K&amp;N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications.  Regardless of the angle or offset diameter of the air intake, there is probably a K&amp;N Universal air filter for your equipment.  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 of an inch (1.5mm) to fit in-between sizes.  K&amp;N universal air filters are washable and reusable.

RF-1041 Universal Clamp-On Air Filter

Universal Clamp-On Air Filter

K&amp;N Black Universal Air Filters are made from Dryflow oil-free synthetic media.  These low restriction clamp-on air filters are designed and manufactured for a wide variety of applications.  When dirty they can be easily washed using K&amp;N synthetic air filter cleaner.

RU-3102HBK Universal Clamp-On Air Filter

K&amp;N adjustable fitting Universal Air Filters are made with flange inserts which adjust the filter's flange to one of three inside flange diameters. The flange on these filters is made with ultra-strong molded pliable rubber which absorbs vibration and allows for secure attachment. K&amp;N clamp-on universal air filters are washable and reusable.

Universal Clamp-On Air Filter Multi Lingual

RG-1003RD-L Universal Clamp-On Air Filter Multi Lingual

4-1/2"OD B, 4-1/2"H W/2-1/4, 2-1/2, 2-3/4 DIA FLG MULTI LANGUAGE

RU-5147 Universal Clamp-On Air Filter

K&amp;N crankcase vent filters are perfect for racing applications, vintage cars or individuals who want to add some aesthetics to their classic carbureted engine. The cone-shaped 62-1600RD-L crankcase vent filter has a K&amp;N embossed chrome top and chrome base. The flange clamps directly onto a 3/8 to 1/2 inch metal or plastic tubing where venting is needed. Constructed with a red colored synthetic media it can be cleaned and reused repeatedly.  Note: Legal in California only for racing vehicles which may never be used, registered, or licensed for use upon a highway. See knfilters.com for CARB status on each part for a specific vehicle.

62-1600RD-L Vent Air Filter Multi Lingual

Vent Air Filter Multi Lingual

RU-4990 Universal Clamp-On Air Filter

K&amp;N adjustable fitting Universal Air Filters are made with flange inserts which adjust the filter's flange to one of three inside flange diameters.  The flange on these filters is made with ultra-strong molded pliable rubber which absorbs vibration and allows for secure attachment.  K&amp;N clamp-on universal air filters are washable and reusable.

RG-1001RD Universal Clamp-On Air Filter

6" OD B X 5.5"H W/4", 3-1/2", 3"DIA FLG W/INVERTED FILTER TOP

RC-4780 Universal Clamp-On Air Filter

4"FLG, 6-5/8"B, 5-1/4"T, 9-1/2"H, W/OFFSET STUD & 23/32"HOLE

RF-1015 Universal Clamp-On Air Filter

RF-1042 Universal Clamp-On Air Filter

RG-1001RD-L Universal Chrome Filter Multi Lingual

6" OD B X 5.5"H W/4", 3-1/2", 3"DIA FLG INV TOP- MULTI LANGUAGE

Universal Chrome Filter Multi Lingual

RE-0870 Universal Clamp-On Air Filter

RG-1001BL Universal Clamp-On Air Filter

6"OD B X 5.5"H W/4", 3-1/2", 3"DIA FLG W/INVERTED FILTER TOP

K&amp;N XStream Air Flow Tops replace the top of your existing round filter and add a new dimension to engine breathing by feeding your engine all the air it can use.  They are washable and reusable just like other K&amp;N Air Filters.

66-1401 X-Stream Top Filter

X-Stream Top Filter

RE-0920 Universal Clamp-On Air Filter

K&amp;N crankcase vent filters are perfect for racing applications, vintage cars or individuals who want to add some aesthetics to their classic carbureted engine. The cone-shaped 62-1600BL crankcase vent filter has a K&amp;N embossed chrome top and chrome base. The flange clamps directly onto a 3/8 to 1/2 inch metal or plastic tubing where venting is needed. Constructed with a blue colored synthetic media it can be cleaned and reused repeatedly.  Note: Legal in California only for racing vehicles which may never be used, registered, or licensed for use upon a highway. See knfilters.com for CARB status on each part for a specific vehicle.

62-1600BL Vent Air Filter/ Breather

Vent Air Filter/ Breather

RC-4900 Universal Clamp-On Air Filter

4-1/8"FLG, 7-3/8"B, 6-5/8"T, 7-7/8"H, 21/32"CENTER HOLE

K&amp;N Individual Round Style Stacks for "Early Type" Fuel Injectors (Single Stacks) for Chevrolet, Etc. - Filters designed to fit with cut velocity stacks, or straight pieces of exhaust tubing. Rubber filter bases come with molded in velocity stack type radius and step, for smooth bore down from element to tube. Each filter has a rubber top with a stamped K&amp;N logo. As with all K&amp;N air filters, these are washable and reusable. Simply use K&amp;N oil and cleaner to service your filter.

RD-0720 Universal Clamp-On Air Filter

K&amp;N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications.  Regardless of the angle or offset diameter of the air intake, there is probably a K&amp;N Universal air filter for your equipment.  This universal air filter has a rigid flange for a clamp-on hose connection.  K&amp;N universal air filters are washable and reusable.

RC-5178 Oval Universal Air Filter

3-11/16"FLG, 10" X 7"B, 9" X 5-3/8"T, 7-7/8"H W/ STUD