Dynamic Friction Company Disc Brake Rotor 604-31181D
Dynamic Friction Company Disc Brake Rotor 604-31181D

Dynamic Friction Company Disc Brake Rotor P/N:604-31181D

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$123.99
MPN: 604-31181D
Item Package Quantity: 1
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Dynamic Friction Company Disc Brake Rotor P/N:604-31181D
Dynamic Friction Company Disc Brake Rotor P/N:604-31181D
$123.99

Help reduce brake vibration and stop with confidence using the Dynamic Friction brake rotor 604-31181D, a GEOSPEC-coated disc brake rotor cataloged for the rear right position. It drops in across a wide range of BMWs, including the 2021-2026 BMW X5 and the 2020-2026 BMW 840I — see the Buyer's Guide tab for the full list of covered models and engines.

The rotor gives your brake pads a true, balanced friction surface to grip:

  • CNC-machined and mill-balanced: precision-cut to tight tolerances for smoother stopping with minimal vibration at speed.
  • OE vane configuration: matches the original vane configuration to support proper heat dissipation.
  • G3000/G11H18 iron castings: premium iron for strength, stability, and durability.
  • GEOSPEC coating: provides corrosion protection beyond zinc or conventional painting, and arrives ready to install with no pre-degreasing needed.

Designed to meet the same form, fit, and function as the OEM rotor, it carries a non-directional finish to promote faster break-in. For even, balanced braking, replacing the rotors on both sides of the axle together as a matched set is recommended.

Frequently Asked Questions

Which BMW models does the 604-31181D rotor fit?

It's cataloged for the rear right position on BMW models including the 2021-2026 BMW X5 and the 2020-2026 BMW 840I. Check the Buyer's Guide tab for the complete list.

Can I use this rotor when replacing the brakes and rotors on a 2021-2026 BMW X5?

Yes, for the rear: it's cataloged for the rear right position on the 2021-2026 BMW X5, so it's a rear rotor, not a front unit.

What is the GEOSPEC coating?

It's Dynamic Friction's protective rotor coating that provides corrosion protection beyond zinc or conventional painting. The rotor also arrives ready to install with no pre-degreasing required.

What are these rotors made of?

They're engineered with premium G3000/G11H18 iron castings for strength, stability, and durability, and are CNC-machined and mill-balanced for smooth, low-vibration stops.

Do I need to replace both rotors at once?

This listing is for one rotor. For even, balanced braking it's best to replace both rotors on the same axle together as a matched set.

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