Rear Brake Rotor Set for Select Buick and Cadillac

The Dynamite Friction DFC Brake Rotors - GEOSPEC Coated rear disc brake rotor set is built for direct-fit replacement on select rear brake applications. Part number 4002-46026 covers the 2018-2020 Buick Regal Sportback rear and the 2016 Cadillac ELR rear with Performance Brakes.

Key Features

• Rear disc brake rotor set for confirmed rear fitment
• GEOSPEC coated finish for added corrosion resistance on exposed rotor surfaces
• Direct replacement format for service on Buick Regal Sportback and Cadillac ELR rear brake systems
• Part number 4002-46026 for accurate ordering and catalog matching
• Compatible with 2016 Cadillac ELR equipped with Performance Brakes

Product Line Overview

DFC Brake Rotors - GEOSPEC Coated is Dynamite Friction’s coated rotor line for drivers who want a service replacement rotor with a protective surface treatment. On applications like the Buick Regal Sportback and Cadillac ELR, the coating helps preserve the non-friction areas of the rotor during storage and everyday exposure, while the braking surfaces remain ready for use after proper installation and bedding.

Fitment Details

• Fits 2018-2020 Buick Regal Sportback, rear.
• Fits 2016 Cadillac ELR, rear. Compatible with vehicles equipped with Performance Brakes.

Common Issues This Rotor Set Can Address

• Rear rotor wear that affects braking smoothness
• Brake pulsation caused by rotor surface condition
• Corrosion on the rotor hat and non-friction areas
• Noisy braking from worn rear rotors
• Service replacement needs for Buick Regal Sportback rear brakes or Cadillac ELR rear brakes

Installation Notes and Tips

Verify rear axle fitment and brake package before installation, especially on the 2016 Cadillac ELR with Performance Brakes. Clean the rotor surfaces before mounting, follow the vehicle service procedure, and bed the brakes according to the friction material manufacturer’s instructions. Part number 4002-46026 should be matched to the vehicle’s rear brake configuration before assembly.

Quality Assurance

Use this rotor set as a catalog-matched replacement for the listed applications. Confirm the part number 4002-46026 against the vehicle’s rear brake setup before installation to ensure correct application coverage.