Centric 135.66020 Drum Brake Wheel Cylinder - Rear

Reliable Drum Brake Wheel Cylinder for Select GM Vehicles

The Centric C-TEK Standard Wheel Cylinder 135.66020 is engineered to restore proper braking function in various Cadillac, Chevrolet, and GMC models. Designed for drum brake systems, this wheel cylinder ensures consistent hydraulic pressure and smooth braking performance.

• Attachment Type: Bolted for secure installation
• Mounting Method: 2 bolts with 2 mounting holes
• Bore Diameter: 1.000 inch (25.4 mm) for precise fit
• Includes bleeder screw for easy brake bleeding
• Dual piston design with 2 pistons for balanced braking
• Inlet Thread Diameter: 0.375 inch with 24 pitch inverted flare fitting
• Compatible with left and right wheel positions
• Weight: Approximately 0.92 lbs (0.42 kgs)

About the C-TEK Standard Wheel Cylinders Line

The C-TEK Standard Wheel Cylinders product line by Centric offers dependable replacement parts designed to meet or exceed OEM specifications. This line focuses on delivering consistent hydraulic performance and durability for drum brake systems, making it suitable for a wide range of GM trucks and SUVs. The 135.66020 wheel cylinder is part of this line, providing a reliable solution for restoring brake function on vehicles equipped with drum brakes.

Product Details and Specifications

This drum brake wheel cylinder features a 1-inch bore diameter and a dual piston setup, which helps maintain even pressure distribution within the brake system. The bolted attachment type and two-bolt mounting method ensure a secure fit on compatible vehicles. The included bleeder screw simplifies maintenance by allowing efficient removal of air from the brake lines. The inlet fitting uses a 0.375-inch thread diameter with an inverted flare design, compatible with standard brake lines. This part is designed for use on both left and right sides of the vehicle.

Compatible Vehicles and Applications

• Cadillac Brougham
• Chevrolet Blazer, C1500, C1500 Suburban, C2500, Commercial Chassis, Express 2500, Express 3500, G30, Jimmy, K1500, K1500 Suburban, K2500, S10, Sonoma, Suburban 1500, Tahoe
• GMC Sierra models including K1500, K1500 Suburban, K2500, Savana 2500, Savana 3500, Yukon

Common Issues Addressed by This Wheel Cylinder

• Brake fluid leaks from worn or damaged wheel cylinders
• Uneven or reduced braking performance in drum brake systems
• Spongy brake pedal caused by air in brake lines
• Brake drag or sticking due to piston malfunction
• Corrosion or wear leading to brake system failure

Installation Notes and Tips

Ensure the vehicle is securely lifted and supported before beginning installation. Remove the drum brake assembly to access the wheel cylinder. Carefully disconnect brake lines using appropriate flare nut wrenches to avoid damage. Replace the old wheel cylinder with the Centric 135.66020, securing it with the two mounting bolts. Reattach brake lines and tighten fittings to manufacturer torque specifications. Bleed the brake system thoroughly using the included bleeder screw to remove air and restore proper hydraulic pressure. Verify brake operation before driving.

Quality Assurance and Warranty

Centric's C-TEK Standard Wheel Cylinders are manufactured to meet strict quality standards, ensuring reliable performance and durability. Each wheel cylinder undergoes rigorous testing to confirm proper fit and function. While specific warranty details for part number 135.66020 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or Centric directly for exact warranty terms.