Centric 121.66051 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.66051

The Centric C-TEK Standard Disc Brake Rotor 121.66051 is engineered for reliable braking performance on select GM and Isuzu SUVs. Designed specifically for vehicles like the Chevrolet Trailblazer, GMC Envoy, Buick Rainier, and others, this vented rotor ensures consistent heat dissipation and durability under demanding driving conditions.

• Vented disc brake rotor with smooth surface finish
• Outside diameter of 12.008 inches (305 mm) for precise fitment
• Nominal thickness of 1.150 inches (29.2 mm) with discard thickness at 1.083 inches (27.5 mm)
• Overall height measures 2.150 inches (54.6 mm)
• Floating disc mounting with 6 lug holes (0.516 inches diameter) on a 5-inch bolt circle
• Straight vane style for effective cooling
• Center hole diameter of 3.110 inches (79 mm)
• Weight approximately 17.5 lbs (7.95 kgs)
• ABS tone ring not included; bearings not included

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers a balance of quality and value for replacement rotors. These rotors are designed to meet or exceed OEM specifications, providing consistent braking performance and durability. The 121.66051 rotor is part of this line, featuring vented construction and a smooth surface to ensure proper pad contact and heat management for vehicles such as the Buick Rainier and Chevrolet Trailblazer.

Detailed Product Description

This Centric disc brake rotor is engineered with a vented design that promotes efficient heat dissipation, reducing the risk of brake fade during extended use. The smooth surface finish supports even brake pad wear and quiet operation. With a floating disc mounting and straight vane style, the rotor maintains structural integrity and cooling efficiency. The rotor’s dimensions, including a 12.008-inch outside diameter and 6 lug holes on a 5-inch bolt circle, ensure compatibility with specific GM and Isuzu models like the GMC Envoy and Oldsmobile Bravada. The nominal thickness of 1.150 inches and discard thickness of 1.083 inches provide clear service limits for maintenance.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing rotor thickness below manufacturer discard limits
• Improving heat dissipation to reduce brake fade on SUVs like the Chevrolet Trailblazer
• Restoring smooth braking performance on Buick Rainier and GMC Envoy
• Ensuring proper fitment and safety on Isuzu Ascender and Oldsmobile Bravada

Installation Notes and Tips

• Verify rotor dimensions and bolt pattern match your vehicle before installation
• Ensure hub surface is clean and free of rust for proper rotor seating
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Check brake pads for wear and replace if necessary when installing new rotors
• Perform a bed-in procedure after installation to optimize braking performance

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet OEM standards for fit, form, and function. While specific warranty details for part number 121.66051 should be confirmed with the supplier, Centric generally offers coverage against defects in materials and workmanship. This rotor is designed to provide consistent braking performance and durability for compatible Buick, Chevrolet, GMC, Isuzu, and Oldsmobile models.