MPA Electrical BR55085G Disc Brake Rotor - Rear

Rear Coated Brake Rotor for Select GM Applications

The MPA Electrical BR55085G is a new rear disc brake rotor with a coated finish for select Chevrolet, Buick, and Pontiac applications. It is built to restore consistent braking performance while helping reduce noise, vibration, and fade in everyday driving.

For drivers searching for a rear brake rotor for 2011-2013 Chevrolet Impala or a coated rear rotor for 2004-2008 Pontiac Grand Prix, this part number BR55085G matches the listed applications and positions.

Key Features

• Part number: BR55085G
• Part type: disc brake rotor
• Finish: coated
• Product condition: new
• Grade type: regular
• OE-style vane design supports efficient cooling and stable stopping performance
• Q-Shield protective coating helps resist rust in harsh conditions

Detailed Description

MPA Electrical BR55085G is a coated rear brake rotor engineered for direct replacement use on select rear brake applications. The rotor uses an OE-style vane design to promote airflow and heat management, which supports more consistent braking under repeated stops. The protective coating adds corrosion resistance and is formulated to hold up under high temperatures, making it a practical choice for vehicles exposed to wet or salty road conditions. This rotor is listed for Chevrolet Impala, Chevrolet Impala Limited, Buick Allure, Buick LaCrosse, and Pontiac Grand Prix rear positions.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Brake pulsation from a worn or uneven rear rotor
• Reduced stopping consistency during repeated braking
• Rust buildup on exposed rotor surfaces
• Noise or vibration caused by rotor wear
• Heat-related brake fade in normal driving

Installation Notes and Tips

Verify rear axle fitment by year, make, model, and rotor diameter before installation. This rotor is listed for 2008-2009 Buick Allure rear with 270mm diameter rotor, 2009 Buick LaCrosse rear with 270mm diameter rotor, and other rear applications shown below. Inspect pads, calipers, and mounting surfaces during service, and clean the hub face before installing the new rotor to help prevent runout issues.

• Fits 2014-2016 Chevrolet Impala Limited, rear, coated rotor
• Fits 2011-2013 Chevrolet Impala, rear, coated rotor
• Fits 2008-2009 Buick Allure, rear, with 270mm diameter rotor; coated rotor
• Fits 2009 Buick LaCrosse, rear, with 270mm diameter rotor; coated rotor
• Fits 2005-2008 Buick LaCrosse, rear, coated rotor
• Fits 2004-2008 Pontiac Grand Prix, rear, coated rotor
• Fits 2005-2007 Buick Allure, rear, coated rotor

Quality Assurance

Built by MPA Electrical as a new, coated rotor with corrosion protection and OE-style vane design for dependable service on the listed applications. Part number BR55085G is intended to meet the fitment and performance needs shown above.