Brake Light Switch, and includes the Piston, Cover and everything depicted in the photo. NOTE: The Master Cylinder has two outlets, however you only require one outlet for the single brake disc. Simply remove the bolt in the Brake Light Switch hole and insert the Brake Light Switch. Now, insert the bolt into one of the two outlets to complete the Master Cylinder. In the event you want another bolt then use: BrakeBleed124 The following parts may also be required:
Brake Light Switch: BLSwitch334
Cable Adjuster: CableAdj876 Cable Adjuster Felt: CableFelt610
Vehicle Manufacturer: BMW Application: BMW Airhead Models Make/Model: BMW: R60, R75, R80, R90, R100 Model Years: 1973 - 1980 Manufacturer #: 34 31 1 234 381 (See APPLICATION TABLE tab BELOW to verify vehicle fitment)
Replace your old and worn Brake Cylinder Master with a Complete Master Cylinder!
Replace your old and worn Brake Cylinder Master with a Complete Master Cylinder!
 |  |  |
| EME Part Number: | BMCylinder381 |
| BMW Part Number: | 34 31 1 234 381 |
| Model | Year |
| R60 TIC (2477) | 09/78-09/80 ECE |
| R60/7 (2477) | 05/76-04/80 ECE |
| R60/7 (2477) | 07/76-11/77 USA |
| R75/6 (2476) | 09/73-06/76 ECE |
| R75/6 (2476) | 01/74-06/76 USA |
| R75/7 (2477) | 05/76-01/79 ECE |
| R75/7 (2477) | 07/76-06/77 USA |
| R80 (2477) | 04/77-09/80 ECE |
| R80 (2477) | 04/77-07/80 USA |
| R90/6 (2476) | 09/73-06/76 ECE |
| R90/6 (2476) | 01/74-06/76 USA |
| R100/7 (2474) | 05/76-06/77 ECE |
| R100/7T (2474) | 04/77-09/80 ECE |
| R100/7T (2474) | 05/76-07/78 USA |
| R100/T (2474) | 09/78-09/80 USA |
| R100RT (2474) | 06/78-09/80 ECE |