9:44CDL Class A FULL In Cab Inspection and Air Brake Test 2023 - Pass Your CDL Trucking Road Test
Driving Academy | CDL Truck Driving School
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Brake disc
PORSCHE
477.405.083A
PORSCHE
477405083D
PORSCHE
90135104116
PORSCHE
90135104118
PORSCHE
90135104120
PORSCHE
90135140116
PORSCHE
911.351.041.20
5 total
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9:44Driving Academy | CDL Truck Driving School
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14:21
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 7 OE-compatible part number(s), shown in the compatible parts section above.