HomeDorman W37786 Drum Brake Wheel Cylinder - Rear, Rear Left or Rear Right
Part #: W37786

Dorman W37786 Drum Brake Wheel Cylinder - Rear, Rear Left or Rear Right

Rear Left
11 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Suzuki, Samurai
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Reliable Drum Brake Wheel Cylinder for Suzuki Samurai

The Dorman W37786 drum brake wheel cylinder is engineered to restore proper braking function for Suzuki Samurai vehicles. Designed with precision, this component ensures consistent hydraulic pressure within the drum brake system.

  • Includes bleeder screw for easy brake fluid bleeding
  • Brake line inlet thread diameter: 10 mm
  • Brake component inlet thread size: M10 x 1.0 with 1.0 thread pitch
  • Constructed from durable aluminum casting material
  • Bore diameter measures 0.875 inches for accurate fitment
  • Package contains one drum brake wheel cylinder

Technical Details and Specifications

The Dorman W37786 wheel cylinder is specifically designed for Suzuki Samurai models, providing a precise fit and reliable performance. Its aluminum casting offers corrosion resistance and strength, while the 0.875-inch bore diameter ensures proper piston movement within the brake assembly. The included bleeder screw simplifies maintenance by allowing 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 guarantee compatibility with the vehicle's hydraulic brake system.

Common Applications and Problem Resolution

This drum brake wheel cylinder is used to maintain hydraulic pressure in the rear drum brakes of Suzuki Samurai vehicles. It addresses several brake system issues, including:

  • Leaking brake fluid from worn or damaged wheel cylinders
  • Reduced braking efficiency due to piston sticking or corrosion
  • Uneven brake shoe wear caused by inconsistent hydraulic pressure
  • Brake pedal sponginess resulting from air in the brake lines
  • Brake drag caused by seized wheel cylinder pistons

Installation Notes and Tips

When installing the Dorman W37786 wheel cylinder, ensure the brake system is properly bled using the included bleeder screw to remove any trapped air. Verify that the brake line inlet threads match the vehicle specifications (M10 x 1.0 thread size) to avoid leaks. Inspect brake shoes and hardware for wear or damage during installation. Use appropriate brake fluid and follow manufacturer torque specifications for mounting bolts.

Quality Assurance and Warranty

Dorman manufactures the W37786 wheel cylinder to meet or exceed OEM standards for fit, form, and function. The aluminum casting material provides durability and resistance to corrosion, contributing to long service life. This part is backed by Dorman's limited warranty, ensuring coverage against defects in material and workmanship under normal use.

BrandDorman
Part NumberW37786
Bleeder Screw Cap IncludedNo
Bleeder Screw IncludedYes
Bore Diameter0.875
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 11 vehicles. Search below:

YearMakeModelPositionNotes
1995SuzukiSamuraiRear LeftFits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder.
1994SuzukiSamuraiRear LeftFits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder.
1993SuzukiSamuraiRear LeftFits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder.
1992SuzukiSamuraiRear LeftFits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder.
1991SuzukiSamuraiRear LeftFits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder.
1990SuzukiSamuraiRear LeftFits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder.
1989SuzukiSamuraiRear LeftFits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder.
1988SuzukiSamuraiRear LeftFits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder.
1988SuzukiSamuraiRear RightConvertible To VIN J4200001 or Hardtop To VIN J4140001
1987SuzukiSamuraiRearFits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder.
1986SuzukiSamuraiRearFits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder.

* 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:

072-8446134.4800318E2972037786340355340283300784-10003F116686W-50003W906626WC14035

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