5:57Specifications
- Brake Disc Thickness
- 20 mm
- Centering Diameter
- 75 mm
- Height
- 76 mm
- Minimum thickness
- 18.4 mm
- Outer Diameter
- 300 mm
- Fitting Position
- Rear Axle
- Bolt Hole Circle Ø
- 120
- Wheel Bolt Bore Diameter
- 14.5
- Number of Holes
- 5
- Brake Disc Type
- Vented
- Surface
- Zink flake coated
- Supplementary Article/Supplementary Info 2
- with bolts/screws
- Quality
- PREMIUM
- Required quantity
- 2
- Weight
- 6.48 kg
Vehicle Manufacturers
BMW(4 items)
BMW
34 21 6 778 051
BMW
34 21 6 855 005
BMW
6 778 051
BMW
6 855 005
Other brands compatible with the same OE
18 total
A.B.S.
18172
Brake disc
ATE
24.0120-0214.1
Brake disc
BLUE PRINT
ADB114327
Brake disc
BOSCH
0 986 479 497
Brake disc
CIFAM
800-1014C
Brake disc
FEBI BILSTEIN
43867
Brake disc
HELLA
8DD 355 120-901
Brake disc
METELLI
23-1014C
Brake disc
NK
2015114
Brake disc
NK
3115114
Brake disc
OPTIMAL
BS-8990C
Brake disc
QUARO
QD2900HC
Brake disc
SWAG
20 94 3867
Brake disc
TRISCAN
8120 11188C
Brake disc
TRW
DF6313
Brake disc
VAICO
V20-80078
Brake disc
VALEO
197181
Brake disc
VALEO
673525
Brake disc
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5:57
10:20Air Brakes Explained Simply :: Service, Parking and Emergency Brakes One & the Same
Smart Drive Test
Watch on YouTube
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 315 523 0023/PD have compatible (OE) part numbers?
Yes — it is linked to 4 OE-compatible part number(s), shown in the compatible parts section above.