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HA-4099
$63.99 USD
MSRP $86.19 25.8% Off
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K&N HA-4099 Air Filter

Universal Air Filters > Replacement Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   4 Customer Reviews
  • Designed to provide increased horsepower and acceleration
  • Specifically developed for Off-Road, Motocross, ATVs, UTVs and Side by Sides
  • Pleated cotton media provides a large filtration area offering low restriction, high-capacity and long service intervals
  • Multiple layers of woven cotton gauze media offers excellent filtration
  • Fits directly into OEM air box with application specific sealing bead ensuring a precise fit
  • No fuel management modifications are required to obtain increased performance
  • Washable & reusable, most are pre-oiled and ready to ride!
  • One Year Limited Warranty
The K&N HA-4099 Air Filter fits some Honda TRX400EX, and Honda TRX400X models. See vehicle applications link for details.
K&N off-road replacement air filters are ideal for extended use in dirty and dusty off-road riding and provide clean carburetion even at high altitude. Generally, no jet changes are required with just a K&N filter element. K&N replacement air filters are washable and reusable and provide high air-flow with excellent filtration.

[More Information on Off-Road Motorcycle and ATV Air Filters]

Product Specifications

Air Filter ShapeOval
Filter MaterialCotton Gauze
Flange Inside Diameter3 in (76 mm)
Flange Length1.5 in (38 mm)
Flange TypeCentered
Flanges1
Height4.5 in (114 mm)
Base Outside Diameter5.125 in (130 mm)
Top Outside Diameter5.375 in (137 mm)
Top StyleMetal
Top MaterialBlack Oxide
Package Contents1 Air Filter
Package Quantity1
Warranty12 Months
Product StyleRound Tapered Universal Air Filter
Outside Diameter5.125 in (130 mm)
Weight1.4 lb (0.6 kg)
Filter Re-Oiling Amount0.82 oz (24 ml)
Air Filter Large End Diameter5.375 in (137 mm)
Product Box Height7.25 in (184 mm)
Product Box Length6.5 in (165 mm)
Product Box Width6.5 in (165 mm)
WARNING: Cancer and reproductive harm--www.P65warnings.ca.gov

K&N HA-4099 Air Filter Product Reviews

Monday, April 17, 2017 - Part HA-4099
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?

Brian Houston
Lehi, Utah
Friday, December 9, 2016 - Part HA-4099
It improved the performance of my quad.

Joshua Larios
Los Angeles, California
Tuesday, January 20, 2015 - Part HA-4099
Fits great. Work's like all my other K&N air filters. Great. Arrived fast.

Vincent
Colorado