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HELLA

8DD 355 120-621

Brake disc

Specifications

Brake Disc Thickness
23 mm
Centering Diameter
61 mm
Height
32 mm
Inner Diameter
144 mm
Minimum thickness
21.4 mm
Outer Diameter
282 mm
Brake Disc Type
internally vented
Surface
Coated
Bolt Hole Circle Ø
100
Hole Arrangement/Number
05/05
Wheel Bolt Bore Diameter
14
Supplementary Article/Supplementary Info 2
without wheel hub
Weight
5.8

Vehicle Manufacturers

CHRYSLER(7 items)

CHRYSLER

4695186

CHRYSLER

4695189

CHRYSLER

4695957

CHRYSLER

4764073

CHRYSLER

4879138AA

CHRYSLER

4879138AC

CHRYSLER

4879138AE

DODGE(5 items)

DODGE

4695186

DODGE

4695957

DODGE

4764073

DODGE

4879138AA

DODGE

4879138AC

GENERAL MOTORS(2 items)

GENERAL MOTORS

4695957

GENERAL MOTORS

4764073

Featured videos

Watch maintenance and replacement tutorials on YouTube.

12:32

CDL Air Brakes Test 2024 (MOST Common Questions and Answers)

Driving Academy | CDL Truck Driving School

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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 355 120-621 have compatible (OE) part numbers?

Yes — it is linked to 14 OE-compatible part number(s), shown in the compatible parts section above.

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