Centric 134.66031 Drum Brake Wheel Cylinder - Rear

Overview of Centric Premium Wheel Cylinders 134.66031

The Centric Premium Wheel Cylinder 134.66031 is designed for reliable brake performance on Chevrolet and GMC trucks. Engineered specifically for the Sierra 1500 and Silverado 1500 models, this drum brake wheel cylinder ensures precise hydraulic function and durability.

• Compatible with Chevrolet Sierra 1500 and GMC Silverado 1500
• Drum brake wheel cylinder with bolted attachment type
• Includes bleeder screw for easy brake bleeding
• Two slotted pistons with 1.063 inch bore diameter
• Mounts securely with 2 bolts and 2 mounting holes
• Inverted flare inlet fitting with 10mm thread diameter
• Weight approximately 1.4 lbs (0.64 kgs)

Product Line: Centric Premium Wheel Cylinders

The Centric Premium Wheel Cylinders line focuses on delivering high-quality brake hydraulics with precise fitment and reliable operation. This product line emphasizes OEM-equivalent specifications, including bore diameter and piston design, to maintain consistent braking performance. The 134.66031 wheel cylinder is part of this line, offering a direct replacement solution for drum brake systems on select Chevrolet and GMC trucks.

Detailed Product Description

This drum brake wheel cylinder features a bolted attachment type with two mounting bolts, ensuring a secure fit on both left and right positions. The cylinder includes two slotted pistons, each with a bore diameter of approximately 1.063 inches (26.99 mm), designed to provide balanced hydraulic pressure. The inlet fitting uses an inverted flare design with a 10mm thread diameter and 1.0 thread pitch, compatible with standard brake lines. A bleeder screw is included to facilitate proper brake system bleeding during installation or maintenance.

Common Applications and Issues Addressed

• Restores proper brake hydraulic pressure in drum brake systems
• Replaces leaking or seized wheel cylinders on Chevrolet Sierra 1500 and GMC Silverado 1500
• Eliminates brake drag caused by piston sticking
• Prevents brake fluid leaks that can reduce braking efficiency
• Addresses uneven brake shoe wear due to faulty wheel cylinders

Installation Notes and Tips

• Ensure the vehicle is securely lifted and supported before beginning installation
• Use the included bleeder screw to properly bleed air from the brake system after installation
• Verify the correct orientation for left and right wheel cylinders during mounting
• Check all mounting bolts for proper torque to avoid loosening during operation
• Inspect brake lines and fittings for damage or corrosion before reassembly

Quality Assurance and Warranty

The Centric Premium Wheel Cylinder 134.66031 is manufactured to meet or exceed OEM specifications for fit, form, and function. Each unit undergoes rigorous quality control to ensure durability and reliable brake performance. While specific warranty details are not provided here, Centric products typically come with a limited warranty covering defects in materials and workmanship.