a 1.125" bore size. | ||
| 1971 | Mercury | Montego | Front Left | Compatible with drum brake systems with a 1.125" bore size. | ||
| 1970 | Ford | Mustang | 4.1L | L6 | Front Left | Compatible with drum brake systems with a 1.125" bore size. |
| 1970 | Ford | Mustang | 5.0L | V8 | Front Left | Compatible with drum brake systems with a 1.125" bore size. |
| 1970 | Ford | Mustang | Front Left | Compatible with drum brake systems with a 1.125" bore size. | ||
| 1970 | Mercury | Cougar | Front Left | Compatible with drum brake systems with a 1.125" bore size. | ||
| 1970 | Mercury | Montego | Front Left | Compatible with drum brake systems with a 1.125" bore size. | ||
| 1969 | Ford | Mustang | 4.1L | L6 | Front Left | Compatible with drum brake systems with a 1.125" bore size. |
| 1969 | Ford | Mustang | 5.0L | V8 | Front Left | Compatible with drum brake systems with a 1.125" bore size. |
| 1969 | Ford | Mustang | Front Left | Compatible with drum brake systems with a 1.125" bore size. | ||
| 1969 | Mercury | Montego | 4.1L | L6 | Front Left | Bore: 1.125 In.; Sedan; Coupe |
| 1969 | Mercury | Montego | 5.0L | V8 | Front Left | Bore: 1.125 In.; Sedan; Coupe |
| 1969 | Mercury | Montego | Front Left | Bore: 1.125 In.; Sedan; Coupe | ||
| 1968 | Ford | Mustang | 5.0L | V8 | Front Left | Compatible with drum brake systems with a 1.125" bore size. |
| 1968 | Ford | Mustang | 4.7L | V8 | Front Left | Compatible with drum brake systems with a 1.125" bore size. |
| 1968 | Ford | Mustang | 7.0L | V8 | Front Left | Compatible with drum brake systems with a 1.125" bore size. |
| 1968 | Mercury | Montego | 7.0L | V8 | Front Left | Compatible with drum brake systems with a 1.125" bore size. |
| 1968 | Mercury | Montego | 5.0L | V8 | Front Left | Compatible with drum brake systems with a 1.125" bore size. |
| 1968 | Mercury | Montego | Front Left | Compatible with drum brake systems with a 1.125" bore size. | ||
| 1968 | Mercury | Montego | 3.3L | L6 | Front Left | Compatible with drum brake systems with a 1.125" bore size. |
| 1968 | Mercury | Montego | 4.7L | V8 | Front Left | Compatible with drum brake systems with a 1.125" bore size. |
| 1967 | Ford | Mustang | 4.7L | V8 | Front Left | Compatible with drum brake systems with a 1.125" bore size. |
| 1967 | Ford | Mustang | 7.0L | V8 | Front Left | Compatible with drum brake systems with a 1.125" bore size. |
| 1966 | Ford | Mustang | 4.7L | V8 | Front Left | Compatible with drum brake systems with a 1.125" bore size. |
| 1965 | Ford | Mustang | 4.3L | V8 | Front Left | Compatible with drum brake systems with a 1.125" bore size. |
| 1965 | Ford | Mustang | 4.7L | V8 | Front Left | Compatible with drum brake systems with a 1.125" bore size. |
| 1964 | Ford | Mustang | 4.3L | V8 | Front Left | Compatible with drum brake systems with a 1.125" bore size. |
| 1964 | Ford | Mustang | 4.7L | V8 | Front Left | Compatible with drum brake systems with a 1.125" 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.