12:32CDL Air Brakes Test 2024 (MOST Common Questions and Answers)
Driving Academy | CDL Truck Driving School
Watch on YouTubeSpecifications
- Brake Disc Thickness
- 30 mm
- Centering Diameter
- 79 mm
- Height
- 81 mm
- Inner Diameter
- 165 mm
- Minimum thickness
- 28.4 mm
- Outer Diameter
- 324 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
- 16.7
- Supplementary Article/Supplementary Info 2
- without wheel hub
- Number of bolts/screws
- 1
- Weight
- 10.8
Vehicle Manufacturers
BMW(4 items)
BMW
34 11 6 750 265
BMW
34 11 6 864 049
BMW
6750265
BMW
6864049
Other brands compatible with the same OE
23 total
A.B.S.
17534
Brake disc
ATE
24.0130-0117.1
Brake disc
BLUE PRINT
ADB114388
Brake disc
BOSCH
0 986 479 002
Brake disc
CIFAM
800-1068C
Brake disc
EGT
410202EGT
Brake disc
FEBI BILSTEIN
32177
Brake disc
FTE
9081119
Brake disc
HELLA PAGID
8DD 355 129-771
Brake disc
MAXGEAR
19-2525
Brake disc
METELLI
23-1068C
Brake disc
MEYLE
315 521 3058
Brake disc
MEYLE
383 521 3058/PD
Brake disc
MINTEX
MDC1795
Brake disc
NK
201559
Brake disc
NK
311559
Brake disc
NK
341559
Brake disc
QUARO
QD0380HC
Brake disc
SWAG
20 93 2177
Brake disc
TEXTAR
92122805
Brake disc
TRISCAN
8120 11159C
Brake disc
TRW
DF4390S
Brake disc
VALEO
197360
Brake disc
RELATED
Parts in this category
Other parts in the same category.
Featured videos
Watch maintenance and replacement tutorials on YouTube.
12:32
12:53
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 355 129-771 have compatible (OE) part numbers?
Yes — it is linked to 4 OE-compatible part number(s), shown in the compatible parts section above.