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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FORD USA
3M512A315A1E
FORD USA
3M512A315AB
FORD USA
3M512A315AC
FORD USA
3M512A315AD
FORD USA
3M512A315AE
FORD USA
3M512A315CA
FORD USA
7M51-2A315-FA
FORD USA
9M512A315BA
FORD USA
9M512A315BB
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9:44Driving Academy | CDL Truck Driving School
Watch on YouTube
12:53
14:21A 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 20 OE-compatible part number(s), shown in the compatible parts section above.