12:53Image pending
TRW
DF4478S
Brake disc
Specifications
- Brake Disc Thickness
- 28 mm
- Centering Diameter
- 70 mm
- Height
- 40 mm
- Minimum thickness
- 26 mm
- Outer Diameter
- 330 mm
- Brake Disc Type
- Vented
- Bolt Hole Circle Ø
- 110
- Number of Holes
- 5
- Thread Size
- 16,6
- Colour
- Black
- Surface
- Painted
- Weight
- 10.684 kg
Vehicle Manufacturers
ALFA ROMEO(3 items)
ALFA ROMEO
51731346
ALFA ROMEO
51760622
ALFA ROMEO
51767384
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 DF4478S have compatible (OE) part numbers?
Yes — it is linked to 3 OE-compatible part number(s), shown in the compatible parts section above.