12:32CDL Air Brakes Test 2024 (MOST Common Questions and Answers)
Driving Academy | CDL Truck Driving School
Watch on YouTubeSpecifications
- Brake Disc Thickness
- 45 mm
- Centering Diameter
- 195 mm
- Height
- 135 mm
- Minimum thickness
- 41 mm
- Outer Diameter
- 438 mm
- Fitting Position
- Rear Axle
- Brake Disc Type
- internally vented
- Thread Size
- M14 x 1,5
- Number of Holes
- 10
- Bolt Hole Circle Ø
- 235
- Guarantee
- 2 years warranty
- Net Weight
- 32500
- Weight
- 33.72 kg
Vehicle Manufacturers
MERCEDES(6 items)
MERCEDES
356 421 0312
MERCEDES
356 421 1012
MERCEDES
356 421 1212
MERCEDES
A356 421 0312
MERCEDES
A356 421 1012
MERCEDES
A356 421 1212
Component Manufacturers
MERITOR(1 items)
MERITOR
MBR5015
Other brands compatible with the same OE
5 total
RELATED
Parts in this category
Other parts in the same category.
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 4.63991 have compatible (OE) part numbers?
Yes — it is linked to 7 OE-compatible part number(s), shown in the compatible parts section above.