Genuine BMW ribbed V belt to fit between water pump and alternator. The size is 6pk x 1637
This fits some of the following BMW models: BMW E81, E82, E87, E88 E46 and E85 Z4
The BMW part number is 11287552236. Please check this against your VIN number using the BMW electronic parts catalogue to make sure it is correct for your car before buying. If you do not know how to do this, send us the last 7 digits of your VIN number and we will check for you.