Dynamic Friction 4312-03021 Disc Brake Kit - Rear

Brake Kit Overview

The Dynamic Friction 4312-03021 disc brake kit combines coated rotors, 3000 ceramic brake pads, and hardware for rear brake service applications. It is built for drivers who want OE-style braking performance, corrosion protection, and consistent pedal feel on select Hyundai Sonata, Hyundai Tucson, and Kia Cadenza models.

Fits 2015-2019 Hyundai Sonata, rear. Fits 2016-2017 Hyundai Tucson, rear. Fits 2014-2016 Kia Cadenza, rear.

Key Features

• DFC GEOSPEC coated rotors with a silver-gray finish that resists rust better than conventional paint or zinc coatings.
• 3000 ceramic brake pads with low dust, stable friction, and strong fade resistance across a wide temperature range.
• Post-cured pads and scorched friction surfaces for more consistent stopping performance from the first stop.
• Premium rubber-steel-rubber shims for improved noise, vibration, and harshness control.
• Dry-processed rotors that arrive ready to install without additional cleaning or prep.
• Part number 4312-03021 for rear brake service on supported Hyundai and Kia applications.

Detailed Description

Dynamic Friction 4312-03021 is a complete rear disc brake kit engineered around coated rotors, ceramic pads, and matching hardware. The rotor design uses G3000/G11H18 cast iron and a non-directional finish to support even pad bed-in, quieter operation, and stable braking performance. The coating is applied to help protect the rotor surface from corrosion while keeping the part ready for installation.

The pad set is formulated for passenger vehicles and light-duty trucks, with low copper content and friction stability that suits everyday braking demands. This kit is a practical choice for Hyundai Sonata rear brake service, Hyundai Tucson rear brake service, and Kia Cadenza rear brake service where OE-style fit and predictable stopping behavior matter. The part number 4312-03021 is also useful when matching a direct replacement brake kit for these applications.

What It Helps Address

• Brake noise caused by worn hardware or uneven pad contact.
• Rust buildup on rotor surfaces.
• Excessive brake dust from older pad materials.
• Uneven or inconsistent braking feel during normal driving.
• Reduced stopping performance from worn rear brake components.

Installation Notes

Fits 2015-2019 Hyundai Sonata, rear; 2016-2017 Hyundai Tucson, rear; and 2014-2016 Kia Cadenza, rear. One fitment note indicates manual parking brake applicability on certain rear rotor applications, so verify the parking brake configuration before installation. The rotors are shipped dry and ready to install, which reduces prep time during brake service.

Quality Assurance

DFC states that the rotors are machined to tight tolerances, inspected for critical dimensions, and checked for balance on vented designs. The rotors carry a 12-month warranty against defects in material and workmanship. Part number 4312-03021 reflects a complete brake kit built to OE-style form, fit, and function standards.