Centric 320.62101F Disc Brake Rotor - Rear

Centric GCX Rear Brake Rotor Overview

The Centric GCX Elemental Protection Disc Brake Rotor, part number 320.62101F, is a rear solid rotor built for OE-style braking performance and corrosion resistance. It is a direct-fit option for select Buick Lucerne and Cadillac DTS applications, including rear brake service on 2006-2011 Buick Lucerne and 2006-2011 Cadillac DTS.

Centric’s GCX Full Coating line uses a fully coated disc finish and coated hat surface to help protect non-mating areas from rust while maintaining a clean appearance over time. The 320.62101F is engineered with application-specific metallurgy and surface treatment to match the vehicle’s original brake profile.

Key Features

• Part number: 320.62101F
• Rear disc brake rotor for select Buick Lucerne and Cadillac DTS models
• Fully coated disc finish with coated hat finish
• Solid rotor design with smooth surface type
• Outside diameter: 11.496 in. / 292.000 mm
• Nominal thickness: 0.472 in. / 12.000 mm
• Discard thickness: 0.413 in. / 10.500 mm
• 5-lug pattern with 115 mm bolt circle
• Center hole diameter: 2.783 in. / 70.700 mm
• Floating disc mounting and one miscellaneous hole

Product Line Details

Centric GCX Elemental Protection Disc Brake Rotors are built around application-specific coating patterns and metallurgy. The GCX Full Coating design is intended to support OE-style brake feel while adding corrosion protection on exposed surfaces, making it a practical choice for rear brake rotor replacement on vehicles such as the Buick Lucerne and Cadillac DTS.

Fitment

• Fits 2006-2011 Buick Lucerne, rear
• Fits 2006-2011 Cadillac DTS, rear; exc Hearse & Limo

What This Rotor Helps Address

• Rear brake pulsation caused by worn or below-spec rotor thickness
• Rust buildup on exposed rotor surfaces
• Uneven braking performance from a deteriorated rear rotor
• Noise or vibration associated with rotor wear
• Replacement needs for OE-style rear brake service on Buick Lucerne and Cadillac DTS

Installation Notes and Tips

Verify rotor dimensions, hub fitment, and rear brake configuration before installation. Clean the hub mounting surface thoroughly to help prevent runout-related issues, and inspect pads and caliper hardware during service. For best results, follow the vehicle manufacturer’s brake bedding procedure after installation.

Quality Assurance

Centric designs GCX rotors to match OE performance targets while using corrosion-resistant coatings on non-mating surfaces. The application-specific metallurgy and coating pattern are intended to align with the brake pad friction type and the vehicle’s original rotor profile.

This part cross-references Raybestos Brakes (e.g., 580405FZN) for the same application.