The Outerwears ATV Pre-Filter, Part Number 20-1249-01, is designed for use with K&N RU-2430 air filters. Its silicone-impregnated micro-mesh construction provides water resistance while helping protect the primary air filter from sand, dirt, clay, and other unwanted elements. The precision material uses uniform micron-sized openings to support dependable filtration without noticeably restricting airflow.
Dyno and flow bench testing has shown no significant loss of horsepower or air intake when using this pre-filter. It filters particles as small as 0.005 inches in diameter, helping extend service intervals for the underlying air filter and providing added protection during off-road riding conditions. Dielectrically welded seams provide a secure, durable construction for demanding ATV use.
This Outerwears pre-filter fits the K&N RU-2430 air filter and is compatible with 1999–2007 Honda TRX400EX Sportrax models, as well as the 2004 Honda TRX450R. Verify the existing air filter model and vehicle application before installation to ensure proper fitment.
Features:
- Airflow Performance: Dyno and flow bench testing shows no significant horsepower or air intake loss when using the pre-filter.
- Water Resistance: Silicone-impregnated micro-mesh helps resist water intrusion.
- Filtration: Uniform micron-sized openings filter particles as small as 0.005 inches in diameter.
- Contaminant Protection: Helps block sand, dirt, clay, and other unwanted elements before they reach the primary air filter.
- Construction: Dielectrically welded seams provide durable, secure assembly.
- Fitment: Designed for K&N RU-2430 air filters and compatible with specified Honda ATV applications.
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
2004 Honda TRX450R
2005 Honda TRX400EX Sportrax
2005 Honda TRX450R
2006 Honda TRX400EX Sportrax
2007 Honda TRX400EX Sportrax