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Dorman W37999 Drum Brake Wheel Cylinder - Rear
Reliable Drum Brake Wheel Cylinder for Ford Aerostar
The Dorman W37999 drum brake wheel cylinder is designed specifically for Ford Aerostar models, providing dependable brake hydraulics performance. Crafted from durable cast iron, this wheel cylinder ensures consistent braking pressure and long-lasting service.
Key Features of Dorman W37999 Drum Brake Wheel Cylinder
- Constructed from cast iron for strength and durability
- Bore diameter of 0.938 inches for precise fitment
- Includes bleeder screw for easy brake system maintenance
- 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
Detailed Description of the Dorman W37999 Wheel Cylinder
This drum brake wheel cylinder is engineered to meet the specifications required by Ford Aerostar vehicles. The cast iron casting material provides resistance to wear and corrosion, ensuring reliable brake hydraulics operation. The included bleeder screw allows for efficient removal of air from the brake system, which is essential for maintaining proper brake function. With a bore diameter of 0.938 inches and a brake component inlet thread size of 3/8-24 inches, this wheel cylinder fits precisely within the drum brake assembly, contributing to consistent braking performance.
Common Applications and Issues Addressed
- Replacement for leaking or damaged drum brake wheel cylinders on Ford Aerostar
- Resolves brake fluid leaks that cause reduced braking efficiency
- Addresses uneven brake pressure leading to pulling or dragging brakes
- Fixes brake pedal softness caused by internal cylinder wear
- Restores proper brake hydraulics function for safer vehicle operation
Installation Notes and Tips
When installing the Dorman W37999 drum brake wheel cylinder, ensure the brake system is fully depressurized and the vehicle is securely lifted. Use the included bleeder screw to properly bleed the brake system after installation to remove any trapped air. Verify that the thread sizes match the existing brake lines and fittings to avoid leaks. It is recommended to inspect related brake components such as shoes and drums during installation for optimal performance.
Quality Assurance and Warranty Information
Dorman manufactures the W37999 wheel cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction is tested for durability and resistance to corrosion. This part is backed by Dorman's limited warranty, providing coverage against defects in material and workmanship under normal use.
| Brand | Dorman |
| Part Number | W37999 |
| 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 5 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1997 | Ford | Aerostar | Rear | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1996 | Ford | Aerostar | Rear | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1995 | Ford | Aerostar | Rear | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1994 | Ford | Aerostar | Rear | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1993 | Ford | Aerostar | Rear | 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.