The OUTERWEARS blue ATV pre-filter is designed for use with K&N HA-4099 air filters, providing an additional barrier against sand, dirt, clay, and water without significantly restricting airflow. Its silicone-impregnated micro-mesh material is water resistant and engineered for demanding off-road conditions.
Dyno and flow bench testing has shown no significant loss of horsepower or air intake when using this pre-filter. The uniform micron-sized openings filter particles as small as .005 inches in diameter while allowing the engine to receive the air it needs. Dielectrically welded seams help provide reliable construction for repeated use in dusty and wet riding environments.
This OUTERWEARS pre-filter, manufacturer part number 20-1008-02 and vendor part number 25-5822B, fits the K&N HA-4099 application on select Honda ATV models, including the 2012–2014 Honda TRX400X and 1999–2005 Honda TRX400EX Sportrax. Verify the existing air filter model and vehicle fitment before installation.
Features:
- Brand: OUTERWEARS
- Color: Blue
- Application: ATV pre-filter for K&N HA-4099 air filters
- Material: Silicone-impregnated, water-resistant micro-mesh
- Particle filtration: Filters particles as small as .005 inches in diameter
- Airflow: Designed to provide filtration without noticeable airflow restriction
- Construction: Dielectrically welded seams
- Fitment: 2012–2014 Honda TRX400X
- Fitment: 1999–2005 Honda TRX400EX Sportrax
- Manufacturer part number: 20-1008-02
- Vendor part number: 25-5822B
Fitment:
1999 Honda TRX400EX Sportrax
2000 Honda TRX400EX Sportrax
2001 Honda TRX400EX Sportrax
2002 Honda TRX400EX Sportrax
2003 Honda TRX400EX Sportrax
2004 Honda TRX400EX Sportrax
2005 Honda TRX400EX Sportrax
2006 Honda TRX400EX Sportrax
2007 Honda TRX400EX Sportrax
2008 Honda TRX400EX Sportrax
2009 Honda TRX400EX Sportrax
2012 Honda TRX400X
2013 Honda TRX400X
2014 Honda TRX400X