Drive Belt: Manufacturer: BRONCO Part Number: AT-03854K Compatible with Polaris Models: Polaris 300 2x4: 1994 - 1995 Polaris 300 4x4: 1994 - 1995 Polaris 400L 2x4: 1994 - 1995 Polaris 400L 4x4: 1994 - 1997 Polaris ATP 330: 2004 - 2005 Polaris Big Boss 250 4x6: 1989 - 1994 Polaris Big Boss 250 6x6: 1989 - 1993 Polaris Big Boss 300 6x6: 1994 - 1995 Polaris Big Boss 350L 6x6: 1993 - 1994 Polaris Big Boss 400L 6x6: 1994 - 1997 Polaris Big Boss 500 6x6: 1998 - 1999 Polaris Cyclone 250X: 1987 Polaris Diesel (455cc): 1999 Polaris Magnum 325 2x4: 2000 - 2002 Polaris Magnum 325 4x4: 2000 - 2002 Majority of our listings are for a direct replacement for your original part. Our parts are made of quality and are designed to meet or exceed the original OEM Standards. Our products are often a cost effective alternative to genuine OEM Parts. Please note: the models of bike we state in our listings are for general guidance only. Please make sure this item will fit your bike before purchasing. Also, we cannot guarantee fitment to any non-UK models.