Dorman W37625 Drum Brake Wheel Cylinder - Rear

Name: Dorman W37625 Drum Brake Wheel Cylinder - Rear
Brand: Dorman
SKU: BKKX-W37625
Price: 25.29 USD
Availability: InStock

Rear

170 vehicles fit this part

Select your vehicle to confirm fitment

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OE Direct Replacement — Bolt-on fit, no modifications needed

Fitment: Chevrolet, GMC, Oldsmobile, Pontiac, and Buick, S10, S10 Blazer, S15 Jimmy, Sonoma, Syclone, Bravada, S15, Camaro, Monte Carlo, Cutlass Supreme, Firebird, Regal, El Camino, Caballero, Grand Prix, Cutlass, Bonneville, Cutlass Calais, Malibu, Cutlass Cruiser, Century, Grand LeMans, LeMans, and Grand Am

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Not what you need? See all Drum Brake Wheel Cylinder options

Reliable Drum Brake Wheel Cylinder for Select GM Vehicles

The Dorman W37625 drum brake wheel cylinder is engineered to restore proper braking function for a range of Buick, Chevrolet, GMC, Oldsmobile, and Pontiac models. Designed with durable cast iron construction and a 0.75-inch bore diameter, this wheel cylinder ensures consistent hydraulic pressure for safe and effective braking performance.

Includes bleeder screw for easy brake system bleeding
Constructed from cast iron for strength and durability
0.75-inch bore diameter optimized for compatible brake systems
Brake component inlet thread size of 3/8-24 inches
Thread diameter of 3/8 inch for secure fitment
Package contains one drum brake wheel cylinder

Durable Construction and Precise Specifications

The Dorman W37625 wheel cylinder features a cast iron casting material that provides resistance to wear and corrosion, essential for maintaining brake system integrity over time. Its 0.75-inch bore diameter is designed to match the hydraulic requirements of drum brake assemblies on vehicles such as the Chevrolet Camaro, Pontiac Firebird, and Buick LeMans. The included bleeder screw simplifies maintenance by allowing trapped air to be released from the brake lines, improving brake responsiveness. Thread specifications of 3/8-24 inches for the brake component inlet and a 3/8-inch thread diameter ensure compatibility with original equipment brake fittings.

Compatible With Specific Buick, Chevrolet, GMC, Oldsmobile, and Pontiac Models

This drum brake wheel cylinder is compatible with a variety of GM vehicles, including but not limited to the Buick Bonneville, Chevrolet S10 Blazer, GMC Sonoma, Oldsmobile Cutlass Supreme, and Pontiac Grand Prix. The part number W37625 is designed to meet the exact fitment requirements for these models, making it a suitable replacement part for brake hydraulics maintenance and repair.

Common Brake Issues Addressed by This Wheel Cylinder

Brake fluid leaks from worn or damaged wheel cylinders
Reduced braking efficiency due to cylinder bore wear
Spongy brake pedal caused by air in the brake lines
Uneven brake shoe application leading to premature wear
Brake drag or sticking caused by faulty wheel cylinder pistons

Installation Notes and Tips

Ensure the brake system is fully depressurized before removal
Use the included bleeder screw to properly bleed air from the brake lines after installation
Inspect brake shoes and hardware for wear during replacement
Apply brake fluid compatible lubricant to threads to prevent seizing
Verify thread sizes (3/8-24 inlet and 3/8 diameter) for proper fitment

Quality Assurance and Warranty Information

Dorman manufactures the W37625 wheel cylinder to meet or exceed OEM specifications for durability and performance. The cast iron construction and precise machining contribute to long service life under normal operating conditions. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship to provide confidence in product reliability.

Brand	Dorman
Part Number	W37625
Bleeder Screw Cap Included	No
Bleeder Screw Included	Yes
Bore Diameter	0.75
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 170 vehicles. Search below:

Year	Make	Model	Drive Type	Position	Notes
1991	Chevrolet	S10		Rear	Fits vehicles with a 3/4 inch bore size.
1991	Chevrolet	S10 Blazer		Rear	Fits vehicles with a 3/4 inch bore size.
1991	GMC	S15 Jimmy		Rear	Fits vehicles with a 3/4 inch bore size.
1991	GMC	Sonoma		Rear	Fits vehicles with a 3/4 inch bore size.
1991	Oldsmobile	Bravada		Rear	Fits vehicles with a 3/4 inch bore size.
1990	Chevrolet	S10		Rear	Fits vehicles with a 3/4 inch bore size.
1990	Chevrolet	S10 Blazer		Rear	Fits vehicles with a 3/4 inch bore size.
1990	GMC	S15		Rear	Fits vehicles with a 3/4 inch bore size.
1990	GMC	S15 Jimmy		Rear	Fits vehicles with a 3/4 inch bore size.
1989	Chevrolet	S10		Rear	Fits vehicles with a 3/4 inch bore size.
1989	Chevrolet	S10 Blazer		Rear	Fits vehicles with a 3/4 inch bore size.
1989	GMC	S15		Rear	Fits vehicles with a 3/4 inch bore size.
1989	GMC	S15 Jimmy		Rear	Fits vehicles with a 3/4 inch bore size.
1988	Chevrolet	Camaro		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1988	Chevrolet	Monte Carlo		Rear	Fits vehicles with a 3/4 inch bore size.
1988	Chevrolet	S10	RWD	Rear	Fits vehicles with a 3/4 inch bore size.
1988	Chevrolet	S10	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1988	Chevrolet	S10 Blazer	RWD	Rear	Bore: 3/4 In.; w/Power Brakes
1988	Chevrolet	S10 Blazer	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1988	GMC	S15	RWD	Rear	Fits vehicles with a 3/4 inch bore size.
1988	GMC	S15	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1988	GMC	S15 Jimmy	RWD	Rear	Bore: 3/4 In.; w/Power Brakes
1988	GMC	S15 Jimmy	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1988	Oldsmobile	Cutlass Supreme	RWD	Rear	Fits vehicles with a 3/4 inch bore size.
1988	Pontiac	Firebird		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1987	Buick	Regal		Rear	Fits vehicles with a 3/4 inch bore size.
1987	Chevrolet	Camaro		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1987	Chevrolet	El Camino		Rear	Fits vehicles with a 3/4 inch bore size.
1987	Chevrolet	Monte Carlo		Rear	Fits vehicles with a 3/4 inch bore size.
1987	Chevrolet	S10	RWD	Rear	Fits vehicles with a 3/4 inch bore size.
1987	Chevrolet	S10	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1987	Chevrolet	S10 Blazer	RWD	Rear	Bore: 3/4 In.; w/Power Brakes
1987	Chevrolet	S10 Blazer	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1987	GMC	S15	RWD	Rear	Fits vehicles with a 3/4 inch bore size.
1987	GMC	S15	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1987	GMC	S15 Jimmy	RWD	Rear	Bore: 3/4 In.; w/Power Brakes
1987	GMC	S15 Jimmy	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1987	Oldsmobile	Cutlass Supreme		Rear	Fits vehicles with a 3/4 inch bore size.
1987	Pontiac	Firebird		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1987	Pontiac	Grand Prix		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1986	Buick	Regal		Rear	Fits vehicles with a 3/4 inch bore size.
1986	Chevrolet	Camaro		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1986	Chevrolet	El Camino		Rear	Fits vehicles with a 3/4 inch bore size.
1986	Chevrolet	Monte Carlo		Rear	Fits vehicles with a 3/4 inch bore size.
1986	Chevrolet	S10	RWD	Rear	Fits vehicles with a 3/4 inch bore size.
1986	Chevrolet	S10	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1986	Chevrolet	S10 Blazer	RWD	Rear	Bore: 3/4 In.; w/Power Brakes
1986	Chevrolet	S10 Blazer	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1986	GMC	S15	RWD	Rear	Fits vehicles with a 3/4 inch bore size.
1986	GMC	S15	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1986	GMC	S15 Jimmy	RWD	Rear	Bore: 3/4 In.; w/Power Brakes
1986	GMC	S15 Jimmy	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1986	Oldsmobile	Cutlass		Rear	Fits vehicles with a 3/4 inch bore size.
1986	Oldsmobile	Cutlass Supreme		Rear	Fits vehicles with a 3/4 inch bore size.
1986	Pontiac	Bonneville		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1986	Pontiac	Firebird		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1986	Pontiac	Grand Prix		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1985	Buick	Regal		Rear	Fits vehicles with a 3/4 inch bore size.
1985	Chevrolet	Camaro		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1985	Chevrolet	El Camino		Rear	Fits vehicles with a 3/4 inch bore size.
1985	Chevrolet	Monte Carlo		Rear	Fits vehicles with a 3/4 inch bore size.
1985	Chevrolet	S10	RWD	Rear	Fits vehicles with a 3/4 inch bore size.
1985	Chevrolet	S10	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1985	Chevrolet	S10 Blazer	RWD	Rear	Bore: 3/4 In.; w/Power Brakes
1985	Chevrolet	S10 Blazer	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1985	GMC	S15	RWD	Rear	Fits vehicles with a 3/4 inch bore size.
1985	GMC	S15	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1985	GMC	S15 Jimmy	RWD	Rear	Bore: 3/4 In.; w/Power Brakes
1985	GMC	S15 Jimmy	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1985	Oldsmobile	Cutlass		Rear	Fits vehicles with a 3/4 inch bore size.
1985	Oldsmobile	Cutlass Supreme		Rear	Fits vehicles with a 3/4 inch bore size.
1985	Pontiac	Bonneville		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1985	Pontiac	Firebird		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1985	Pontiac	Grand Prix		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1984	Buick	Regal		Rear	Fits vehicles with a 3/4 inch bore size.
1984	Chevrolet	Camaro		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1984	Chevrolet	El Camino		Rear	Fits vehicles with a 3/4 inch bore size.
1984	Chevrolet	Monte Carlo		Rear	Fits vehicles with a 3/4 inch bore size.
1984	Chevrolet	S10	RWD	Rear	Fits vehicles with a 3/4 inch bore size.
1984	Chevrolet	S10	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1984	Chevrolet	S10 Blazer	RWD	Rear	Bore: 3/4 In.; w/Power Brakes
1984	Chevrolet	S10 Blazer	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1984	GMC	S15	RWD	Rear	Fits vehicles with a 3/4 inch bore size.
1984	GMC	S15	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1984	GMC	S15 Jimmy	RWD	Rear	Bore: 3/4 In.; w/Power Brakes
1984	GMC	S15 Jimmy	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1984	Oldsmobile	Cutlass Calais		Rear	Fits vehicles with a 3/4 inch bore size.
1984	Oldsmobile	Cutlass Supreme		Rear	Fits vehicles with a 3/4 inch bore size.
1984	Pontiac	Bonneville		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1984	Pontiac	Firebird		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1984	Pontiac	Grand Prix		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1983	Buick	Regal		Rear	Fits vehicles with a 3/4 inch bore size.
1983	Chevrolet	Camaro		Rear	Fits vehicles with a 3/4 inch bore size.
1983	Chevrolet	El Camino		Rear	Fits vehicles with a 3/4 inch bore size.
1983	Chevrolet	Malibu		Rear	Fits vehicles with a 3/4 inch bore size.
1983	Chevrolet	Monte Carlo		Rear	Fits vehicles with a 3/4 inch bore size.
1983	Chevrolet	S10	RWD	Rear	Fits vehicles with a 3/4 inch bore size.
1983	Chevrolet	S10	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1983	Chevrolet	S10 Blazer	RWD	Rear	Bore: 3/4 In.; w/Power Brakes
1983	Chevrolet	S10 Blazer	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1983	GMC	S15	RWD	Rear	Fits vehicles with a 3/4 inch bore size.
1983	GMC	S15	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1983	GMC	S15 Jimmy	RWD	Rear	Bore: 3/4 In.; w/Power Brakes
1983	GMC	S15 Jimmy	4WD	Rear	Fits vehicles with a 3/4 inch bore size.
1983	Oldsmobile	Cutlass Calais		Rear	Fits vehicles with a 3/4 inch bore size.
1983	Oldsmobile	Cutlass Cruiser		Rear	Fits vehicles with a 3/4 inch bore size.
1983	Oldsmobile	Cutlass Supreme		Rear	Fits vehicles with a 3/4 inch bore size.
1983	Pontiac	Bonneville		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1983	Pontiac	Firebird		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1983	Pontiac	Grand Prix		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1982	Buick	Regal		Rear	Fits vehicles with a 3/4 inch bore size.
1982	Chevrolet	Camaro		Rear	Fits vehicles with a 3/4 inch bore size.
1982	Chevrolet	El Camino		Rear	Fits vehicles with a 3/4 inch bore size.
1982	Chevrolet	Malibu		Rear	Fits vehicles with a 3/4 inch bore size.
1982	Chevrolet	Monte Carlo		Rear	Fits vehicles with a 3/4 inch bore size.
1982	Oldsmobile	Cutlass Calais		Rear	Fits vehicles with a 3/4 inch bore size.
1982	Oldsmobile	Cutlass Cruiser		Rear	Fits vehicles with a 3/4 inch bore size.
1982	Oldsmobile	Cutlass Supreme		Rear	Fits vehicles with a 3/4 inch bore size.
1982	Pontiac	Bonneville		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1982	Pontiac	Firebird		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1982	Pontiac	Grand Prix		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1981	Buick	Century		Rear	Fits vehicles with a 3/4 inch bore size.
1981	Buick	Regal		Rear	Fits vehicles with a 3/4 inch bore size.
1981	Chevrolet	El Camino		Rear	Fits vehicles with a 3/4 inch bore size.
1981	Chevrolet	Malibu		Rear	Fits vehicles with a 3/4 inch bore size.
1981	Chevrolet	Monte Carlo		Rear	Fits vehicles with a 3/4 inch bore size.
1981	Oldsmobile	Cutlass		Rear	Fits vehicles with a 3/4 inch bore size.
1981	Oldsmobile	Cutlass Calais		Rear	Fits vehicles with a 3/4 inch bore size.
1981	Oldsmobile	Cutlass Cruiser		Rear	Fits vehicles with a 3/4 inch bore size.
1981	Oldsmobile	Cutlass Supreme		Rear	Fits vehicles with a 3/4 inch bore size.
1981	Pontiac	Grand LeMans		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1981	Pontiac	Grand Prix		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1981	Pontiac	LeMans		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1980	Buick	Century		Rear	Fits vehicles with a 3/4 inch bore size.
1980	Buick	Regal		Rear	Fits vehicles with a 3/4 inch bore size.
1980	Chevrolet	El Camino		Rear	Fits vehicles with a 3/4 inch bore size.
1980	Chevrolet	Malibu		Rear	Fits vehicles with a 3/4 inch bore size.
1980	Chevrolet	Monte Carlo		Rear	Fits vehicles with a 3/4 inch bore size.
1980	Oldsmobile	Cutlass		Rear	Fits vehicles with a 3/4 inch bore size.
1980	Oldsmobile	Cutlass Calais		Rear	Fits vehicles with a 3/4 inch bore size.
1980	Oldsmobile	Cutlass Cruiser		Rear	Fits vehicles with a 3/4 inch bore size.
1980	Oldsmobile	Cutlass Supreme		Rear	Fits vehicles with a 3/4 inch bore size.
1980	Pontiac	Grand Am		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1980	Pontiac	Grand LeMans		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1980	Pontiac	Grand Prix		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1980	Pontiac	LeMans		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1979	Buick	Century		Rear	Fits vehicles with a 3/4 inch bore size.
1979	Buick	Regal		Rear	Fits vehicles with a 3/4 inch bore size.
1979	Chevrolet	El Camino		Rear	Fits vehicles with a 3/4 inch bore size.
1979	Chevrolet	Malibu		Rear	Fits vehicles with a 3/4 inch bore size.
1979	Chevrolet	Monte Carlo		Rear	Fits vehicles with a 3/4 inch bore size.
1979	Oldsmobile	Cutlass		Rear	Fits vehicles with a 3/4 inch bore size.
1979	Oldsmobile	Cutlass Calais		Rear	Fits vehicles with a 3/4 inch bore size.
1979	Oldsmobile	Cutlass Supreme		Rear	Fits vehicles with a 3/4 inch bore size.
1979	Pontiac	Grand Am		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1979	Pontiac	Grand LeMans		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1979	Pontiac	Grand Prix		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1979	Pontiac	LeMans		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1978	Buick	Century		Rear	Fits vehicles with a 3/4 inch bore size.
1978	Buick	Regal		Rear	Fits vehicles with a 3/4 inch bore size.
1978	Chevrolet	El Camino		Rear	Fits vehicles with a 3/4 inch bore size.
1978	Chevrolet	Malibu		Rear	Fits vehicles with a 3/4 inch bore size.
1978	Chevrolet	Monte Carlo		Rear	Fits vehicles with a 3/4 inch bore size.
1978	Oldsmobile	Cutlass		Rear	Fits vehicles with a 3/4 inch bore size.
1978	Oldsmobile	Cutlass Calais		Rear	Fits vehicles with a 3/4 inch bore size.
1978	Oldsmobile	Cutlass Supreme		Rear	Fits vehicles with a 3/4 inch bore size.
1978	Pontiac	Grand Am		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1978	Pontiac	Grand LeMans		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1978	Pontiac	Grand Prix		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.
1978	Pontiac	LeMans		Rear	Fits Drum Brake Wheel Cylinder with 3/4 In. bore and U.S. thread.

* 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:

110260134.62004172-137918002623203762533891784-36004F110260W-82004W906547WC13891

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