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TRW

DF4278

Brake disc

Specifications

Brake Disc Thickness
10 mm
Centering Diameter
55 mm
Height
39.9 mm
Minimum thickness
8 mm
Outer Diameter
261 mm
Brake Disc Type
solid
Number of Holes
4
Thread Size
13
Bolt Hole Circle Ø
100
Colour
Black
Surface
Painted
Test Mark
E190R-02C0190/0237
Weight
5.655 kg

Vehicle Manufacturers

HAIMA (FAW)(1 items)

HAIMA (FAW)

B26Y26251L1

MAZDA(2 items)

MAZDA

B26Y-26-251

MAZDA

BJ3Y-26-251

Featured videos

Watch maintenance and replacement tutorials on YouTube.

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 DF4278 have compatible (OE) part numbers?

Yes — it is linked to 3 OE-compatible part number(s), shown in the compatible parts section above.

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