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
Watch on YouTubeMERCEDES
9434210312
Brake disc
MERCEDES
000 421 37 12
MERCEDES
943 421 03 12
MERCEDES
943 421 04 12
MERCEDES
943 421 05 12
MERCEDES
A 000 421 37 12
MERCEDES
A 943 421 03 12
MERCEDES
A 943 421 04 12
MERCEDES
A 943 421 05 12
MERCEDES
A0004213712
MERCEDES
A9434210312
MERCEDES
A9434210412
MERCEDES
A9434210512
12 total
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Other parts in the same category.
Watch maintenance and replacement tutorials on YouTube.
9:44Driving Academy | CDL Truck Driving School
Watch on YouTube
12:32Driving Academy | CDL Truck Driving School
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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 13 OE-compatible part number(s), shown in the compatible parts section above.