12:32CDL Air Brakes Test 2024 (MOST Common Questions and Answers)
Driving Academy | CDL Truck Driving School
Watch on YouTubeSpecifications
- Brake Disc Thickness
- 22 mm
- Centering Diameter
- 80 mm
- Height
- 68 mm
- Minimum thickness
- 19.4 mm
- Outer Diameter
- 278 mm
- Brake Disc Type
- internally vented
- Bolt Hole Circle Ø
- 112
- Hole Arrangement/Number
- 05/10
- Supplementary Article/Supplementary Info 2
- without wheel hub
- Weight
- 6.5
Vehicle Manufacturers
MERCEDES(6 items)
MERCEDES
126 420 00 05
MERCEDES
126 420 01 72
MERCEDES
126 421 00 12
MERCEDES
A 126 420 00 05
MERCEDES
A 126 420 01 72
MERCEDES
A 126 421 00 12
EVOBUS(6 items)
EVOBUS
1264200005
EVOBUS
1264200172
EVOBUS
1264210012
EVOBUS
A1264200005
EVOBUS
A1264200172
EVOBUS
A1264210012
AMC(1 items)
AMC
FO2278
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12:32
14:21
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 YouTubeAbout this part
A 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.
Frequently asked questions
Does 8DD 355 100-401 have compatible (OE) part numbers?
Yes — it is linked to 13 OE-compatible part number(s), shown in the compatible parts section above.