Dynamite Friction 4002-40056 Disc Brake Rotor Set - Rear

Rear Brake Rotor Set for Ram HD Trucks

The Dynamite Friction DFC Brake Rotors - GEOSPEC Coated rear disc brake rotor set is built for Ram heavy-duty trucks that need direct-fit rear rotor replacement coverage. Part number 4002-40056 serves a wide range of Ram 2500, Ram 3500, and Ram 4000 applications from 2009 through 2025.

Designed for rear axle service, this rotor set supports common OE-style brake maintenance on Ram 2500 and Ram 3500 models, including select single rear wheel and axle-specific configurations.

Key Features

• Rear disc brake rotor set for Ram HD truck applications
• GEOSPEC coated finish for added corrosion resistance on exposed rotor surfaces
• Direct replacement coverage for multiple Ram 2500, Ram 3500, and Ram 4000 rear brake setups
• Part number 4002-40056 for catalog and fitment lookup
• Built for rear axle brake service on 2009-2025 Ram trucks listed below

Product Details

The DFC Brake Rotors - GEOSPEC Coated line focuses on replacement rotors with a protective coating applied to non-friction areas to help reduce surface rust where the rotor is exposed. This rear rotor set is cataloged for Ram 2500 rear applications from 2011-2025, Ram 3500 rear applications from 2011-2025 with configuration-specific coverage, Ram 4000 rear applications from 2011-2018, and Dodge Ram 2500 and Ram 3500 rear applications from 2009-2010. Use part number 4002-40056 when verifying the correct rear rotor set for your truck.

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

Vehicle Fitment

• Fits 2022-2025 Ram 2500, rear, DFC Geospec Rotors.
• Fits 2025 Ram 3500, rear, SRW; DFC Geospec Rotors.
• Fits 2023-2024 Ram 3500, rear, Standard Output Transmission; DFC Geospec Rotors.
• Fits 2022 Ram 3500, rear, 11.5" Rear Axle; DFC Geospec Rotors.
• Fits 2011-2021 Ram 2500, rear, DFC Brake Rotors - GEOSPEC Coated.
• Fits 2019-2021 Ram 3500, rear, SRW; Standard Output Transmission; 11.5" Rear Axle; DFC Brake Rotors - GEOSPEC Coated.
• Fits 2019-2021 Ram 3500, rear, Brake Hydraulic Hose: SRW; DFC Brake Rotors - GEOSPEC Coated.
• Fits 2019-2021 Ram 3500, rear, SRW; High Output HD Transmission; 12" Rear Axle; DFC Brake Rotors - GEOSPEC Coated.
• Fits 2011-2018 Ram 3500, rear, DFC Brake Rotors - GEOSPEC Coated.
• Fits 2011-2018 Ram 4000, rear, Mexico; DFC Brake Rotors - GEOSPEC Coated.
• Fits 2011-2018 Ram 4000, rear, DFC Brake Rotors - GEOSPEC Coated.
• Fits 2009-2010 Dodge Ram 2500, rear, DFC Brake Rotors - GEOSPEC Coated.
• Fits 2009-2010 Dodge Ram 3500, rear, DFC Brake Rotors - GEOSPEC Coated.

Installation Notes

Confirm rear axle configuration, transmission type, and model-year details before ordering, especially on Ram 3500 applications with SRW, standard output transmission, high output HD transmission, or specific rear axle notes. Match the rotor set to the rear position only and verify the part number 4002-40056 against the vehicle’s brake setup before installation.

Quality Assurance

DFC Brake Rotors - GEOSPEC Coated are cataloged for direct replacement use on the listed Ram and Dodge Ram rear brake applications. The coated finish is used to help protect non-friction surfaces during service and everyday exposure.