Dynamite Friction 4512-03127 Disc Brake Kit - Rear

Rear Brake Kit for Kia Optima and Hyundai Sonata

The Dynamite Friction DFC GEOSPEC Coated Rotors with 5000 Advanced Brake Pads - Ceramic and Hardware kit is a rear disc brake service kit built for select 2016-2020 Kia Optima and 2016-2019 Hyundai Sonata applications. Part number 4512-03127 combines coated rotors, ceramic pads, and matching hardware components in one package for a complete rear brake refresh.

Key Features

• Rear disc brake kit for select Kia Optima and Hyundai Sonata models
• DFC GEOSPEC coated rotors with a silver-gray corrosion-resistant finish
• Dry-processed rotors arrive ready to install
• Non-directional rotor finish supports even pad bed-in and smoother braking
• DFC 5000 Advanced ceramic brake pads with post-cured friction material
• Premium rubber-steel-rubber shims for improved noise and vibration control
• Hardware kit uses PTFE coating, vulcanized rubber, and stainless steel

Product Details

DFC GEOSPEC rotors are cast to OEM-style G3000/G11H18 specifications, machined to tight tolerances, and inspected for balance and critical dimensions. The coated surface helps resist rust better than conventional paint or zinc finishes, while the dry packaging avoids the need to clean oil from the rotor before installation. The 5000 Advanced pads are post cured and scorched to reduce initial break-in time and deliver stable friction performance from the first stop. This part number, 4512-03127, is a practical choice for rear brake service on Kia Optima and Hyundai Sonata vehicles where consistent pedal feel and quieter operation matter.

What This Brake Kit Helps Address

• Rear brake noise from worn pads or fatigued hardware
• Rust buildup on exposed rotor surfaces
• Uneven braking caused by worn or warped rotors
• Excessive caliper movement from aged hardware
• Reduced stopping performance from worn friction material

Installation Notes and Fitment

Fits 2016-2020 Kia Optima, rear.

Fits 2016-2019 Hyundai Sonata, rear.

Fits 2016-2019 Hyundai Sonata, rear, manual parking brake applicable on this disc brake rotor.

Fits 2016-2019 Kia Optima, rear, manual parking brake applicable on this disc brake rotor.

Fits 2018-2019 Kia Optima, rear, 320mm front disc.

Fits 2018-2019 Kia Optima, rear, 305mm front disc.

Verify rotor size and parking brake configuration before ordering. Clean hub surfaces thoroughly, follow proper torque procedures, and bed in the pads according to standard brake service practice. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Quality Assurance

Each DFC GEOSPEC rotor is 100% inspected after machining, and vented rotors are electronically mill-balanced when required. The rotors include a 12-month warranty against defects in material and workmanship. Part number 4512-03127 is built to OE-style specifications for durability, reliability, and stable braking performance.