The Outerwears ATV Air Box Cover Kit is designed for 1999–2008 Honda TRX400EX Sportrax models. Manufacturer part number 20-1054-03, also identified by vendor part number 25-5620R, this replacement-style air box cover kit is installed in place of the original airbox lid to help increase airflow to the air filter while retaining essential filtering capability.
Built for riders seeking a practical airbox airflow solution, the Outerwears kit provides a low-cost, easy-to-install alternative to a standard airbox cover. Its design allows additional air to reach the filter without completely exposing the intake system, helping support dependable filtration for off-road and recreational ATV use. Installation is intended for compatible factory airbox configurations on the listed Honda Sportrax applications.
Fitment: This Outerwears air box cover kit fits 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, and 2008 Honda TRX400EX Sportrax ATVs. Verify the model year and airbox configuration before ordering to ensure proper application. The kit is suitable for maintenance, replacement, or airflow-focused upgrades where the original airbox lid is being removed or replaced.
Features:
- Air box cover replacement designed to run in place of the original airbox lid
- Allows increased airflow to the filter while maintaining filtering ability
- Low-cost, easy-to-install kit for compatible Honda TRX400EX Sportrax ATVs
- Brand: Outerwears
- Manufacturer part number: 20-1054-03
- Vendor part number: 25-5620R
- Fitment: 1999–2008 Honda TRX400EX Sportrax
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