Refresh your rear brakes in one box with the Dynamic Friction brake kit 4512-21051, a complete rear disc brake kit that installs on the 2018-2019 Kia Niro and 2014-2016 Kia Optima. It pairs DFC GeoSpec coated rotors with DFC 5000 Advanced ceramic pads and the matching hardware, so a rear brake job goes together the first time. See the "Vehicles it fits" section to confirm the engine for your vehicle.
- GeoSpec coated rotors: cast to the G3000/G11H18 cast-iron specification and finished with a silver-gray coating designed to fight rust better than conventional paint or zinc coatings. Shipped dry and ready to install with no pre-degreasing.
- DFC 5000 Advanced ceramic pads: 100% asbestos-free, post-cured and scorched to shorten break-in, with Rubber-Steel-Rubber shims for improved noise, vibration, and harshness.
- Hardware included: the kit ships with disc brake hardware built to OE form, fit, and function, using PTFE-coated, stainless steel, and vulcanized-rubber pieces.
- Smooth stops: a non-directional rotor finish promotes faster, more even pad bed-in for quieter, smoother braking.
This is a rear-axle kit. For balanced braking, service the rear axle as a set. If your worn rear rotors, pads, and hardware are the cause of noise or vibration, this kit replaces them.
Frequently Asked Questions
What does this brake kit include?
It's a complete rear brake kit with DFC GeoSpec coated rotors, DFC 5000 Advanced ceramic pads, and the matching disc brake hardware kit for a full rear brake job.
Which vehicles does kit 4512-21051 fit?
It's listed for the 2018-2019 Kia Niro and 2014-2016 Kia Optima. Check the "Vehicles it fits" section to confirm the correct engine and application for your vehicle.
Is this a front or rear brake kit?
This is a rear-axle kit. It supplies the rotors, pads, and hardware for the rear brakes only.
Are the brake pads ceramic?
Yes. The DFC 5000 Advanced pads are a 100% asbestos-free ceramic formulation with Rubber-Steel-Rubber shims for improved noise, vibration, and harshness characteristics.
Do the rotors need cleaning before installation?
No. The GeoSpec coated rotors are processed dry and shipped dry, so they install without additional degreasing or preparation.
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