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E-3971
$65.99 USD
MSRP $89.19 26.0% Off
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K&N E-3971 Air Filter

Replacement Filters > Round Air Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   1 Customer Review
  • 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-3971 Air Filter fits some Indian Chief, Indian Scout, and Indian Spirit 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
Height2.75 in (70 mm)
Inner WireNo
Inside Diameter4.625 in (117 mm)
Outside Diameter6 in (152 mm)
Top StyleOpen
Top MaterialNone
Air Filter ShapeRound
FlangesNone
Package Contents1 Air Filter, 1 K&N 1oz Sealing Grease
Package Quantity1
Warranty12 Months
Product StyleRound Air Filter
Weight0.7 lb (0.3 kg)
Filter Re-Oiling Amount0.5 oz (15 ml)
Product Box Height3.5 in (89 mm)
Product Box Length6.31 in (160 mm)
Product Box Width6.56 in (167 mm)

K&N E-3971 Air Filter Product Reviews

Monday, May 16, 2016 - Part E-3971
Perfect fit & fast delivery.

Steve Wilensky
Denver, Colorado