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HELLA

8DD 355 129-331

Brake disc

Specifications

Brake Disc Thickness
20 mm
Centering Diameter
75 mm
Height
66 mm
Inner Diameter
185 mm
Minimum thickness
18.4 mm
Outer Diameter
300 mm
Brake Disc Type
internally vented
Machining
High-carbon
Surface
Coated
Bolt Hole Circle Ø
120
Hole Arrangement/Number
05/06
Wheel Bolt Bore Diameter
14.6
Supplementary Article/Supplementary Info 2
without wheel hub
Weight
6.7

Vehicle Manufacturers

BMW(6 items)

BMW

34 21 6 764 653

BMW

34 21 6 855 008

BMW

34 21 6 864 901

BMW

6764653

BMW

6855008

BMW

6864901

BMW (BRILLIANCE)(3 items)

BMW (BRILLIANCE)

34 21 6 764 653

BMW (BRILLIANCE)

34 21 6 855 008

BMW (BRILLIANCE)

34 21 6 864 901

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 8DD 355 129-331 have compatible (OE) part numbers?

Yes — it is linked to 9 OE-compatible part number(s), shown in the compatible parts section above.

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