Centric 120.66040 Disc Brake Rotor - Front

Overview of Centric Premium Disc Brake Rotor 120.66040

The Centric Premium Disc Brake Rotor 120.66040 is engineered for reliable braking performance on select GM trucks and SUVs. Designed to meet or exceed OEM specifications, this vented rotor provides consistent stopping power for vehicles like the Chevrolet Silverado 1500 and GMC Sierra 1500.

• Vented disc brake rotor with smooth surface finish
• Coated hat finish for corrosion resistance
• Floating mounting type with 6 bolt holes
• Nominal thickness of 29.1 mm and discard thickness of 27.2 mm
• Outside diameter of 305 mm (12.008 inches)
• Compatible with multiple Cadillac, Chevrolet, and GMC models

Product Line Details: Centric Premium Disc Brake Rotors

The Centric Premium Disc Brake Rotors line focuses on delivering rotors that match OEM fit and function. These rotors feature a coated hat finish to resist rust and corrosion, extending rotor life. The smooth surface type ensures even pad contact and braking efficiency. This product line is designed for drivers seeking dependable replacement rotors that maintain factory braking performance.

Technical Specifications and Features

This disc brake rotor features a vented design to improve heat dissipation during braking, reducing the risk of brake fade. The rotor has a nominal thickness of 29.1 mm and a discard thickness of 27.2 mm, ensuring safe replacement intervals. The overall height measures 58.2 mm, with a center hole diameter of 78.7 mm and a bolt hole circle diameter of 139.7 mm. The rotor includes 6 bolt holes and 6 stud/lug holes with a diameter of 16.4 mm, compatible with floating mounting systems. The coated hat finish protects against corrosion, while the smooth surface type promotes consistent pad wear.

Compatible Vehicles and Applications

• Cadillac Escalade, Escalade ESV, Escalade EXT
• Chevrolet Avalanche 1500, Silverado 1500, Silverado 1500 Classic, Silverado 1500 HD, Suburban 1500, Tahoe
• GMC Sierra 1500, Sierra 1500 Classic, Sierra 1500 HD, Yukon, Yukon XL 1500
• Chevrolet Astro, Express 1500, Express 2500, Safari, Savana 1500, Savana 2500

Common Issues Addressed by This Rotor

• Brake pulsation caused by warped rotors
• Reduced braking efficiency due to worn rotor thickness
• Corrosion and rust buildup on rotor hats
• Overheating and brake fade from insufficient heat dissipation
• Uneven brake pad wear from rough rotor surfaces

Installation Notes and Tips

Ensure the rotor discard thickness of 27.2 mm is not exceeded before installation. Clean the rotor surface and hub mounting area to prevent uneven contact. Use proper torque specifications for the 6 mounting bolts to avoid rotor warping. This rotor does not include bearings or ABS tone rings, so verify compatibility with your vehicle’s braking system. Floating mounting type requires correct alignment during installation for optimal performance.

Quality Assurance and Warranty

Centric Premium Disc Brake Rotors are manufactured to meet OEM standards for fit, form, and function. The coated hat finish enhances durability against corrosion. While specific warranty details are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Always consult product documentation or manufacturer resources for exact warranty terms.