Bring your heavy-duty truck's front brakes back to spec with the Dynamic Friction brake rotor 604-40108 (also written 60440108), a DFC GEOSPEC coated blank rotor. It installs as a direct-fit front replacement designed to meet the same form, fit, and function as the OEM rotor on the 2008-2010 Dodge Ram 4500 and Ram 5500, the 2008-2010 Sterling Truck Bullet 45 and Bullet 55, and the 2011-2026 Ram 4500 and Ram 5500 — see the Buyer's Guide tab for engine-level fitment.
A non-directional finish promotes faster break-in and smoother stops, and the rotor ships ready to install with no additional pre-degreasing prep needed. As a front-axle wear part, it is best practice to replace both front rotors together as a matched pair for even, balanced braking.
Is the Dynamic Friction 604-40108 a front rotor?
Yes. This disc brake rotor is cataloged for the front position on the listed applications. Check the Buyer's Guide tab to confirm fitment for your specific truck.
What is the DFC GEOSPEC coating?
It is a corrosion-protective finish that DFC states provides superior corrosion protection over zinc or conventional painting on the rotor.
Is this a vented rotor?
It uses an original equipment (OE) vane configuration, which supports proper heat dissipation during braking.
Does it need any prep before installing?
No. It ships ready to install with no additional pre-degreasing preparation needed, which saves time during installation.
What is it made of?
It is engineered with premium G3000/G11H18 iron castings for strength, stability, and durability.
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.
