Dynamite Friction 4512-21074 Disc Brake Kit - Rear

Rear Brake Kit for Hyundai and Kia

The DFC GEOSPEC Coated Rotors with 5000 Advanced Brake Pads - Ceramic and Hardware kit, part number 4512-21074, is a rear disc brake service kit built for select Hyundai and Kia applications. It combines coated rotors, ceramic brake pads, and brake hardware in one package for a complete rear brake refresh.

Compatible With 2017-2020 Hyundai Elantra rear, 2017-2020 Hyundai Ioniq rear, 2017-2019 Kia Niro rear, and 2021-2022 Kia Niro rear with foot parking brake. Part number 4512-21074 is also listed for 2020 Kia Niro rear with foot parking brake.

Key Features

• DFC GEOSPEC coated rotors with a silver-gray corrosion-resistant finish
• Dry-processed rotors that are ready to install without oil removal
• OE-style cast iron rotor construction with tight machining tolerances
• Non-directional rotor finish for even pad bed-in and smoother braking
• DFC 5000 Advanced ceramic brake pads with post-cured friction material
• Scorched pads to reduce initial break-in time
• Premium rubber-steel-rubber shims for improved noise, vibration, and harshness control
• Brake hardware with PTFE coating, vulcanized rubber, and stainless steel

Product Details

DFC’s GEOSPEC rotor line is built around OE-spec durability and stability, with each rotor machined to tight tolerances and inspected for critical dimensions. The coated surface helps resist rust better than conventional paint or zinc finishes, while the non-directional finish supports quieter operation and more even pad contact. The 5000 Advanced pads are formulated for stable friction performance and are assembled with shims that help reduce brake noise. The hardware kit adds corrosion protection and OE-style fitment for the rear brake assembly.

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

Common Brake Issues This Kit Addresses

• Rear brake noise from worn pads or fatigued hardware
• Rust buildup on rotor surfaces
• Uneven rear braking feel
• Longer stopping distances caused by worn friction material
• Caliper movement or spring tension loss from aged hardware

Installation Notes

Use this rear brake kit on the listed Hyundai Elantra, Hyundai Ioniq, and Kia Niro applications only. Confirm rear axle configuration and foot parking brake setup before ordering, especially on Kia Niro models. The rotors are shipped dry and ready for installation, which reduces prep time during service. Follow the vehicle manufacturer’s brake service procedures and bed-in instructions after installation.

Quality Assurance

Each DFC GEOSPEC rotor is inspected for balance and critical dimensions to meet OE specifications. The rotors include a 12-month warranty against defects in material and workmanship.