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NK
209931
Brake disc
Specifications
- Brake Disc Thickness
- 13 mm
- Centering Diameter
- 66 mm
- Height
- 43.2 mm
- Minimum thickness
- 11.5 mm
- Outer Diameter
- 240 mm
- Rim Hole Number
- 4
- Brake Disc Type
- solid
- Surface
- Oiled
- Net weight
- 3.98
- Weight
- 5.758 kg
Vehicle Manufacturers
AUSTIN(3 items)
AUSTIN
FAM8405
AUSTIN
GBD90809
AUSTIN
GBD90811
MG(1 items)
MG
FAM8405
RELIANT(1 items)
RELIANT
RTGBD90890
ROVER(5 items)
ROVER
FAM8405
ROVER
GBD90811
ROVER
NAM8415
ROVER
SDB090811EVA
ROVER
SDB090811SLP
Featured videos
Watch maintenance and replacement tutorials on YouTube.
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9:44CDL Class A FULL In Cab Inspection and Air Brake Test 2023 - Pass Your CDL Trucking Road Test
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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 209931 have compatible (OE) part numbers?
Yes — it is linked to 10 OE-compatible part number(s), shown in the compatible parts section above.