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K&N Filters

K&N KART Air Box & Performance Air Filters

Motorcycle ATV Kart

K&N Universal air filters are designed and manufactured for a wide variety of applications.  Regardless of the angle, offset diameter of the air intake, there is a K&N Universal air filter for your Kart.  All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1/16" (1.5mm) to fit in-between sizes.  K&N Universal air filters are available in round, tapered and oval designs, for just about any special application.

See our XStream® Filter page for all available sizes of XStream® filters like those shown above.

Note: In addition to the universal air filters shown below, we manufacture hundreds of other universal air filters that may meet your KART needs.  See our Universal Filters page for a full listing of our universal air filters.

 2-7/16" Flange Mount
Motorcycle ATV Kart 2-7 16th Flange

Mounting Flange Dia./Length Part # PreCharger Part #
2-7/16" Centered, Round 3-1/2"Dx4" RU-0800 RU-0500PK
2-7/16" Centered, Round 3-1/2"Dx6" RU-0820 RU-0520PK
2-7/16" 20° Angle, Round 3-3/4"Dx4" RU-1750 22-8011PK
2-7/16" 20° Angle, Round 3-3/4"Dx6" RU-1770 RU-1470PK
2-7/16" Centered, Round 4-1/2"Dx4" RU-0830 22-8013PK
2-7/16" Centered, Tapered 4-1/2"Dx5" RU-0840 22-8013PK
2-7/16" Offset, Tapered 5-1/2-4-1/2"D(top)x4" R-1380
2-7/16" 20° Angle, Oval 4-1/2"-3-3/4"Dx7" RU-1390 RU-1240PK
 1-11/16" Flange Mount
Motorcycle ATV Kart 1-11 16th Flange

Mounting Flange Dia./Length Part # PreCharger Part #
1-11/16" Centered, Round 3"Dx4" RU-0200 22-8009PK
1-11/16" Centered, Round 4"Dx2" RU-0260 - - - -
2-1/16" Flange Mount
Motorcycle ATV Kart 2-1 16th Flange

Mounting Flange Dia./Length Part # PreCharger Part #
2-1/16" Centered, Round 3-1/2"Dx4" RU-0500 RU-0500PK
2-1/16" Centered, Round 3-1/2"Dx6" RU-0520 RU-0520PK
2-1/16" Centered, Tapered 3-1/2"-2"Dx4" RC-1200 RC-1200PK
 2-3/4" Flange Mount
Motorcycle ATV Kart 2 3qtr Flange

Mounting Flange Dia./Length Part # PreCharger Part #
2-3/4" 10° Angle, Round 4"Dx5" RU-1460 RU-1460PK
2-3/4" Centered, Round 4-1/2"Dx4" RU-0900 22-8012PK
2-3/4" Centered, Oval 6-1/4"-4"Dx5" RU-1500 - - - -
  Replacement Air Filters for Honda GX-160
 Motorcycle ATV GX180

Kart Engine
K&N Part # HA-0201 replaces
Original Equipment Part #17210-ZEI-822

K&N KART Airbox and Air Filters

Many of the organizations that sanction Go Kart racing now require air boxes due to noise restrictions.  The K&N air box, part RK-1000, for Karts accepts one of two K&N washable/reusable High-Flow Air Filters, the RU-5005 and RU-5006.  The RU-5005 has a straight flange and the RU-5006 has a 20 degree flange.


29 mm I.D. Restrictors 85-2000
23 mm I.D. Restrictors 85-2001

In most cases, K&N Kart Airboxes can be mounted onto the carburetor.

K&N RK-1000 KART Air Box

Motorcycle ATV Kart Adapter
Feel the Power In The Air!

K&N's "Kart" air filter, when matched to the K&N adapter, allows you to use the standard "spec" plenum air box silencer with either "one, two or three" velocity tubes. Easy to mount.  Comes with all instructions and hardware.
The K&N air filter element comes with a stainless steel or rubber top plate.  Also standard is enough airflow to power a small block V-8 racing engine plus K&N's renowned dirt stopping ability.

The stainless steel top filter part number is RC-5004 (RU-5004 Rubber Top) and the adapter part number is 85-8851.

Motorcycle ATV XStreem PreCharger

KART XStream® PreChargers
The K&N XStream® PreCharger is a specially designed filter wrap made to extend the service interval of your K&N XStream® Filtercharger when used in very dirty, muddy or dusty conditions. They are made from a highly durable polyester material containing uniform micron openings.  The XStream® PreCharger will stop small dirt particles with minimal restriction to the airflow of the filter.  The XStream® PreCharger is designed to be run dry and can be cleaned with K&N Filter Cleaner. The XStream® PreCharger is custom made to fit each application. Elastic binders ensure that the XStream® PreCharger will stay in place.  See our Filter Wrap page for more applications.

Not legal for use in California, or other states with similar emissions control regulations. See product applications for specifications regarding emissions standards and CARB regulations.

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