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DELPHI

BG9129C

Brake disc

Specifications

Brake Disc Thickness
24 mm
Centering Diameter
75 mm
Height
66.2 mm
Minimum thickness
22.4 mm
Outer Diameter
330 mm
Brake Disc Type
Vented
Number of Holes
5
Test Mark
E1 90R-02C0074/1696
Surface
Coated
Machining
High-carbon
Weight
9.852 kg

Vehicle Manufacturers

BMW(3 items)

BMW

3411 6793 123

BMW

3411 6794 429

BMW

34116896652

BMW (BRILLIANCE)(2 items)

BMW (BRILLIANCE)

34106883506

BMW (BRILLIANCE)

34116793123

Featured videos

Watch maintenance and replacement tutorials on YouTube.

9:44

CDL Class A FULL In Cab Inspection and Air Brake Test 2023 - Pass Your CDL Trucking Road Test

Driving Academy | CDL Truck Driving School

Watch 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 BG9129C have compatible (OE) part numbers?

Yes — it is linked to 5 OE-compatible part number(s), shown in the compatible parts section above.

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