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TRW
DF4854S
Brake disc
Specifications
- Brake Disc Thickness
- 20 mm
- Centering Diameter
- 75 mm
- Height
- 78.6 mm
- Minimum thickness
- 18.4 mm
- Outer Diameter
- 320 mm
- Brake Disc Type
- Vented
- Number of Holes
- 5
- Bolt Hole Circle Ø
- 120
- Thread Size
- 16,5
- Drum diameter
- 185
- Machining
- High-carbon
- Colour
- Black
- Surface
- Painted
- Weight
- 8.3 kg
Vehicle Manufacturers
BMW(8 items)
BMW
34 21 6 771 970
BMW
34 21 6 793 247
BMW
34 21 6 868 940
BMW
34 21 6 886 479
BMW
6 771 970
BMW
6 793 247
BMW
6 868 940
BMW
6 886 479
About 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 DF4854S have compatible (OE) part numbers?
Yes — it is linked to 8 OE-compatible part number(s), shown in the compatible parts section above.