Centric 120.66077 Disc Brake Rotor - Rear

Centric Premium Rear Disc Brake Rotor

Centric Premium Disc Brake Rotor 120.66077 is built for rear brake service on heavy-duty Chevrolet Silverado and GMC Sierra applications. It combines a vented rotor design with a coated hat finish and Centric’s corrosion-resistant electrocoating to help maintain clean, dependable braking performance in demanding conditions.

Key Features

• Part number: 120.66077
• Rear disc brake rotor for compatible Chevrolet Silverado 2500 HD, Silverado 3500 HD, GMC Sierra 2500 HD, and Sierra 3500 HD applications
• Vented rotor design with straight vanes for heat management
• Electrocoated finish for long-lasting corrosion protection
• Coated hat finish helps resist rust on exposed surfaces
• Outside diameter: 360 mm (14.173 in)
• Nominal thickness: 34.1 mm (1.343 in)
• Discard thickness: 32.5 mm (1.280 in)
• Center hole diameter: 127 mm (5.000 in)
• Mounting bolt hole circle diameter: 180 mm (7.087 in)
• 8 bolt holes and 8 stud/lug holes

Product Details

Centric Premium Disc Brake Rotors are engineered with an electrocoating finish that provides durable corrosion protection after installation, not just during storage. Unlike basic phosphate coatings that can lose effectiveness once exposed to heat and moisture, this rotor’s finish is built to stand up to harsh road conditions and repeated brake heat cycles. The vented construction and straight vane layout support consistent airflow through the rotor, while the smooth surface type supports stable pad contact.

This Centric 120.66077 rotor cross-references Raybestos Brakes 580876 and 580876PER for the same application.

Common Brake Issues This Rotor Helps Address

• Rear brake pulsation caused by rotor wear or thickness variation
• Rust buildup on exposed rotor surfaces
• Reduced braking consistency from heat-related rotor stress
• Brake noise linked to uneven rotor surfaces
• Service replacement for worn rear rotors on heavy-duty trucks

Installation Notes

Verify rear axle and wheel configuration before ordering. This rotor is listed for rear fitment on 2011-2024 Chevrolet Silverado 2500 HD, 2023-2024 Chevrolet Silverado 3500 HD SRW, 2011-2024 GMC Sierra 2500 HD, 2023-2024 GMC Sierra 3500 HD SRW, 2022 Chevrolet Silverado 3500 HD, 2022 GMC Sierra 3500 HD, 2011-2021 Chevrolet Silverado 3500 HD SRW, 2011-2021 GMC Sierra 3500 HD SRW, 2016-2019 Chevrolet Suburban 3500 HD, 2014-2018 Chevrolet Silverado 2500, and 2015-2018 Chevrolet Silverado 3500 SRW. Confirm disc mounting, hub dimensions, and rotor thickness specifications during brake service.

Quality Assurance

Centric Premium Disc Brake Rotors are manufactured to support consistent fitment and corrosion resistance for demanding truck brake applications. The electrocoated finish is a key quality feature, helping protect the rotor after installation in wet and salty environments.