Restore confident rear braking with everything in one box: the Dynamic Friction Company Disc Brake Kit 4512-03125 (also written 451203125) is a complete rear disc brake kit pairing GEOSPEC coated rotors, DFC 5000 ceramic pads, and hardware. It's a direct-fit replacement for the 2015-2019 Hyundai Sonata, 2014-2016 Kia Cadenza, and 2017-2019 Kia Optima — see the Buyer's Guide tab for engine-level fitment.
Designed to meet the same form, fit, and function as OEM brake components, this kit covers the full rear axle so both sides are replaced together for balanced braking. Installs with no modifications required.
What's included in this kit?
This rear kit includes GEOSPEC coated brake rotors, DFC 5000 ceramic brake pads, and a disc brake hardware kit — the components needed to service the rear axle.
Which vehicles does it fit?
It's a direct-fit replacement for the 2015-2019 Hyundai Sonata, 2014-2016 Kia Cadenza, and 2017-2019 Kia Optima. Check the Buyer's Guide tab to confirm engine-level fitment for your vehicle.
Is this a front or rear kit?
This is a rear disc brake kit. It supplies the rotors, pads, and hardware to service the rear axle.
Do the rotors need cleaning before install?
No. The GEOSPEC coated rotors are processed dry, shipped dry, and ready to install with no additional degreasing prep needed.
What benefits do the ceramic pads offer?
For everyday street driving, the DFC 5000 ceramic pads produce low dust, quiet operation, and a smooth, consistent pedal feel, with Rubber-Steel-Rubber shims for improved NVH.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
