Brake rotors are the spinning discs the pads clamp against — they absorb and dissipate brake heat.
Vented or solid cast-iron (sometimes carbon-ceramic) discs bolted to the hub. Pad friction generates heat that radiates through the vanes.
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Replacement runs $200–$700 including parts and 0.8-1.8 hours labor. Exact cost depends on vehicle, parts tier (OEM vs aftermarket), and local labor rate.
Expected lifespan is 50,000-80,000 miles (often replaced with pads). Driving conditions, climate, and maintenance affect real-world life.
Steering-wheel shake when braking; Pulsing brake pedal; Deep grooves or scoring; Heat cracks / blue spots; Below minimum thickness.
Most modern brake rotorss are sealed units that get replaced rather than rebuilt. A shop will diagnose, confirm with a load or output test, then swap the unit and verify operation.
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