NGK Iridium Spark Plug for BMW K1600GT, GTL, GTL EXCL - 6 spark plugs required per vehicle
| BMW Part Number: | 12 12 7 728 657 |
| Model | Year |
| K1600GT (K48) | 01/10-05/15 ECE |
| K1600GT (K48) | 02/10-05/15 USA |
| K1600GTL (K48) | 01/10-05/15 ECE |
| K1600GTL (K48) | 01/10-05/15 USA |
| K1600GTL EXCL (K48) | 06/13-05/15 ECE |
| K1600GTL EXCL (K48) | 06/13-04/15 USA |