Keep your medium-duty truck stopping smoothly with the DYNAMIC FRICTION brake rotor (P/N 604-37012), a rear disc brake rotor built as a direct-fit replacement designed to match the form, fit, and function of the OEM rotor. It covers the 2022-2026 Chevrolet LCF 4500HD plus a range of 2022-2024 Chevrolet LCF trucks and 2022-2024 Isuzu NPR-HD, NPR-XD, NQR, and NRR models — see the Buyer's Guide tab for the full list.
It arrives ready to install with no additional pre-degreasing preparation needed. This rear rotor is a wear part best replaced as a matched pair; for even, balanced braking, replace both sides on the axle together. If a worn, scored, or warped rear rotor is behind pulsation or reduced braking, this unit replaces it.
What is the DYNAMIC FRICTION 604-37012?
It is a rear brake rotor from Dynamic Friction Company, CNC-machined and mill-balanced as a direct-fit replacement designed to match the form, fit, and function of the OEM rotor.
Which vehicles does this rotor fit?
It fits the 2022-2026 Chevrolet LCF 4500HD plus 2022-2024 Chevrolet LCF trucks and 2022-2024 Isuzu NPR-HD, NPR-XD, NQR, and NRR. Check the Buyer's Guide tab for the complete application list.
Should I replace both rear rotors at once?
It is sold individually, but replacing both sides on the axle together as a matched pair is recommended for even, balanced braking.
What is this rotor made of?
It is made from premium G3000/G11H18 iron castings engineered for strength, stability, and durability.
Does the rotor need cleaning before installation?
No. It arrives ready to install with a non-directional finish and requires no additional pre-degreasing preparation, saving time during the job.
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.
