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KA-4091
$57.99 USD
MSRP $77.99 25.6% Off
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K&N KA-4091 Air Filter

Replacement Filters > Replacement Air Filter
  • Designed to provide increased horsepower and torque
  • Pleated media provides a large filtration area offering long service intervals
  • Multiple layers of woven cotton gauze media offers excellent filtration
  • Application specific base seal and sealing bead
  • Made in the USA for over 40 years
  • Washable & reusable, pre-oiled and ready to ride!
  • Includes a 10-Year/Million-Mile Limited Warranty
K&N's high-flow air filters are available as a replacement for your stock motorcycle air filter element. They are custom engineered to fit your specific application and are designed to provide low restriction and increased performance, while providing excellent engine protection for your motorcycle.

[More Information on K&N Replacement Air Filters]

Product Specifications

Air Filter ShapeRectangular
Filter MaterialCotton Gauze
Filter Re-Oiling Amount0.44 oz (13 ml)
FlangesNone
Height3.188 in (81 mm)
Outside Length7 in (178 mm)
Outside Width3.875 in (98 mm)
Package Contents1 Air Filter
Package Quantity1
Product Box Height9.06 in (230 mm)
Product Box Length5.56 in (141 mm)
Product Box Width4.56 in (116 mm)
Product StyleRectangular Air Filter
Weight0.8 lb (0.4 kg)

Customer Feedback

Filter is perfect for the air cleaner mod on my Kawasaki Nomad motorcycle. A filter lid would be handy for this 10.5 o.d. filter. Your delivery time was AMAZING! One and a half days from California, WOW! That's very impressive. Thanks again for the great service. Roy

Roy Wheeler
Hamilton, Ontario, Canada
Ordered the KA-1406 for my Kawasaki Concours. Order went smooth and I had the air filter within a few days. Installing the air filter was easy and the bike runs great with it installed. The experience was great and when I do buy another one, for my next bike, I will definitely order K&N again. In fact, I will be pulling the stock air filter our right away and installing a new K&N.

Mike Boehm
California
For one thing, I like the fact that the air filter will probably outlast the life of the bike. How could you go wrong with that ?!Installation was easy, only took about 10 minutes. I have used K&N before and was happy the last time I used it on my 1979 Kawasaki 650 SR.

Henry
Thiells, New York