This guide brings the main Genuine BMW iron-brake references for the G8X M cars into one place: G87 M2, G80 M3, G81 M3 Touring and G82/G83 M4. It is designed to help owners distinguish front from rear parts and search the exact BMW reference before ordering.
G8X Genuine BMW brake disc and pad part numbers
| Axle | Component | BMW part number | Shop |
|---|---|---|---|
| Front | Left brake disc, 380x36mm | 34107889661 | Front disc pair |
| Front | Right brake disc, 380x36mm | 34107889662 | Front disc pair |
| Front | Brake pad set | 34108093705 | Front pads |
| Rear | Left/right rear disc pair references | 34207889663 34207889664 |
Rear disc pair |
| Rear | Brake pad set | 34208093728 | Rear pads |
G87 M2 brake discs and pads
For the listed G87 iron-brake application, start with the Genuine BMW G8X brake collection. The front disc pair uses 34107889661 and 34107889662, while the front pad set is 34108093705. Rear pads are 34208093728. Do not substitute F87/F8X references because the model name is similar.
G80 M3 and G81 M3 Touring brake parts
The G80 and G81 pages share the G8X family but the exact fitted brake package still needs confirmation. Use the part-number links above for the listed iron-brake applications, then browse G80 M3 braking or G81 M3 Touring braking for aftermarket pad, disc, hose and fluid options.
G82 and G83 M4 brake parts
For G82 M4 Coupe and G83 M4 Convertible iron-brake applications, compare the same Genuine BMW G8X hub with the wider G82/G83 M4 braking collection. Carbon-ceramic brakes require different components and should not be ordered from the iron-brake references above.
G8X versus F8X brake discs
Do not select a disc from diameter alone. The G8X front disc listed here is 380x36mm, whereas the standard F8X Genuine BMW front disc is 380x30mm and uses different BMW references. The separate F8X Genuine BMW brake collection covers F87 M2, F80 M3 and F82/F83 M4 standard iron brakes.
Buying by BMW part number
Searching the complete BMW reference is often the safest way to compare replacement parts, but a matching number still needs to correspond to the vehicle's fitted system. Check whether a listing supplies one disc or an axle pair, whether a pad sensor is included, and whether the car has factory or retrofitted brakes.
Need a fitment check?
Use the Genuine BMW G8X M2/M3/M4 brake hub or contact Nineteen72 Performance with the VIN/registration. For a modified car, also provide the caliper and disc specification currently fitted.
