5:57Image pending
SWAG
20 94 3970
Brake disc
Specifications
- Brake Disc Thickness
- 28 mm
- Centering Diameter
- 79 mm
- Minimum thickness
- 26.4 mm
- Outer Diameter
- 315 mm
- Thickness
- 52.7 mm
- paired article number
- 20 94 3971
- Rim Hole Number
- 5
- Number of mounting bores
- 1
- Bolt Hole Circle Ø
- 120
- Machining
- High-carbon
- Surface
- Coated
- Brake Disc Type
- internally vented
- Fitting Position
- Front Axle Left
- Weight
- 8.136 kg
Vehicle Manufacturers
BMW(2 items)
BMW
34 11 2 227 171
BMW
34 11 2 227 737
WIESMANN(1 items)
WIESMANN
34112227171
Other brands compatible with the same OE
16 total
A.B.S.
16334
Brake disc
ASHIKA
60-00-0111C
Brake disc
ATE
24.0128-0198.1
Brake disc
ATE
24.0128-0204.2
Brake disc
ATE
24.0328-0198.1
Brake disc
BREMBO
09.5934.10
Brake disc
BREMBO
09.5934.11
Brake disc
DELPHI
BG3215
Brake disc
FEBI BILSTEIN
43970
Brake disc
FERODO
DDF804C
Brake disc
HELLA
8DD 355 104-091
Brake disc
JAPANPARTS
DI-0111C
Brake disc
MEYLE
315 521 0026/PD
Brake disc
REMSA
6508.10
Brake disc
ROADHOUSE
6508.10
Brake disc
VALEO
197353
Brake disc
Featured videos
Watch maintenance and replacement tutorials on YouTube.
5:57
10:20Air Brakes Explained Simply :: Service, Parking and Emergency Brakes One & the Same
Smart Drive Test
Watch on YouTube
14:21About 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 20 94 3970 have compatible (OE) part numbers?
Yes — it is linked to 3 OE-compatible part number(s), shown in the compatible parts section above.