/live/media/DB/DB_W120343_Fro.jpg)
OE Quality
60-Day Returns
Dorman W120343 Drum Brake Wheel Cylinder - Rear
Reliable Drum Brake Wheel Cylinder for Nissan and Infiniti Vehicles
The Dorman W120343 drum brake wheel cylinder is engineered to restore proper braking function for select Nissan and Infiniti models. Designed with precision, this component ensures consistent hydraulic pressure for safe and effective braking performance.
- 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
- Durable aluminum casting material for corrosion resistance
- Bore diameter of 0.813 inches for accurate fitment
- Package contains one drum brake wheel cylinder
Technical Details and Compatibility
The Dorman W120343 wheel cylinder is specifically designed for front drum brake applications on Nissan D21, Frontier, Pathfinder, Pickup, and Infiniti QX4 models. Its aluminum casting provides a lightweight yet durable construction that resists corrosion and wear. The bore diameter of 0.813 inches ensures proper piston movement within the cylinder, maintaining hydraulic pressure for effective braking. The included bleeder screw simplifies brake fluid bleeding during installation or maintenance, although a bleeder screw cap is not included. Thread specifications of M10 x 1.0 with a 1.0 pitch match the brake line inlet for secure connections.
Common Applications and Problem Resolution
- Restores braking performance when wheel cylinder leaks brake fluid
- Eliminates spongy or soft brake pedal caused by faulty wheel cylinders
- Replaces seized or sticking pistons that impair brake function
- Addresses uneven brake wear due to inconsistent hydraulic pressure
- Prevents brake fluid contamination and corrosion within the drum brake system
Installation Notes and Tips
When installing the Dorman W120343 drum brake wheel cylinder, ensure the brake system is properly bled using the included bleeder screw to remove air pockets. Verify thread compatibility with the brake line inlet (M10 x 1.0) before installation. Use appropriate brake fluid and follow manufacturer torque specifications to avoid damage. Inspect related brake components such as shoes and drums for wear during replacement to maintain overall braking system integrity.
Quality Assurance and Warranty
Dorman manufactures the W120343 wheel cylinder to meet or exceed OEM specifications for fit, form, and function. The aluminum casting material offers corrosion resistance for extended service life. This part is backed by Dorman's standard warranty coverage, providing confidence in its durability and performance for Nissan and Infiniti drum brake systems.
| Brand | Dorman |
|---|---|
| Part Number | W120343 |
| Bleeder Screw Cap Included | No |
| Bleeder Screw Included | Yes |
| Bore Diameter | 0.813 |
| Brake Component Inlet Thread Size | M10 X 1.0 |
| Brake Line Inlet Thread Diameter | 10 |
| Casting Material | Aluminum |
| Package Contents | 1 Drum Brake Wheel Cylinder |
| Thread Pitch | 1.0 |
This part fits 27 vehicles. Search below:
| Year | Make | Model | Drive Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2014 | Nissan | Frontier | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | |||
| 2013 | Nissan | Frontier | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | |||
| 2012 | Nissan | Frontier | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | |||
| 2011 | Nissan | Frontier | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | |||
| 2002 | Nissan | Frontier | 3.3L | V6 | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | |
| 2001 | Nissan | Frontier | 3.3L | V6 | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | |
| 2000 | Nissan | Frontier | 4WD | 2.4L | L4 | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. |
| 2000 | Nissan | Frontier | 3.3L | V6 | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | |
| 1999 | Nissan | Frontier | 4WD | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | ||
| 1998 | INFINITI | QX4 | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | |||
| 1998 | Nissan | Frontier | 4WD | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | ||
| 1998 | Nissan | Pathfinder | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | |||
| 1997 | INFINITI | QX4 | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | |||
| 1997 | Nissan | Pathfinder | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | |||
| 1997 | Nissan | Pickup | 4WD | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | ||
| 1996 | Nissan | Pathfinder | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | |||
| 1996 | Nissan | Pickup | 4WD | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | ||
| 1995 | Nissan | Pickup | 4WD | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | ||
| 1994 | Nissan | D21 | 4WD | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | ||
| 1993 | Nissan | D21 | 4WD | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | ||
| 1993 | Nissan | Pickup | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | |||
| 1992 | Nissan | D21 | 4WD | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | ||
| 1992 | Nissan | Pickup | Rear | Bore: 13/16 In.; w/4 Wheel Drive (4WD) | |||
| 1991 | Nissan | D21 | 4WD | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | ||
| 1991 | Nissan | Pickup | Rear | Bore: 13/16 In.; w/4 Wheel Drive (4WD) | |||
| 1990 | Nissan | D21 | 4WD | Rear | Compatible with drum brake wheel cylinders with a 13/16 inch bore size. | ||
| 1990 | Nissan | Pickup | Rear | Bore: 13/16 In.; w/4 Wheel Drive (4WD) |
* 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.