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Dorman W37842 Drum Brake Wheel Cylinder - Rear
Reliable Drum Brake Wheel Cylinder for Toyota 4Runner and T100
The Dorman W37842 drum brake wheel cylinder is engineered to restore proper brake function in Toyota 4Runner and T100 models. Designed with durable cast iron construction and precise specifications, this wheel cylinder ensures consistent hydraulic pressure for safe braking performance.
Key Features of Dorman W37842 Drum Brake Wheel Cylinder
- Includes bleeder screw for easy brake system bleeding
- Brake line inlet thread diameter: 10 mm
- Brake component inlet thread size: M10 x 1.0 with 1.0 thread pitch
- Cast iron casting material for strength and durability
- Bore diameter of 0.938 inches for accurate fitment
- Package contains one drum brake wheel cylinder
Detailed Product Description
The Dorman W37842 drum brake wheel cylinder is specifically designed for Toyota 4Runner and T100 vehicles, providing a direct replacement for worn or damaged brake hydraulics components. Constructed from cast iron, this wheel cylinder offers reliable resistance to wear and corrosion. The included bleeder screw simplifies maintenance by allowing efficient removal of air from the brake lines, ensuring optimal hydraulic pressure. The precise bore diameter of 0.938 inches and M10 x 1.0 brake line inlet thread size guarantee compatibility with the original brake system specifications.
Common Issues Addressed by This Wheel Cylinder
- Brake fluid leaks causing reduced braking efficiency
- Spongy or soft brake pedal feel due to air in brake lines
- Uneven brake shoe wear from inconsistent hydraulic pressure
- Brake drag or sticking caused by faulty wheel cylinder pistons
- Corrosion or damage to original wheel cylinder components
Installation Notes and Tips
- Ensure the brake system is fully depressurized before removal
- Use the included bleeder screw to properly bleed the brake system after installation
- Verify thread sizes and bore diameter match original equipment specifications
- Inspect brake shoes and hardware for wear during installation
- Follow manufacturer torque specifications for brake line fittings
Quality Assurance and Warranty Information
Dorman manufactures the W37842 drum brake wheel cylinder to meet or exceed OEM standards for fit, form, and function. The cast iron construction provides durability under demanding conditions. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship to ensure customer confidence in product reliability.
| Brand | Dorman |
| Part Number | W37842 |
| Bleeder Screw Cap Included | No |
| Bleeder Screw Included | Yes |
| Bore Diameter | 0.938 |
| Brake Component Inlet Thread Size | M10 X 1.0 |
| Brake Line Inlet Thread Diameter | 10 |
| Casting Material | Cast Iron |
| Package Contents | 1 Drum Brake Wheel Cylinder |
| Thread Pitch | 1.0 |
This part fits 20 vehicles. Search below:
| Year | Make | Model | Submodel | Drive Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2000 | Toyota | 4Runner | Rear | Bore: 15/16 In. with 15 In. Wheels | ||
| 1999 | Toyota | 4Runner | Rear | Bore: 15/16 In. with 15 In. Wheels | ||
| 1998 | Toyota | 4Runner | Rear | Bore: 15/16 In. with 15 In. Wheels | ||
| 1998 | Toyota | T100 | Rear | Fits 15/16" bore size drum brakes on multiple vehicle models. | ||
| 1997 | Toyota | 4Runner | Rear | Bore: 15/16 In. with 15 In. Wheels | ||
| 1997 | Toyota | T100 | Rear | Fits 15/16" bore size drum brakes on multiple vehicle models. | ||
| 1996 | Toyota | 4Runner | RWD | Rear | Fits 15/16" bore size drum brakes on multiple vehicle models. | |
| 1996 | Toyota | 4Runner | 4WD | Rear | Bore: 15/16 In. with 15 In. Wheels | |
| 1996 | Toyota | T100 | Rear | Fits 15/16" bore size drum brakes on multiple vehicle models. | ||
| 1995 | Toyota | 4Runner | Rear | Fits 15/16" bore size drum brakes on multiple vehicle models. | ||
| 1995 | Toyota | T100 | 4WD | Rear | Fits 15/16" bore size drum brakes on multiple vehicle models. | |
| 1995 | Toyota | T100 | Base | Rear | Fits 15/16" bore size drum brakes on multiple vehicle models. | |
| 1995 | Toyota | T100 | RWD | Rear | 15/16 inch bore for DLX submodel Drum Brake Wheel Cylinder | |
| 1995 | Toyota | T100 | SR5 | RWD | Rear | Fits 15/16" bore size drum brakes on multiple vehicle models. |
| 1994 | Toyota | 4Runner | Rear | Fits 15/16" bore size drum brakes on multiple vehicle models. | ||
| 1994 | Toyota | T100 | 4WD | Rear | Fits 15/16" bore size drum brakes on multiple vehicle models. | |
| 1993 | Toyota | 4Runner | Rear | Fits 15/16" bore size drum brakes on multiple vehicle models. | ||
| 1993 | Toyota | T100 | 4WD | Rear | Fits 15/16" bore size drum brakes on multiple vehicle models. | |
| 1992 | Toyota | 4Runner | Rear | Fits 15/16" bore size drum brakes on multiple vehicle models. | ||
| 1989 | Toyota | 4Runner | 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.