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Air Filter Housing Relief Valves - K&N Filters
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K&N Filters Overview:
K&N users would probably be surprised by the amount of air filtration testing and scientific research that goes on in K&N facilities as well as in independent laboratories. As the leader and originator of the high flow performance air filter we are always looking for new ways to provide excellent protection and maximum power for your car, truck, motorcycle, and just about anything else with an engine. In 2005 more than 1600 vehicles were tested by K&N's R&D group on dynamo meters in the US, United Kingdom, and the Netherlands. In addition to these power and torque tests, we also performed more than 110 filtration tests and more than 1,200 air flow tests with our in-house state-of-the-art test equipment. Select one of the links below to read or listen to more information on air filters and the science behind their design and function.
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Air Intake Accessories and Hardware
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Throttle Body
K & N Universal Rubber Filter 4"FLG, 5-3/8"B, 3-1/2"T, 6"H, TOP HAS TWO 0.400" VENTS
Brand: K&N Filters
Part #: RU-5141
k&n high flow air filter round tapered od 5 3/8/3.5 flange length 5/8 4 flange id a high performance washable and reusable filter that lasts longer made with ultra-strong molded pliable rubber flanges which absorbs vibration allows secure... more
Starting At
$37.86
K & N Filters Air Filter Assembly Vents Air Filter Vent - Stainless Steel - Natural - 2.75 in. Tall - 5 - 8 in. Inlet Tube Diameter K&N VENT KIT; MARINE, 5/8"FLG
Brand: K&N Filters
Part #: 85-1362
Vent your air cleaner.These K&N air filter assembly vents are specifically designed for venting air out of the side of your air cleaner. They are available in different inlet sizes and materials, based on what you need for your application. more
Starting At
$17.00
K & N Filters Air Filter Assembly Vents Air Filter Vent - Stainless Steel - Natural - 2.75 in. Tall - 1 - 2 in. Inlet Tube Diameter K&N VENT KIT; MARINE,1/2"FLG
Brand: K&N Filters
Part #: 85-1350
Vent your air cleaner.These K&N air filter assembly vents are specifically designed for venting air out of the side of your air cleaner. They are available in different inlet sizes and materials, based on what you need for your application. more
Starting At
$17.99
K & N Filters Air Filter Assembly Vents Air Filter Vent - Stainless Steel - Natural - 2.75 in. Tall - 3 - 8 in. Inlet Tube Diameter K&N VENT KIT; MARINE, 3/8"FLG
Brand: K&N Filters
Part #: 85-1337
Vent your air cleaner.These K&N air filter assembly vents are specifically designed for venting air out of the side of your air cleaner. They are available in different inlet sizes and materials, based on what you need for your application. more
Starting At
$10.90
K & N Filters Air Filter Assembly Vents Air Filter Vent - Plastic - Black - 1.50 in. Tall - 1 1 - 2 in. Inlet Tube Diameter - Bolt-On K&N VENT KIT; UNIVERSAL BOLT-ON
Brand: K&N Filters
Part #: 85-1220
Vent your air cleaner.These K&N air filter assembly vents are specifically designed for venting air out of the side of your air cleaner. They are available in different inlet sizes and materials, based on what you need for your application. more
Starting At
$27.99
K & N Filters Air Filter Assembly Vents Air Filter Vent - Plastic - Black - 3.50 in. Tall - 1 1 - 2 in. Inlet Tube Diameter - Threaded K&N VENT KIT; LATE GM SCREW-IN
Brand: K&N Filters
Part #: 85-1210
Vent your air cleaner.These K&N air filter assembly vents are specifically designed for venting air out of the side of your air cleaner. They are available in different inlet sizes and materials, based on what you need for your application. more
Starting At
$23.35
K & N Filters Air Filter Assembly Vents Air Filter Vent - Plastic - White - 1.50 in. Tall - 3 - 8 in. Inlet Tube Diameter K&N VENT KIT; 90 DEG PLASTIC, 5/8"FLG
Brand: K&N Filters
Part #: 85-1190
Vent your air cleaner.These K&N air filter assembly vents are specifically designed for venting air out of the side of your air cleaner. They are available in different inlet sizes and materials, based on what you need for your application. more
Starting At
$13.46
K & N Filters Air Filter Assembly Vents Air Filter Vent - Stainless Steel - Natural - 2.75 in. Tall - 5 - 16 in. Inlet Tube Diameter K&N VENT KIT; MARINE, 1/4"FLG
Brand: K&N Filters
Part #: 85-1325
Vent your air cleaner.These K&N air filter assembly vents are specifically designed for venting air out of the side of your air cleaner. They are available in different inlet sizes and materials, based on what you need for your application. more
Starting At
$13.07
K & N Filters Air Filter Assembly Vents Air Filter Vent - Plastic - Black - 3.50 in. Tall - 1 1 - 2 in. Inlet Tube Diameter - with Filter - Kit K&N VENT KIT; W/3" SHIELDED ELEMENT
Brand: K&N Filters
Part #: 85-1222
Vent your air cleaner.These K&N air filter assembly vents are specifically designed for venting air out of the side of your air cleaner. They are available in different inlet sizes and materials, based on what you need for your application. more
Starting At
$53.62
K & N Filters Air Filter Assembly Vents Air Filter Vent - Plastic - Black - 3.50 in. Tall - 1 1 - 2 in. Inlet Tube Diameter - with Filter - Kit K&N VENT KIT; W/3" OPEN ELEMENT
Brand: K&N Filters
Part #: 85-1221
Vent your air cleaner.These K&N air filter assembly vents are specifically designed for venting air out of the side of your air cleaner. They are available in different inlet sizes and materials, based on what you need for your application. more
Starting At
$49.74
K & N Filters Air Filter Assembly Vents Air Filter Vent - Stainless Steel - Natural - 6.00 in. Tall - 5 - 8 in. Inlet Tube Diameter K&N VENT KIT; MARINE, 5/8"FLG, 6"H
Brand: K&N Filters
Part #: 85-1662
Vent your air cleaner.These K&N air filter assembly vents are specifically designed for venting air out of the side of your air cleaner. They are available in different inlet sizes and materials, based on what you need for your application. more
Starting At
$16.52
K & N Filters Air Filter Assembly Vents Air Filter Vent - Stainless Steel - Natural - 6.00 in. Tall - 1 - 2 in. Inlet Tube Diameter K&N VENT KIT; MARINE, 1/2"FLG, 6"H
Brand: K&N Filters
Part #: 85-1650
Vent your air cleaner.These K&N air filter assembly vents are specifically designed for venting air out of the side of your air cleaner. They are available in different inlet sizes and materials, based on what you need for your application. more
Starting At
$19.85
Starting At
$9.58
Starting At
$8.73
Starting At
$18.68
K & N Filters Vent - Plastic - Elbo - .500 in. Hose - .563 in. Hole K&N VENT KIT; 90DEG PLASTIC, 1/2"FLG
Brand: K&N Filters
Part #: 85-1120
Starting At
$10.02
