5:57Specifications
- Brake Disc Thickness
- 20 mm
- Centering Diameter
- 75 mm
- Height
- 80.3 mm
- Minimum thickness
- 18.4 mm
- Outer Diameter
- 324 mm
- Fitting Position
- Rear Axle
- Bolt Hole Circle Ø
- 120
- Wheel Bolt Bore Diameter
- 16.6
- 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
- 4.497 kg
Vehicle Manufacturers
BMW(2 items)
BMW
34 21 6 756 849
BMW
6 756 849
Other brands compatible with the same OE
11 total
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5:57
14:21
10:20Air Brakes Explained Simply :: Service, Parking and Emergency Brakes One & the Same
Smart Drive Test
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 315 523 0055/PD have compatible (OE) part numbers?
Yes — it is linked to 2 OE-compatible part number(s), shown in the compatible parts section above.