HomeBrake > Hardware, Fasteners and FittingsDorman W37581 Drum Brake Wheel Cylinder - Rear Left
Part #: W37581

Dorman W37581 Drum Brake Wheel Cylinder - Rear Left

Rear Left
⚙️ 23 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Honda, Accord, Civic, CRX, and Prelude
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Reliable Drum Brake Wheel Cylinder for Honda Vehicles

The Dorman W37581 drum brake wheel cylinder is engineered to restore proper braking function for select Honda models. Designed with precision, this component ensures consistent hydraulic pressure for safe and effective braking performance.

  • Includes bleeder screw for easy brake fluid bleeding
  • Brake line inlet thread diameter: 10 mm
  • Constructed from durable aluminum casting material
  • Bore diameter measures 0.75 inches for accurate fit
  • Brake component inlet thread size: M10 x 1.0 with 1.0 thread pitch
  • Package contains one drum brake wheel cylinder

Detailed Product Description

The Dorman W37581 drum brake wheel cylinder is specifically designed for Honda Accord, Civic, CRX, and Prelude models. Its aluminum casting provides corrosion resistance and long-lasting durability under typical braking system conditions. The 0.75-inch bore diameter ensures proper piston movement within the cylinder, maintaining hydraulic pressure to the brake shoes. The included bleeder screw simplifies the brake bleeding process, allowing for efficient removal of air from the brake lines. The brake line inlet thread diameter of 10 mm and M10 x 1.0 thread size with a 1.0 pitch ensure compatibility with factory brake lines, facilitating straightforward installation.

Common Applications and Issues Addressed

  • Restores braking performance in Honda Accord, Civic, CRX, and Prelude models
  • Replaces leaking or seized drum brake wheel cylinders
  • Eliminates brake fluid leaks at the wheel cylinder
  • Resolves uneven brake shoe wear caused by faulty hydraulics
  • Improves brake pedal feel and responsiveness

Installation Notes and Tips

  • Ensure brake system is depressurized before removal
  • Use the included bleeder screw to properly bleed air from the brake lines after installation
  • Verify thread compatibility with existing brake lines (M10 x 1.0 thread size)
  • Inspect brake shoes and drums for wear during installation
  • Follow manufacturer torque specifications for mounting bolts

Quality Assurance and Warranty

Dorman manufactures the W37581 drum brake wheel cylinder to meet or exceed OEM specifications for fit and function. The aluminum casting material offers resistance to corrosion and wear, contributing to the part's longevity. This product is backed by Dorman's limited warranty, providing coverage against defects in material and workmanship under normal use.

BrandDorman
Part NumberW37581
Bleeder Screw Cap IncludedNo
Bleeder Screw IncludedYes
Bore Diameter0.75
Brake Component Inlet Thread SizeM10 X 1.0
Brake Line Inlet Thread Diameter10
Casting MaterialAluminum
Package Contents1 Drum Brake Wheel Cylinder
Thread Pitch1.0

This part fits 23 vehicles. Search below:

YearMakeModelBody Type# DoorsPositionNotes
1989HondaAccord4 DoorRear LeftFits vehicles with a 3/4 inch bore size.
1989HondaAccord2 DoorRear LeftFits vehicles with a 3/4 inch bore size.
1989HondaCivicSedanRear LeftFits vehicles with a 3/4 inch bore size.
1989HondaCivicHatchbackRear LeftFits vehicles with a 3/4 inch bore size.
1989HondaCRXRear LeftFits vehicles with a 3/4 inch bore size.
1988HondaAccord4 DoorRear LeftFits vehicles with a 3/4 inch bore size.
1988HondaAccord2 DoorRear LeftFits vehicles with a 3/4 inch bore size.
1988HondaCivicSedanRear LeftFits vehicles with a 3/4 inch bore size.
1988HondaCivicHatchbackRear LeftFits vehicles with a 3/4 inch bore size.
1988HondaCRXRear LeftFits vehicles with a 3/4 inch bore size.
1987HondaCivicRear LeftFits vehicles with a 3/4 inch bore size.
1987HondaPreludeRear LeftFits vehicles with a 3/4 inch bore size.
1986HondaCivicRear LeftFits vehicles with a 3/4 inch bore size.
1986HondaPreludeRear LeftFits vehicles with a 3/4 inch bore size.
1985HondaCivicRear LeftFits vehicles with a 3/4 inch bore size.
1985HondaPreludeRear LeftFits vehicles with a 3/4 inch bore size.
1984HondaCivicRear LeftFits vehicles with a 3/4 inch bore size.
1984HondaPreludeRear LeftFits vehicles with a 3/4 inch bore size.
1983HondaCivicRear LeftFits vehicles with a 3/4 inch bore size.
1982HondaCivicRear LeftFits vehicles with a 3/4 inch bore size.
1982HondaPreludeRear LeftFits vehicles with a 3/4 inch bore size.
1981HondaCivicWagonRear LeftFits vehicles with a 3/4 inch bore size.
1980HondaCivicWagonRear LeftFits vehicles with a 3/4 inch 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:

072-8307134.4010618E20520375813385743301SA3681784-08106F105167W-54106W906524WC13857

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