Dynamic Friction 4312-54121 Disc Brake Kit - Rear

Rear Brake Kit for Ford F-150

Dynamic Friction DFC GEOSPEC Coated Rotors with 3000 Ceramic Brake Pads and Hardware Kit, part number 4312-54121, is a rear disc brake service kit for select Ford F-150 applications. It combines coated rotors, ceramic pads, and brake hardware components in one package for a complete rear brake refresh.

Fits 2015-2020 Ford F-150, rear. Fits 2012-2014 Ford F-150, rear, 6 lug wheels, compatible with drum brake hardware kits.

Key Features

• DFC 3000 ceramic brake pads for passenger vehicles and light-duty trucks
• Low-dust formulation with stable friction across a wide temperature range
• Post-cured and scorched pads to reduce initial break-in time
• Premium rubber-steel-rubber shims for improved noise, vibration, and harshness control
• GeoSpec coated rotors with a silver-gray corrosion-resistant finish
• Dry-to-dry rotor handling for installation without oil removal
• Non-directional rotor finish for more even pad bed-in and smoother stops
• Hardware kit uses PTFE coating, vulcanized rubber, and stainless steel construction

Product Details

The 4312-54121 brake kit is built around DFC GEOSPEC coated rotors and DFC 3000 ceramic pads for rear axle service on the Ford F-150. The rotor casting follows G3000/G11H18 cast iron specifications and is machined to OE-style tolerances, then finished with a non-directional surface to support consistent pad contact. The coated rotor surface is designed to resist rust better than conventional paint or zinc finishes, while the dry packaging helps reduce prep time during brake work. The included hardware kit addresses worn or corroded brake clips and related components that can contribute to noise and uneven pad movement.

Common Brake Issues This Kit Can Address

• Rear brake noise from worn hardware or uneven pad contact
• Brake dust buildup from older pad material
• Rotor rust and surface corrosion on the braking face and hat area
• Uneven braking feel caused by fatigued hardware or worn rotors
• Longer stopping distances from worn rear pads and rotors

Installation Notes

Verify rear fitment by model year and wheel configuration before ordering. For 2012-2014 Ford F-150 trucks, this kit applies to 6 lug wheels and drum brake hardware kit configurations. For 2015-2020 Ford F-150 trucks, it applies to rear applications with manual parking brake compatibility noted in the fitment data. Clean all mating surfaces, inspect caliper condition, and follow proper torque procedures during installation. The rotor coating is designed to be swept away by the pad during normal braking.

Quality Assurance

Each DFC GEOSPEC rotor is inspected for critical dimensions and balance, with vented rotors electronically mill-balanced when required. DFC 3000 pads are 100% post cured and assembled with premium shims for stable performance and improved NVH control. Rotors include a 12-month warranty against defects in material and workmanship. Part number 4312-54121 is a direct-fit service kit for the listed Ford F-150 rear applications.