The UNI FILTER NU-8501ST air filter is designed for select Polaris Trail Blazer, Trail Boss, and Xpress models. It fits in the stock airbox exactly like the OEM filter, providing a direct airbox fit for the listed vehicle applications.
This two-stage air filter comes apart for cleaning and maximum airflow. Clean it with grease-cutting dishwashing detergent, then oil and reuse. The filter features an Ultra Seal grease groove on the sealing surface and is designed for airflow, dirt stopping, and overall performance. The manufacturer part number is NU-8501ST, and the distributor part number is NU8501ST. Made in the USA.
Vehicle fitment includes the 1991, 1992, and 1993 Polaris Trail Blazer 250; 1998 Polaris Trail Blazer 250 ES; 1988 Polaris Trail Boss 250 2X4; 1989 Polaris Trail Boss 250 4X4; 1993, 1995, and 1990 Polaris Trail Boss 250; and 1998 Polaris Xpress 300.
Features:
- Two-stage design: Comes apart for maximum airflow and cleaning.
- Reusable construction: Clean with grease-cutting dishwashing detergent, then oil and reuse.
- Ultra Seal grease groove: Located on the sealing surface.
- Stock airbox fit: Fits in the stock airbox exactly like the OEM filter.
- Vehicle fitment: Fits select Polaris Trail Blazer 250, Trail Blazer 250 ES, Trail Boss 250 2X4, Trail Boss 250 4X4, Trail Boss 250, and Xpress 300 models.
- Made in the USA: Manufactured in the United States.
Fitment:
1987 Polaris Trail Boss 250 4X4
1988 Polaris Trail Boss 250 2X4
1988 Polaris Trail Boss 250 4X4
1988 Polaris Trail Boss 250 R
1989 Polaris Big Boss 250
1989 Polaris Big Boss 250 4X6
1989 Polaris Big Boss 250 6X6
1989 Polaris Trail Boss 250 2X4
1989 Polaris Trail Boss 250 4X4
1989 Polaris Trail Boss 250 R
1990 Polaris Big Boss 250
1990 Polaris Big Boss 250 4X6
1990 Polaris Big Boss 250 6X6
1990 Polaris Trail Blazer 250
1990 Polaris Trail Boss 250 2X4
1990 Polaris Trail Boss 250 4X4
1991 Polaris Big Boss 250
1991 Polaris Big Boss 250 4X6
1991 Polaris Big Boss 250 6X6
1991 Polaris Trail Blazer 250
1991 Polaris Trail Boss 250
1991 Polaris Trail Boss 250 2X4
1991 Polaris Trail Boss 250 4X4
1992 Polaris Big Boss 250
1992 Polaris Big Boss 250 4X6
1992 Polaris Big Boss 250 6X6
1992 Polaris Trail Blazer 250
1992 Polaris Trail Boss 250
1992 Polaris Trail Boss 250 2X4
1992 Polaris Trail Boss 250 4X4
1993 Polaris Trail Blazer 250
1993 Polaris Trail Boss 250
1993 Polaris Trail Boss 250 2X4
1993 Polaris Trail Boss 250 4X4
1994 Polaris Trail Blazer 250
1994 Polaris Trail Boss 250
1995 Polaris Trail Blazer 250
1995 Polaris Trail Boss 250
1995 Polaris Xplorer 250
1995 Polaris Xplorer 250 4X4
1996 Polaris Trail Blazer 250
1996 Polaris Trail Blazer 250 ES
1996 Polaris Trail Boss 250
1996 Polaris Xplorer 250
1996 Polaris Xpress 300
1996 Polaris Xpress 300 4x2
1997 Polaris Big Boss 250
1997 Polaris Trail Blazer 250
1997 Polaris Trail Blazer 250 ES
1997 Polaris Trail Boss 250
1997 Polaris Xplorer 250
1997 Polaris Xpress 300
1998 Polaris Trail Blazer 250
1998 Polaris Trail Blazer 250 ES
1998 Polaris Trail Boss 250
1998 Polaris Xplorer 250
1998 Polaris Xplorer 250 4X4
1998 Polaris Xpress 300
1998 Polaris Xpress 300 4x2
1999 Polaris Trail Blazer 250
1999 Polaris Trail Boss 250
1999 Polaris Xplorer 250
1999 Polaris Xplorer 250 4X4
1999 Polaris Xpress 300
2000 Polaris Trail Blazer 250
2000 Polaris Xplorer 250
2000 Polaris Xplorer 250 4X4