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 YouTubeSpecifications
- Brake Disc Thickness
- 28 mm
- Centering Diameter
- 79 mm
- Height
- 52.5 mm
- Minimum thickness
- 26.4 mm
- Outer Diameter
- 315 mm
- Fitting Position
- Front Axle Right
- 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
- paired article number
- 315 521 0026/PD
- Weight
- 4.13 kg
Vehicle Manufacturers
BMW(4 items)
BMW
2 227 172
BMW
2 227 738
BMW
34 11 2 227 172
BMW
34 11 2 227 738
Other brands compatible with the same OE
13 total
A.B.S.
16335
Brake disc
ATE
24.0128-0199.1
Brake disc
ATE
24.0128-0205.2
Brake disc
ATE
24.0328-0199.1
Brake disc
FEBI BILSTEIN
43971
Brake disc
HELLA
8DD 355 104-111
Brake disc
METELLI
23-1233C
Brake disc
REMSA
6508.11
Brake disc
ROADHOUSE
6508.11
Brake disc
SWAG
20 94 3971
Brake disc
TRW
DF2732S
Brake disc
VAICO
V20-80040
Brake disc
VALEO
197352
Brake disc
RELATED
Parts in this category
Other parts in the same category.
Featured videos
Watch maintenance and replacement tutorials on YouTube.
9:44
12:32CDL Air Brakes Test 2024 (MOST Common Questions and Answers)
Driving Academy | CDL Truck Driving School
Watch on YouTube
5:57About 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 315 521 0027/PD have compatible (OE) part numbers?
Yes — it is linked to 4 OE-compatible part number(s), shown in the compatible parts section above.