12:32CDL Air Brakes Test 2024 (MOST Common Questions and Answers)
Driving Academy | CDL Truck Driving School
Watch on YouTubeMERCEDES
420 423 20 00
MERCEDES
A 420 423 20 00
RENAULT
43 20 600 Q1B
RENAULT
43 20 66R N0A
RENAULT
43 20 66R P0A
RENAULT
44 0A 049 49R
NISSAN
43206-00Q1B
NISSAN
43206-00Q1D
NISSAN
43206-6RN0A
INFINITI
43206-00Q1B
INFINITI
43206-00Q1D
INFINITI
43206-6RN0A
9 total
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12:32Driving Academy | CDL Truck Driving School
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5:57A brake disc (rotor) is the metal disc that the brake pads clamp onto to slow the wheel.
When the pads press against the spinning disc, friction converts the vehicle's motion into heat, which the disc dissipates; commercial vehicle discs are large and heat-resistant for high loads and repeated braking.
Mounted at the wheel as part of a disc brake. Because braking is safety critical, discs and pads are inspected on schedule and replaced by axle set by a qualified technician.
Yes — it is linked to 12 OE-compatible part number(s), shown in the compatible parts section above.