Ribbed Alternator Belt - developed for and supplied as the original equipment for BMW.
| BMW Part Number: | 12 31 7 681 841 |
| Model | Year |
| HEXHEAD MODELS | |
| HP2 Enduro (K25H) | 08/04-08/06 ECE |
| HP2 Enduro (K25H) | 08/04-08/06 USA |
| HP2 Megamoto (K25H) | 08/06-11/08 ECE |
| HP2 Megamoto (K25H) | 08/06-11/08 USA |
| R1200GS (K25) | 12/02-10/07 ECE |
| R1200GS 05-07 (K25) | 03/03-09/07 USA |
| R1200R 05-10 (K27) | 11/05-09/10 USA |
| R1200R 05-10 (K27) | 11/05-10/10 ECE |
| R1200S (K29) | 11/04-09/06 USA |
| R1200S (K29) | 11/04-12/06 ECE |
| R1200ST (K28) | 05/03-11/07 ECE |
| R1200ST (K28) | 06/03-06/07 USA |
| OILHEAD MODELS | |
| R850R (R28) | 11/99-07/07 ECE |
| R850RT (R22) | 06/00-02/06 ECE |
| R1100S (259S) | 12/96-07/05 ECE |
| R1100S (259S) | 01/97-09/04 USA |
| R1150GS (R21) | 09/98-11/03 ECE |
| R1150GS (R21) | 09/98-11/03 USA |
| R1150GS ADV (R21A) | 07/01-09/05 ECE |
| R1150GS ADV (R21A) | 07/01-09/05 USA |
| R1150R (R28) | 11/99-06/06 ECE |
| R1150R (R28) | 03/00-02/06 USA |
| R1150R Rockster (R28) | 03/02-07/05 ECE |
| R1150R Rockster (R28) | 03/02-07/05 USA |
| R1150RS (R22) | 11/00-11/04 ECE |
| R1150RS (R22) | 11/00-01/04 USA |
| R1150RT (R22) | 01/00-03/06 ECE |
| R1150RT (R22) | 02/00-02/06 USA |