Centric 120.66043 Disc Brake Rotor - Rear

Overview of Centric Premium Disc Brake Rotor 120.66043

The Centric Premium Disc Brake Rotor 120.66043 is engineered for reliable braking performance on heavy-duty vehicles. Designed specifically for Chevrolet, GMC, and Hummer models, this vented rotor ensures consistent heat dissipation and durability under demanding conditions.

• Vented disc brake rotor with smooth surface finish
• Coated hat finish for corrosion resistance
• Nominal thickness of 29.0 mm and discard thickness of 26.5 mm
• Outside diameter of 330 mm (12.992 inches)
• Eight bolt holes with a mounting bolt hole circle diameter of 165.1 mm
• Overall height of 85.7 mm (3.374 inches)
• Compatible with Chevrolet Silverado 1500, Sierra 2500 HD, GMC Savana 3500, Hummer H2, and more

Product Line Details: Centric Premium Disc Brake Rotors

The Centric Premium Disc Brake Rotors line focuses on delivering rotors that meet or exceed OEM specifications. These rotors feature a coated hat finish to resist rust and corrosion, extending service life. The vented design improves heat dissipation, reducing brake fade during heavy use. The smooth surface type ensures consistent pad contact and braking performance. This product line is tailored for heavy-duty trucks and SUVs requiring durable and reliable braking components.

Technical Specifications and Features

This disc brake rotor has a nominal thickness of 29.0 mm and a discard thickness of 26.5 mm, indicating when replacement is necessary to maintain safe braking. The rotor’s outside diameter measures 330 mm, suitable for large vehicle brake systems. It includes eight bolt holes arranged on a 165.1 mm bolt circle diameter, compatible with specific Chevrolet, GMC, and Hummer models. The rotor’s hat is coated to protect against corrosion, and the vented design helps dissipate heat efficiently during braking. The overall height is 85.7 mm, ensuring proper fitment and clearance.

Compatible Vehicles and Applications

• Chevrolet Avalanche 2500 and Silverado 1500 HD Classic
• GMC Sierra 2500 HD and Savana 3500
• Hummer H2
• Chevrolet Express 2500 and Suburban 2500
• GMC Yukon XL 2500

This rotor is designed for use in heavy-duty trucks and SUVs requiring robust braking components capable of handling high loads and frequent braking cycles.

Common Issues Addressed by This Rotor

• Brake fade caused by overheating during heavy towing or hauling
• Warped or uneven rotor surfaces leading to vibration or pulsation
• Corrosion and rust buildup reducing rotor lifespan
• Reduced braking efficiency due to worn or thin rotors
• Noise and uneven pad wear from damaged rotors

Installation Notes and Tips

Ensure the rotor thickness is above the discard thickness of 26.5 mm before installation. Clean the hub surface and mounting area to prevent runout. Use proper torque specifications on the eight mounting bolts arranged on the 165.1 mm bolt circle. The coated hat finish helps prevent corrosion, but avoid damaging the coating during installation. This rotor does not include bearings or an ABS tone ring, so verify compatibility with your vehicle’s braking system.

Quality Assurance and Warranty

Centric Premium Disc Brake Rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The coated finish and vented design contribute to long service life and consistent braking performance. While specific warranty details are not provided here, Centric products typically come with a limited warranty against defects in materials and workmanship. Always consult product documentation or the manufacturer for exact warranty terms.