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K&N Powersports Air Filters for the Honda TRX400EX

Honda TRX400EX Replacement Air Filters

Buy an air filter for your Honda now and get a 100% money back guarantee!
  • Designed to Increase Horsepower and Acceleration
  • High Air Flow with Excellent Filtration
  • Lasts up to 50,000 Miles Before Cleaning is Required Depending on Driving Conditions
Order your K&N motorcycle and ATV air filter Factory Direct today!
Help your Honda TRX400EX run better.
  • Fast and FREE SHIPPING with Minimum Order
  • Simple, Quick and Secure Online Ordering
K&N Performance Air Filter Replacement
Vehicle DescriptionPart NumberProduct Image 
2008 Honda TRX400EX 397 - All
ATV
2008 Honda TRX400EX 397 Air Filter
HA-4099 HA-4099 HONDA TRX400EX Air Filter
List Price: $79.59
Factory Direct Price: $58.99
2007 Honda TRX400EX 397 - All
ATV
2007 Honda TRX400EX 397 Air Filter
HA-4099 HA-4099 HONDA TRX400EX Air Filter
List Price: $79.59
Factory Direct Price: $58.99
2006 Honda TRX400EX 397 - All
ATV
2006 Honda TRX400EX 397 Air Filter
HA-4099 HA-4099 HONDA TRX400EX Air Filter
List Price: $79.59
Factory Direct Price: $58.99
2005 Honda TRX400EX 397 - All
ATV
2005 Honda TRX400EX 397 Air Filter
HA-4099 HA-4099 HONDA TRX400EX Air Filter
List Price: $79.59
Factory Direct Price: $58.99
2004 Honda TRX400EX 397 - All
ATV
2004 Honda TRX400EX 397 Air Filter
HA-4099 HA-4099 HONDA TRX400EX Air Filter
List Price: $79.59
Factory Direct Price: $58.99
2003 Honda TRX400EX 397 - All
ATV
2003 Honda TRX400EX 397 Air Filter
HA-4099 HA-4099 HONDA TRX400EX Air Filter
List Price: $79.59
Factory Direct Price: $58.99
2002 Honda TRX400EX 397 - All
ATV
2002 Honda TRX400EX 397 Air Filter
HA-4099 HA-4099 HONDA TRX400EX Air Filter
List Price: $79.59
Factory Direct Price: $58.99
2001 Honda TRX400EX 397 - All
ATV
2001 Honda TRX400EX 397 Air Filter
HA-4099 HA-4099 HONDA TRX400EX Air Filter
List Price: $79.59
Factory Direct Price: $58.99
2000 Honda TRX400EX 397 - All
ATV
2000 Honda TRX400EX 397 Air Filter
HA-4099 HA-4099 HONDA TRX400EX Air Filter
List Price: $79.59
Factory Direct Price: $58.99
1999 Honda TRX400EX 397 - All
ATV
1999 Honda TRX400EX 397 Air Filter
HA-4099 HA-4099 HONDA TRX400EX Air Filter
List Price: $79.59
Factory Direct Price: $58.99

Find the right K&N motorcycle or ATV air filter for your Honda using the application search. Upgrade your Honda TRX400EX today with a K&N motorcycle or ATV air filter.