Features:1. Part Number: According to the original factory specifications, reference OEM number is 0470-421, replacement OEM is 0470-355. 2. Applicable Model: Sponge air filter, replacement for Arctic Cat 250 2x4 1999 - 2005, replacement for Arctic Cat 250 4x4 2001 - 2005. 3. Good Replacement: Designed and manufactured according to the original model, used to replace the worn-out air filter of the refurbished original vehicle. 4. High Performance: Designed to improve filter performance and increase fuel efficiency, high airflow, dirt stopping, and overall performance. 5. Durable Material: High air flow filter is made of high-quality sponge materials, provides better airflow compared to traditional paper filters. Specification: Item Type: Air Filter Material: Sponge OEM: 0470-421 Replacement OEM: 0470-355 Application: Replacement parts for refurbishing or repairing original vehicle filters to improve fuel efficiency Fitment: Replacement for Arctic Cat 250 2x4 1999 - 2005 Replacement for Arctic Cat 250 4x4 2001 - 2005 Replacement for Arctic Cat 300 2x4 1998 - 2003 Replacement for Arctic Cat 300 4x4 1998 - 2005 Replacement for Arctic Cat 300 4x4 MRP 2004 Note: 1. Please double check the part number of your item, matching information is for reference only.