Centric 320.62129F Disc Brake Rotor - Rear

Rear Brake Rotor for Select GM Applications

The Centric GCX Elemental Protection Disc Brake Rotor, part number 320.62129F, is a rear solid rotor built for select Chevrolet, Buick, and Pontiac applications. It combines a fully coated disc finish with a coated hat to help resist corrosion on exposed surfaces while maintaining a smooth braking surface.

Compatible With 2011-2013 Chevrolet Impala rear, 2014-2016 Chevrolet Impala Limited rear, 2005-2009 Buick Allure rear, 2005-2009 Buick LaCrosse rear, and 2004-2008 Pontiac Grand Prix rear.

Key Features

• Centric GCX Elemental Protection Disc Brake Rotors - Full Coating line
• Part number 320.62129F
• Fully coated disc finish with coated hat finish
• Smooth surface type for rear brake service
• Solid rotor construction
• 5-lug design with 115 mm bolt circle
• Floating disc mounting and one miscellaneous hole
• Outside diameter: 270.000 mm (10.630 in)
• Nominal thickness: 14.000 mm (0.551 in)
• Discard thickness: 12.500 mm (0.492 in)

Product Details

The Centric GCX Elemental Protection line focuses on corrosion protection across the rotor’s exposed surfaces, making this rotor a practical choice for rear brake replacement on GM sedans and performance sedans. The smooth, solid design measures 270.000 mm in outside diameter with a 70.800 mm center hole diameter, 36.900 mm overall height, and 14.200 mm lug hole diameter. This rotor is specified for rear use on the Chevrolet Impala, Chevrolet Impala Limited, Buick Allure, Buick LaCrosse, and Pontiac Grand Prix. Part number 320.62129F is a direct-fit style replacement for the listed applications.

What This Rotor Helps Address

• Rear brake pulsation caused by worn or out-of-spec rotors
• Corrosion on the hat and non-friction surfaces
• Reduced braking consistency from rotor wear
• Noise or vibration related to uneven rotor condition
• Service replacement needs on GM rear brake systems

Installation Notes and Tips

Verify rotor dimensions, bolt pattern, and rear axle application before installation. Clean the hub mounting surface thoroughly so the rotor seats flat and runout is minimized. Inspect pads, calipers, and hardware condition during service, and follow the vehicle manufacturer’s torque specifications during wheel installation. For fitment confirmation, match the vehicle year, make, model, and rear position exactly to the listed applications.

Quality Assurance

Centric GCX Elemental Protection rotors are built with coated surfaces and application-specific dimensions for the listed vehicles. This part number 320.62129F is cataloged for rear fitment on the specified Chevrolet, Buick, and Pontiac models.