Centric 120.66066 Disc Brake Rotor - Rear

Centric Premium Rear Disc Brake Rotor

Centric Premium Disc Brake Rotor 120.66066 is a rear solid rotor built for 2006 Buick Terraza, 2006 Chevrolet Uplander, 2006 Pontiac Montana, and 2006 Saturn Relay applications. It uses a coated finish on the hat and an electrocoated surface for corrosion resistance, making it a practical choice for vehicles exposed to moisture, road salt, and seasonal driving.

For shoppers searching for a rear brake rotor for 2006 Buick Terraza or a rear disc brake rotor for 2006 Chevrolet Uplander, this Centric rotor matches the listed OE-style dimensions and mounting pattern. Part number 120.66066 is also cross-referenced to Carlson 41255 for the same application.

Key Features

• Centric Premium Disc Brake Rotors line
• Part number 120.66066
• Rear position rotor for listed 2006 applications
• Solid rotor design with smooth surface type
• Electrocoated finish for corrosion protection
• Coated hat finish
• 6-lug pattern with 114.3 mm bolt circle
• Outside diameter: 299.9 mm (11.807 in.)
• Nominal thickness: 12.0 mm; discard thickness: 10.5 mm
• Center hole diameter: 70.6 mm

Product Details

Centric Premium Disc Brake Rotors are engineered with an electrocoating finish that resists rust far longer than basic phosphate coatings. That matters on rear brake rotors, where corrosion can affect service life, rotor appearance, and brake performance after installation. This rotor’s solid construction, 32.1 mm overall height, and floating mounting type align with the listed vehicle fitment and OE-style dimensions.

Use 120.66066 when you need a rear brake rotor for 2006 Buick Terraza, 2006 Chevrolet Uplander, 2006 Pontiac Montana, or 2006 Saturn Relay with the specified rear IRS application notes. The smooth braking surface supports consistent pad contact, while the coated hat helps reduce visible rust on exposed areas.

What This Rotor Helps Address

• Rear brake pulsation caused by worn or uneven rotor surfaces
• Brake noise related to corrosion or surface irregularity
• Rust buildup on exposed rotor areas
• Reduced braking consistency from rotor wear beyond discard thickness
• Replacement needs for rear brake service on listed 2006 GM and Saturn models

Installation Notes and Tips

Verify rotor dimensions, hub bore, and bolt pattern before installation. This rotor has 6 stud/lug holes, a 114.3 mm bolt circle, and a 70.6 mm center hole diameter. Inspect pads, caliper hardware, and hub condition during brake service, and clean the hub face thoroughly so the rotor seats flat.

For fitment-specific searches, this part fits 2006 Buick Terraza, rear; fits 2006 Chevrolet Uplander, rear; fits 2006 Pontiac Montana, rear; and fits 2006 Saturn Relay, rear. Confirm the IRS rear application notes where listed.

Quality Assurance

Centric Premium Disc Brake Rotors use an electrocoated finish designed to withstand extended salt-water exposure without rusting, offering stronger corrosion protection than common phosphate-treated rotors. Part number 120.66066 is built to the listed specifications for direct replacement use in the confirmed applications.