Designed for smoother stopping at the front axle, the DYNAMIC FRICTION brake rotor 604-31085 is a GEOSPEC-coated blank rotor engineered as a front-position replacement. It's a direct-fit replacement for a range of BMW models, among them the 2008-2013 BMW 135i, 2013 BMW 135is and 2007-2013 BMW 328i. See the Buyer's Guide tab for the full list (part number also written 60431085).
A non-directional finish helps promote faster break-in and smoother stops, and DFC designed this rotor to meet the same form, fit, and function as OEM brake rotors. For balanced, even braking, it's best practice to replace the rotors on both sides of the axle as a matched pair, though each rotor is sold individually and this listing is for one.
Is this the right brake rotor for a 2007-2013 BMW 328i?
Yes. It's a direct-fit front rotor for the 2007-2013 BMW 328i, and it also fits the 2008-2013 BMW 135i and 2013 BMW 135is. Check the Buyer's Guide tab to confirm your exact vehicle.
Is this a front or rear disc brake rotor?
The catalog lists this rotor for the front position on the applications shown.
What is the GEOSPEC coating?
It's a corrosion-protection coating DFC states provides superior protection compared to zinc or conventional painting on the rotor.
Do I need to clean the rotor before installing it?
No. This rotor is ready to install with no additional pre-degreasing preparation needed, which saves time during installation.
Should I replace both rotors at the same time?
For even, balanced braking it's best practice to replace both rotors on the same axle as a matched pair. Each rotor is sold individually and this listing is for one.
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.
