Help restore smooth, confident rear braking with the Dynamic Friction brake rotor (P/N 604-31042), a rear brake rotor that installs as a direct-fit replacement for the listed applications. It fits many vehicles, among them the 2001-2005 BMW 320i, 2000 BMW 323Ci and 1998-2000 BMW 323i; see the "Vehicles it fits" section for the full list. This DFC GEOSPEC blank rotor is CNC-machined to tight tolerances and built to meet the same form, fit, and function as the OEM rotor it replaces.
Rotors wear as a matched set, so replacing both sides of the axle together is recommended for even, balanced braking. This listing is for one rotor. If worn, warped, or scored rotors are behind a pulsing pedal or vibration under braking, this is the mechanical replacement.
What vehicles does the Dynamic Friction brake rotor 604-31042 fit?
It fits many vehicles, among them the 2001-2005 BMW 320i, 2000 BMW 323Ci and 1998-2000 BMW 323i. See the "Vehicles it fits" section to confirm your exact vehicle.
Is this a front or rear disc brake rotor?
This is a rear rotor, cataloged for the rear axle of the listed BMW applications.
Is this a blank rotor or is it slotted or drilled?
It is a blank (smooth-face) rotor with a non-directional finish — no slots or cross-drilling.
What does the GEOSPEC coating do?
The GEOSPEC coating provides corrosion protection that DFC rates as superior to zinc or conventional painting, helping the rotor resist rust.
Do I need to replace both rear rotors at once?
It's not strictly required, but replacing both sides as a matched pair is recommended for even, balanced braking. This listing is for one rotor.
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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.
