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SU-4002
$65.99 USD
MSRP $89.29 26.1% Off
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K&N SU-4002 Air Filter

Replacement Filters > Replacement Air Filter
  • 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
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 Large End Diameter4.5 in (114 mm)
Air Filter ShapeTapered Conical
Base Inside Diameter2.875 in (73 mm)
Base Outside Diameter4.5 in (114 mm)
Filter MaterialCotton Gauze
Filter Re-Oiling Amount0.74 oz (22 ml)
FlangesNone
Height5.375 in (137 mm)
Inner WireNo
Package Contents1 Air Filter, 1 K&N 1oz Sealing Grease
Package Quantity1
Product Box Height9.25 in (235 mm)
Product Box Length5.63 in (143 mm)
Product Box Width4.63 in (117 mm)
Product StyleTapered Conical Air Filter
Top Material/FinishBlack Oxide
Top Outside Diameter3.5 in (89 mm)
Top StyleMetal
Weight1.1 lb (0.5 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
Definitely better power, transmission stayed in overdrive going up over the Coronado Bay bridge. Before, it would down shift to hold it at 50 mph speed limit. On the first tank now with the New K&N filter, usingTop Tier gas as usual. Nice tight fit in the filter box. Can actually hear the air noise in the intake tube. Had bought a K&N filter for my 2004 Ford E250 at a parts house the same day. (Brand Name) didn't carry the Suzuki filter, that's why I ordered direct...thanks for very fast service. Paul

Paul Oakes
Imperial Beach, California
Great fit and improved performance on my Suzuki DR Z400SM.

Thomas Slayback
Bloomington, Illinois