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QUARO

QD3121

Brake disc

Specifications

Brake Disc Thickness
25 mm
Centering Diameter
63.5 mm
Height
48.5 mm
Minimum thickness
23 mm
Outer Diameter
278 mm
Brake Disc Type
internally vented
Fitting Position
Front Axle
Bolt Hole Circle Ø
108
Supplementary Article/Supplementary Info 2
without wheel hub
Surface
Painted
Number of Holes
5
Weight
0.4 kg

Vehicle Manufacturers

FORD(5 items)

FORD

1686722

FORD

1686723

FORD

1790221

FORD

AV611125DA

FORD

AV611125DB

FORD (CHANGAN)(5 items)

FORD (CHANGAN)

1759454

FORD (CHANGAN)

1843728

FORD (CHANGAN)

BV611125AA

FORD (CHANGAN)

BV611125EA

FORD (CHANGAN)

BV611125EB

FORD USA(1 items)

FORD USA

BV6Z1125A

GMC(1 items)

GMC

92237703

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 QD3121 have compatible (OE) part numbers?

Yes — it is linked to 12 OE-compatible part number(s), shown in the compatible parts section above.

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