12:53Specifications
- Brake Disc Thickness
- 28 mm
- Minimum thickness
- 25 mm
- Outer Diameter
- 300 mm
- for OE number
- 910 421 0000
- Fitting Position
- Front Axle
- Bore Diameter
- 15
- Brake Disc Type
- internally vented
- Number of Holes
- 6
- Bolt Hole Circle Ø
- 130
- Guarantee
- 2 years warranty
- Net Weight
- 9100
- Weight
- 9.159 kg
Vehicle Manufacturers
MERCEDES(4 items)
MERCEDES
910 421 0000
MERCEDES
910 421 0100
MERCEDES
A910 421 0000
MERCEDES
A910 421 0100
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12:53
5:57
12:32CDL Air Brakes Test 2024 (MOST Common Questions and Answers)
Driving Academy | CDL Truck Driving School
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 4.74121 have compatible (OE) part numbers?
Yes — it is linked to 4 OE-compatible part number(s), shown in the compatible parts section above.