Dynamic Friction Company Disc Brake Rotor P/N:900-27051
Dynamic Friction 604-27051 front brake rotor for the 2025-2026 Volvo EC40 and other vehicles gives the brake pads a vented, GEOSPEC-coated disc to press against. As a disc brake rotor, it turns pad pressure into friction that slows the wheel.
Pedal pulsation, a shake in the steering wheel while braking or grooves and scoring on the face can mean this rotor is worn, though worn brake pads or a sticking caliper can be behind those signs too. This listing is one rotor for the front axle; the other side is a separate listing, and the two are normally replaced together.
It is listed for a wide range of Volvo and Polestar models, including the 2025-2026 Volvo EX40 and the 2019-2026 Volvo V60 Cross Country, and the front axle takes two rotors. It is designed to meet the same form, fit and function as OEM brake rotors.
Fit and size
Build and materials
Is the Dynamic Friction 604-27051 rotor right for the 2025-2026 Volvo EC40?
Yes. Dynamic Friction 604-27051 is listed for the 2025-2026 Volvo EC40 and goes on the front axle, two per vehicle. For a different model, look in the "Vehicles it fits" section.
Is this front brake rotor vented or solid?
Vented. Dynamic Friction 604-27051 has a vane configuration for heat dissipation, a 345 mm outside diameter and five lug holes on a 108 mm bolt circle.
What is the discard thickness of this front rotor?
The discard thickness is 27.5 mm; the nominal thickness is 30 mm. A rotor that measures at or below 27.5 mm is due for replacement.
Can pedal pulsation come from a worn front rotor?
It can. Pedal pulsation, steering-wheel shake under braking or visible grooves can mean the rotor is worn. A shop can check runout and thickness against the 27.5 mm discard limit.
Do I need to degrease this GEOSPEC-coated rotor before installing it?
No. The rotor comes ready to install, so no pre-degreasing step is needed before it goes on.
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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.