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E-3981
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K&N E-3981 Air Filter

Replacement Filters > SPECIAL ORDER Rnd Fltr
  • 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 E-3981 Air Filter fits some Indian Chief 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

Filter MaterialCotton Gauze
Height1.625 in (41 mm)
Inner WireNo
Inside Diameter5 in (127 mm)
Outside Diameter6.375 in (162 mm)
Top StyleOpen
Top MaterialNone
Air Filter ShapeRound
FlangesNone
Package Contents1 Air Filter
Package Quantity1
Warranty1,000,000 Miles/10 Year
WashableYes
Product StyleRound Air Filter
Weight0.8 lb (0.4 kg)
Filter Re-Oiling Amount0.28 oz (8 ml)
Product Box Height3.5 in (89 mm)
Product Box Length6.31 in (160 mm)
Product Box Width6.56 in (167 mm)
WARNING: Cancer and reproductive harm--www.P65warnings.ca.gov

K&N E-3981 Air Filter Product Reviews