Centric 135.66022 Drum Brake Wheel Cylinder - Rear

Reliable Drum Brake Wheel Cylinder for GM Vehicles

The Centric C-TEK Standard Wheel Cylinder 135.66022 is engineered to restore proper braking function in select Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models. Designed for durability and precise fitment, this wheel cylinder ensures consistent hydraulic pressure within your drum brake system.

• Attachment Type: Bolted for secure installation
• Mounting Method: 2 bolts with 2 mounting holes
• Bore Diameter: 0.938 inches (15/16") for accurate piston movement
• Includes bleeder screw for easy brake fluid bleeding
• Two slotted pistons for balanced hydraulic pressure
• Inlet Thread Diameter: 10.000 mm with 1.000 mm thread pitch
• Bubble flare type inlet fittings for leak-resistant connections
• Weight: Approximately 1.0 lb (0.45 kg) for OEM-like performance

About the C-TEK Standard Wheel Cylinders Line

The C-TEK Standard Wheel Cylinders line by Centric offers reliable replacement components designed to meet or exceed OEM specifications. This product line focuses on delivering consistent hydraulic performance and durability for drum brake systems, making it suitable for a range of GM vehicles. The 135.66022 wheel cylinder is part of this line, providing a direct-fit solution that maintains proper brake function and safety.

Product Details and Specifications

This drum brake wheel cylinder features a bolted attachment type with two mounting bolts, ensuring a secure and stable fit. The bore diameter measures 0.938 inches (15/16"), accommodating two slotted pistons that help maintain even hydraulic pressure on brake shoes. The included bleeder screw simplifies brake fluid maintenance, while the bubble flare inlet fittings provide a reliable seal against leaks. With a weight of approximately 1.0 lb, this wheel cylinder matches the original equipment's balance of strength and weight.

Compatible Vehicles and Applications

• Buick models including LeSabre and Park Avenue
• Cadillac models such as DeVille and Fleetwood
• Chevrolet models including Lumina APV, Montana, and Commercial Chassis
• Oldsmobile 88 and 98 series
• Pontiac Bonneville, Silhouette, and Trans Sport

Common Issues Addressed by This Wheel Cylinder

• Brake fluid leaks causing reduced braking efficiency
• Uneven brake shoe wear due to piston malfunction
• Spongy or soft brake pedal feel from hydraulic failure
• Corroded or damaged wheel cylinder components
• Brake drag or sticking caused by faulty pistons

Installation Notes and Tips

Ensure the mounting surface is clean and free of debris before installation. Use the included bleeder screw to properly bleed the brake system after installation to remove air pockets. Verify that the bubble flare fittings are securely tightened to prevent leaks. This wheel cylinder requires a 2-bolt mounting method and fits specific GM drum brake assemblies as listed.

Quality Assurance and Warranty

Centric's C-TEK Standard Wheel Cylinders are manufactured to meet OEM standards for fit, form, and function. Each unit undergoes quality inspections to ensure reliable performance. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Consult product documentation or Centric for exact warranty terms.