14:21Specifications
- Brake Disc Thickness
- 30 mm
- Centering Diameter
- 67 mm
- Height
- 46.6 mm
- Minimum thickness
- 28 mm
- Outer Diameter
- 345 mm
- Brake Disc Type
- Vented
- Number of Holes
- 5
- Surface
- Coated
- Weight
- 22.503 kg
Vehicle Manufacturers
MERCEDES(2 items)
MERCEDES
203 421 09 12
MERCEDES
A 203 421 09 12
Other brands compatible with the same OE
12 total
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14:21
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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 8120 23172C have compatible (OE) part numbers?
Yes — it is linked to 2 OE-compatible part number(s), shown in the compatible parts section above.