9:44CDL Class A FULL In Cab Inspection and Air Brake Test 2023 - Pass Your CDL Trucking Road Test
Driving Academy | CDL Truck Driving School
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DELPHI
BG4778C
Brake disc
Specifications
- Brake Disc Thickness
- 20 mm
- Centering Diameter
- 67 mm
- Height
- 50.7 mm
- Minimum thickness
- 18.4 mm
- Outer Diameter
- 300 mm
- Brake Disc Type
- Vented
- Number of Holes
- 5
- Test Mark
- E1 90R-02C0277/1911
- Surface
- Coated
- Weight
- 6 kg
Vehicle Manufacturers
BMW(3 items)
BMW
34206891086
BMW
34208888088
BMW
3421 6799 369
BMW (BRILLIANCE)(1 items)
BMW (BRILLIANCE)
34216799369
MINI(2 items)
MINI
34206891086
MINI
34216799369
Other brands compatible with the same OE
18 total
A.B.S.
18453
Brake disc
ABE
C4B055ABE-P
Brake disc
ASHIKA
61-00-0106C
Brake disc
BREMBO
09.C743.11
Brake disc
FERODO
DDF2763C
Brake disc
FTE
9072572
Brake disc
FTE
9082278
Brake disc
HELLA PAGID
8DD 355 122-631
Brake disc
JAPANPARTS
DP-0106C
Brake disc
JURID
563261JC
Brake disc
LPR
B2080V
Brake disc
MINTEX
MDC2679
Brake disc
NK
2015117
Brake disc
NK
3115117
Brake disc
TEXTAR
92274503
Brake disc
TRW
DF6755
Brake disc
VALEO
197973
Brake disc
VALEO
672870
Brake disc
Featured videos
Watch maintenance and replacement tutorials on YouTube.
9:44
14:21
10:20Air Brakes Explained Simply :: Service, Parking and Emergency Brakes One & the Same
Smart Drive Test
Watch on YouTubeAbout 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 BG4778C have compatible (OE) part numbers?
Yes — it is linked to 6 OE-compatible part number(s), shown in the compatible parts section above.