Dynamic Friction Company Disc Brake Rotor P/N:604-31089
Get smoother, better-balanced stops with the DYNAMIC FRICTION brake rotor 900-31089, a front disc brake rotor built from DFC's high-carbon alloy and cast for daily driving durability. It installs as a direct-fit replacement for the listed applications, including the 2007-2016 BMW 328i, 2013-2018 BMW 320i, 2008-2013 BMW 325i, 2017-2020 BMW 430i, and 2012-2015 BMW X1 — see the "Vehicles it fits" section for the full list of covered BMW models.
A fine-turned finish (16 RMS) aids initial rotor and pad break-in, and the rotor is held to tight tolerances — disc thickness variation of 0.010 mm maximum and lateral runout of 0.050 mm maximum. For even, balanced braking, it is best practice to replace the rotors on the same axle together as a matched pair; this listing is for one rotor.
What is the DYNAMIC FRICTION 900-31089?
It is a front disc brake rotor made from DFC high-carbon alloy with premium G3000/G11H18 iron castings, precision mill-balanced and Geomet® coated for corrosion protection.
Which vehicles does this front rotor fit?
It is a direct-fit replacement for listed BMW models such as the 2007-2016 328i, 2013-2018 320i, 2008-2013 325i, 2017-2020 430i, and 2012-2015 X1. Check the "Vehicles it fits" section for the complete list.
Should I replace both front rotors at the same time?
For even, balanced braking it is best practice to replace both rotors on the same axle together as a matched pair. This listing is for one rotor, so order two for a complete axle set.
What does the Geomet coating do?
The Geomet® coating is applied to provide high-performance corrosion protection, helping the rotor resist corrosion on the surfaces it covers.
What tolerances is this rotor built to?
It is held to a disc thickness variation of 0.010 mm maximum and a lateral runout of 0.050 mm maximum, and is 100% precision mill-balanced for smoother stops.
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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.