2004 Honda TRX400EX 397 Air Filter

2004 Honda TRX400EX 397 Air Filter
  • Designed to increase horsepower & torque for the 2004 Honda TRX400EX with the 397 engine.
  • Washable & Reusable
  • This K&N TRX400EX air filter lasts the lifetime of your vehicle.
  • Million Mile Limited Warranty with use on Street Vehicles
K&N air filters for 2004 Honda TRX400EX models offer an optimal blend of high air flow, filtration efficiency, durability and dust capacity. K&N Honda filters are designed to add performance.

Your 2004 Honda TRX400EX deserves a K&N! Select the Product Info button below to see everything the air filter fits.

2004 Honda TRX400EX 397 - All Models
Love it! Really gives my quad some good pep. I can feel the power thru the entire power band. Why did I wait so long?
, Lehi, Utah
Replacement Air Filter
K&N HA-4099
  • Designed to Increase Power and Acceleration
  • Washable and Reusable
HA-4099 2004 Honda TRX400EX 397 Replacement Air Filter
List Price: $86.19
Your Price: USD $63.99
In stock