Dynamic Friction 4312-03024 Disc Brake Kit - Rear

Overview

This Dynamic Friction disc brake kit combines coated rotors, ceramic brake pads, and hardware for rear brake service. It is built for drivers looking for a direct-fit brake solution for select Kia Optima and Hyundai Sonata applications, with OE-style fitment and corrosion-resistant rotor protection.

Key Features

• GEOSPEC coated rotors resist rust and arrive dry, ready for installation.
• 3000 ceramic brake pads deliver stable friction, low dust, and strong fade resistance.
• Premium rubber-steel-rubber shims improve noise, vibration, and harshness control.
• Rotor machining includes a non-directional finish for smoother pad bed-in and quieter stops.
• Hardware kit components use PTFE coating, vulcanized rubber, and stainless steel.

Detailed Description

Part number 4312-03024 is a rear disc brake kit engineered for select 2016-2020 Kia Optima and 2016-2019 Hyundai Sonata models. The kit pairs DFC GEOSPEC coated rotors with DFC 3000 ceramic pads and matching hardware, giving you the core components needed for a complete rear brake service on these applications. The coated rotor surface helps fight corrosion, while the pad formulation is designed for consistent braking performance across a wide temperature range. This part number, 4312-03024, is a practical choice when replacing worn rear brake components on a Kia Optima or Hyundai Sonata.

DFC GEOSPEC rotors are machined to OE-style tolerances and finished to promote even pad bedding and smoother operation. The 3000 ceramic pads are post-cured and scorched to reduce initial break-in time and support reliable stopping from the first stop. This disc brake kit is also suited to rear brake service where noise control, corrosion resistance, and stable pedal feel matter.

What It Helps Solve

• Brake noise caused by worn pads or fatigued hardware
• Uneven braking from corroded or worn rotor surfaces
• Excessive dust buildup from older brake pad material
• Reduced stopping consistency from heat-related fade
• Harshness or vibration during rear brake operation

Installation Notes and Tips

Fits 2016-2020 Kia Optima, rear. Fits 2016-2019 Hyundai Sonata, rear. Some Hyundai Sonata and Kia Optima applications note manual parking brake compatibility or specific front disc size requirements, so verify the exact vehicle configuration before ordering. The rotors are processed dry and ready to install without additional preparation. Part number 4312-03024 should be matched to the vehicle’s rear brake setup before installation.

Quality Assurance

DFC states that each rotor is inspected to meet OE specifications, and the rotor coating is engineered for durable corrosion resistance. The manufacturer also lists a 12-month warranty against defects in material and workmanship for the rotors in this kit.