Dynamite Friction 4002-40059 Disc Brake Rotor Set - Rear

Rear Brake Rotor Set for Ram HD Applications

The Dynamite Friction DFC Brake Rotors - GEOSPEC Coated rear disc brake rotor set is built for select Ram heavy-duty trucks and chassis cab applications. Part number 4002-40059 is a direct-fit rear rotor option for multiple Ram 3500 and Ram 4000 configurations across 2019-2025 model years.

Key Features

• Rear disc brake rotor set from Dynamite Friction
• GEOSPEC coated finish for added corrosion resistance on exposed rotor surfaces
• Application-specific fitment for Ram 3500 and Ram 4000 rear brake service
• Part number 4002-40059 for easy ordering and catalog matching
• Compatible with select standard output, high output, DRW, and Mexico-market configurations listed below

Fitment Details

• Fits 2025 Ram 3500, rear, Standard Output; DFC Geospec Rotors
• Fits 2021-2025 Ram 4000, rear, DFC Geospec Rotors
• Fits 2023-2024 Ram 3500, rear, Standard Output Transmission; DFC Geospec Rotors
• Fits 2022 Ram 3500, rear, DRW; DFC Geospec Rotors
• Fits 2019-2021 Ram 3500, rear, DRW Brake Hydraulic Hose; DFC Brake Rotors - GEOSPEC Coated
• Fits 2019-2021 Ram 3500, rear, DRW; Standard Output Transmission; 11.5" Rear Axle; DFC Brake Rotors - GEOSPEC Coated
• Fits 2019-2021 Ram 3500, rear, DRW; High Output HD Transmission; 12" Rear Axle; DFC Brake Rotors - GEOSPEC Coated
• Fits 2019-2020 Ram 4000, rear, DFC Brake Rotors - GEOSPEC Coated
• Fits 2019-2020 Ram 4000, rear, Mexico; DFC Brake Rotors - GEOSPEC Coated

Detailed Description

DFC Brake Rotors - GEOSPEC Coated are engineered as rear replacement rotors for Ram 3500 and Ram 4000 trucks with the exact configurations shown in the fitment list. The GEOSPEC coated surface helps protect non-friction areas of the rotor from corrosion, which is especially valuable on work trucks that see frequent exposure to moisture, road salt, and heavy-duty use. If you are searching for rear brake rotors for a 2019-2025 Ram 3500 or Ram 4000, part number 4002-40059 is the catalog reference to verify before ordering.

Common Brake Service Issues

• Rear brake pulsation from worn or uneven rotor surfaces
• Corrosion on rotor hats and non-swept areas
• Reduced braking consistency during routine brake service
• Noise caused by rotor wear or surface irregularity
• Replacement needs on Ram 3500 DRW and Ram 4000 rear brake systems

Installation Notes and Tips

Confirm rear axle, transmission, and DRW configuration before installation, since this rotor set covers multiple Ram 3500 and Ram 4000 applications with different notes. Inspect pads, calipers, and hub surfaces during service, and verify rotor orientation and seating before road testing. Part number 4002-40059 should be matched to the exact vehicle configuration listed in the fitment data.

Quality Assurance

Dynamite Friction supplies the DFC Brake Rotors - GEOSPEC Coated line as a dedicated brake rotor product range for application-specific replacement needs. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.