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 Thickness
- 28 mm
- Centering Diameter
- 120 mm
- Height
- 98 mm
- Inner Diameter
- 172.1 mm
- Minimum thickness
- 25 mm
- Outer Diameter
- 303 mm
- Brake Disc Type
- internally vented
- Surface
- Coated
- Bolt Hole Circle Ø
- 145
- Hole Arrangement/Number
- 06/06
- Wheel Bolt Bore Diameter
- 15
- Supplementary Article/Supplementary Info 2
- without wheel hub
- Weight
- 10.1
Vehicle Manufacturers
MAN(1 items)
MAN
65508030002
VW(2 items)
VW
2N0615601A
VW
2N0615601C
Other brands compatible with the same OE
12 total
A.B.S.
18631
Brake disc
ATE
24.0128-0324.1
Brake disc
BREMBO
09.C639.21
Brake disc
DELPHI
BG9267C
Brake disc
FERODO
DDF3105C-1
Brake disc
HELLA
8DD 355 129-991
Brake disc
JURID
563750JC-1
Brake disc
OPTIMAL
BS-9786HC
Brake disc
TEXTAR
92295303
Brake disc
TRISCAN
8120 291093C
Brake disc
VALEO
673333
Brake disc
ZIMMERMANN
600.3257.20
Brake disc
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9:44
12:32CDL Air Brakes Test 2024 (MOST Common Questions and Answers)
Driving Academy | CDL Truck Driving School
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14:21About 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 355 129-991 have compatible (OE) part numbers?
Yes — it is linked to 3 OE-compatible part number(s), shown in the compatible parts section above.