OE MBR9004 For Volvo brake discs Carbon Ceramic Durable Low Noise Auto Brake System actros brake disc

A brake disc, in simple terms, is a circular plate that also rotates when the car is moving. The brake caliper clamps the brake disc to generate braking force, and when the brake is applied, it clamps the brake disc to slow down or stop. The braking effect of the brake disc is good, and it is easier to maintain than the drum brake.