5:57Specifications
- Brake Disc Thickness
- 36 mm
- Centering Diameter
- 79 mm
- Height
- 77 mm
- Inner Diameter
- 153.7 mm
- Minimum thickness
- 34.4 mm
- Outer Diameter
- 348 mm
- Brake Disc Type
- internally vented
- Machining
- High-carbon
- Surface
- Coated
- Bolt Hole Circle Ø
- 120
- Hole Arrangement/Number
- 05/06
- Wheel Bolt Bore Diameter
- 14.5
- Supplementary Article/Supplementary Info 2
- without wheel hub
- Weight
- 13.4
Vehicle Manufacturers
BMW(4 items)
BMW
34 11 6 766 871
BMW
34 11 6 779 467
BMW
6 766 871
BMW
6 779 467
Other brands compatible with the same OE
13 total
ATE
24.0136-0106.2
Brake disc
ATE
24.0136-0142.2
Brake disc
BLUE PRINT
ADB114368
Brake disc
BOSCH
0 986 479 774
Brake disc
BOSCH
0 986 479 E20
Brake disc
FEBI BILSTEIN
104806
Brake disc
NK
3415126
Brake disc
NK
341572
Brake disc
QUARO
QD0030HC
Brake disc
SWAG
20 10 4806
Brake disc
TRISCAN
8120 111033C
Brake disc
TRW
DF6003S
Brake disc
VAICO
V20-80010
Brake disc
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5:57
14:21
12:32CDL Air Brakes Test 2024 (MOST Common Questions and Answers)
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 355 120-791 have compatible (OE) part numbers?
Yes — it is linked to 4 OE-compatible part number(s), shown in the compatible parts section above.