K & N

K&N Engineering in Riverside California is the world's leading manufacturer of washable performance air filters and air intake systems. K&N invented the reusable high flow cotton air filter in 1969 and has been perfecting the technology ever since. K&N is a world class filtration company selling air filters, oil filters, and air intakes in over 30 countries. K&N sells over 5,000 products designed for cars, trucks, motorcycles, engines, and industrial applications. From their Million Mile Warranty to their Consumer Protection Pledge, K&N stands behind their products and their consumers 100%. Visit now knfilters.com.

Search K & N Categories

Air Filter

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Cabin Air Filter

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Engine Filter

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Fuel Pump

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Oil Filter

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Fuel Pump, Tank, Turbo System by K-N Engineering

K&N Universal Inline Fuel Pumps

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* Compatible with diesel, biodiesel, gasoline, E85, methanol, ethanol, alcohol and other fuels
* Universal design fits most applications
* Self-priming design provides a quiet running volume
* Eliminates vapor lock and flooding
* Fuel filter and installation hardware is included
Inline Fuel Pumps
K&N Inline Fuel Pumps provide premium quality fuel system hardware with a universal design that fits a wide variety of applications. Compatible with most fuels, this self-regulating 12-volt pump helps prevent vapor lock and flooding.
K&N Universal Inline Fuel Pump 81-0400
K&N 81-0400 universal inline fuel pump is engineered to pump 15 gallons per hour between 1 and 2 psi.
Inline Fuel Pump 81-0400
K&N Inline Fuel Pump 81-0401
K&N 81-0401 universal inline fuel pump is engineered to pump 25 gallons per hour between 1.5 and 4 psi.
Inline Fuel Pump 81-0401
K&N Inline Fuel Pump 81-0402
K&N 81-0402 universal inline fuel pump is engineered to pump 32 gallons per hour between 4 and 7 psi.
Inline Fuel Pump 81-0402
K&N Inline Fuel Pump 81-0403
K&N 81-0403 universal inline fuel pump is engineered to pump 34 gallons per hour between 7 and 10 psi.
Inline Fuel Pump 81-0403

K&N Replacement Air Filters

K&N Oil Filter - Automotive Oil Filters

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* Designed to Increase Horsepower
* Easy to Install Drop-in Design
* Lifetime Reusable Air Filter
* Million Mile Limited Warranty(r)
* Lasts up to 50,000 Miles Between Servicing
Order your K&N replacement air filter Factory Direct today!
* Fast and FREE SHIPPING with Minimum Order
* Simple, Quick and Secure Online Ordering
Adding vehicle performance and excellent engine protection is easy with K&N automobile air filters
Why Get a K&N Air Filter?
A K&N replacement air filter is designed to improve vehicle performance, provide excellent engine protection and last the life of your car, truck, motorcycle, ATV and more. K&N air filters are easy to install and come with the worry-free K&N Million Mile Limited Warranty(r).
K&N Air Filters are Designed to Increase Horsepower
K&N automotive replacement air filters are designed to add horsepower and acceleration to your car or truck by providing up to 50% more air flow to your engine. More air flow can result in crisper throttle response and more torque throughout the engine RPM range. K&N air filters are made up of multiple layers of oiled cotton filter media that not only provide superior air flow but also excellent filtration to ensure long engine life.
K&N Air Filters are Easy to Install
K&N replacement air filters are made for virtually every vehicle on and off the road and they are custom designed to fit into your specific vehicle's factory air box. Instead of swapping out your old paper air filters over-and-over again, with K&N you simply drop in a K&N replacement air filter once and you've boosted the lifetime performance of your vehicle in as little as 5 minutes!
Lifetime Reusable Air Filters
K&N replacement air filters last up to 50,000 miles between servicing, depending on driving conditions. With the K&N Air Filter Cleaning Kit you can easily clean and re-oil your air filter bringing it back to brand-new condition and r


eady for another 50,000 miles of use. Your one K&N air filter is designed to last for the lifetime of your vehicle which can save you a bundle of money in the long-run and eliminate the waste generated from buying and disposing countless paper air filters.
K&N Million Mile Limited Warranty(r)
K&N air filters are guaranteed to perform for up to10 years or 1,000,000 miles without needing replacement. For full details visit the K&N Million Mile Limited Warranty page for more details.
Air Filter Filtration & Engine Protection
K&N air filters offer an optimal blend of high air flow, filtration efficiency, durability and dust capacity. K&N high flow filter media has been tested in our own in-house laboratories and by independent labs using the ISO5011 air filtration standard developed by the Society of Automotive Engineers. Our goal at K&N is to design air filters with the most possible airflow while providing guaranteed engine protection.
K&N Air Filter Testing
K&N is dedicated to providing quality air filter products that meet or exceed your high performance and high filtration demands. K&N uses independent testing labs in addition to conducting tests using our own state-of-the-art in-house testing laboratory. The quality of K&N air filters can also be seen outside the laboratory. Carl Judice, of New Iberia, Louisiana, drove more than one million miles with a single K&N air filter installed in his three-quarter ton Chevy pickup. Carl points out that he has never had to rebuild the engine or remove the cylinder head from his trusty pickup truck. Customer satisfaction along with real-world testing doesn't get any better than that.
Air Filter Fuel Economy
Fuel economy testing and mileage claims are not as cut and dry as they may seem. The EPA's website states, "EPA's fuel economy estimates are designed to allow consumers to comparison shop. Your fuel economy will almost certainly vary from the EPA's fuel economy rating. This is based on a number of factors, such as weather, road conditions, your driving and maintenance habits, and your use of air conditioning." Many exaggerated claims are found in the marketplace by automotive product manufacturers claiming to improve vehicle gas mileage. K&N does not make any general fuel economy claims. We simply encourage you to try our washable air filter products for yourself.
K&N Air Filter Oil
A K&N air filter is designed with four to six layers of cotton gauze media sandwiched between two aluminum wire screens. The cotton media is then treated with a specially formulated grade of filter oil that causes tackiness throughout the cotton's microscopic strands. The cotton in a K&N air filter allows high volumes of airflow, and when combined with the tackiness of the filter oil creates an efficient filtering media that ensures engine protection.
K&N Consumer Protection
The K&N Consumer Protection Plan goes a step further than the K&N Million Mile Limited Warranty. At times, the performance aftermarket has been plagued by automotive manufacturers and auto dealers that may attempt to discourage you from modifying your vehicle. They would prefer that you buy OE parts and not customize your car or truck and have even voided their own manufacturer's warranty due to vehicle modifications. K&N and the Magnuson-Moss Warranty Act protect consumers from such denied warranty claims. When you buy a K&N OE replacement air filter or air intake system you can be confident your vehicle's warranty will remain in effect. If you encounter a dealership that wants to void your warranty because of one of our products, K&N will resolve the issue so you won't have to. We believe K&N makes The World's Best Air Filter and we stand behind that claim 100 percent.
Consumer Protection Pledge
K&N pledges to our customers that they will not be taken advantage of and charged for a repair due to a dealership warranty denial blamed on the presence of a K&N product.
K&N Air Filter History
K&N Filters has been designing and manufacturing performance air filters since 1969. We have designed and manufactured over 2400 high flow air filters to fit most of the latest passenger vehicles and over 500 performance air intakes for automotive and motorcycle owners interested in increasing vehicle horsepower and acceleration. K&N also makes thousands of racing and specialty type air filters and we are the #1 Filter in NASCAR(r).
Other K&N Performance Air Filter Products
K&N replacement air filters for motorcycle & ATV offer a lifetime of performance for Harley-Davidson(r) motorcycles, sports bikes, off-road vehicles, watercraft, snowmobiles and go karts. K&N heavy duty diesel air filters offer excellent filtration and engine protection for class 4-8 trucks, diesel equipment, motorhomes, recreational vehicles, buses, fire trucks, transport vehicles, refrigeration equipment, generators and big rigs. K&N small engine & light industrial air filters are designed to improve the performance of tractors, outdoor power equipment and other small engine applications. K&N also offers a variety of racing air filters, boat, watercraft and other marine flame arrestors, universal clamp on air filters and crank case vent filters for performance and engine protection. Many universal air filter sizes and shapes are available to fit your needs. A K&N car air filter replaces the stock paper filter and provides performance and engine protection.

K&N Wrench-Off Automotive Oil Filters

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* High Flow Rates
* Exceptional Filtration
* Strong and Durable
Oil Filters for Cars, Trucks, SUV and more!
K&N Oil Filters provide outstanding filtration levels and a high oil flow rate. They are able to handle heavy duty applications and block 99% of foreign material. They are great with synthetic and conventional oils! K&N offers Premium Wrench-Off, Pro-Series, Cartridge and Billet Oil Filters for a range of vehicle applications and service providers.

K&N Pro Series Automotive Oil Filters

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K&N wrench-off oil filters are great for race applications. These canister oil filters are known for their durability, strength and easy wrench-off removal design. K & N Wrench-off motorcycle oil filter canisters have a 17mm nut and automotive oil filter canisters have a 1" nut.

K&N Cartridge Automotive Oil Filters

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K&N Pro Series Oil Filters are specifically designed for service providers and professional installers. The Pro Series Oil Filter is known for their high capacity, low restriction design and for enhanced engine protection.

K&N Washable / Reusable Billet Automotive Oil Filters

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K&N high flow cartridge oil filters provide great filtration and are ideal for high end synthetic motor oils. Cartridge Oil Filters work for a range of SUV, truck and car applications.

K&N Inline Fuel/Oil Filters

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K&N Billet Oil Filters are constructed from a billet aluminum housing for strength and durability. It has a stainless steel micro-sheen and magnets for extra capacity and debris removal. It is washable and can be reused.

Cabin Air Filter by K&N Autoparts

Cabin Air Filter by K&N Autoparts

K&N Cabin Air Filter Overview
Helps Control Odors
Cleans & Freshens Incoming Air
Electrostatically Charged to Capture Most Mold, Mildew, Pollen, Spores, Fungus & Germs
Factory Fit, Pre-Treated & Ready to Install
K&N Cabin Air Filters
The K&N Washable Cabin Air Filter is the first of its kind designed to replace your vehicle's stock cabin air filter with a washable and reusable version that cleans and freshens incoming air. Watch the K&N Washable Cabin Air Filters Overview video for more information on how cabin air filters work. K&N Cabin Air Filters are designed to be cleaned and reused over and over again. Using a combination of an advanced synthetic filter media and K&N Refresher(tm) spray, the K&N Washable Cabin Air Filter grabs and holds dust particles.
Does your vehicle have a cabin air filter?
Since automotive cabin air filters have only recently been integrated into US automobile AC/heating systems, many vehicle owners do not realize their car is equipped with a cabin air filter. To determine if your vehicle has a cabin air filter you would first check the owner's manual. You can also inspect the vehicle for the location of the cabin air filter which is typically found in one of these three places:
* Under the hood, near the windshield
* Underneath the dashboard
* Behind the glove compartment
How to replace a cabin air filter
Most cabin air filters can be replaced without tools but some require basic hand tools to open the cabin air filter compartment. Detailed installation instruction sheets and videos are provided on the specific product web page for the filter that matches your vehicle.
Cleaning the K&N Washable Cabin Air Filter
K&N recommends servicing your Washable Cabin Air Filter every 12 months or 12,000 miles. This is similar to the typical recommended replacement interval for a disposable cabin air filter. Cleaning your K&N Washable Cabin Air Filter requires the use of a K&N Refresher Kit by following these simple steps:
* Remove the filter from your vehicle
* Spray the cabin filter cleaner onto the filter
* Rinse the filter with water to remove all dirt
* Dry naturally for 20-30 minutes
* Apply K&N cabin air filter Refresher(tm) to the filter media
* Re-install the filter back into your vehicle
K&N Cabin Air Filter Refresher Kit
K&N cabin air filter cleaning kits come with a 12-ounce pump spray bottle of cabin filter cleaner that loosens dirt and road grime from your K&N cabin air filter and helps remove trapped mold, mildew, fungus, allergens, bacteria and other debris from it. Also included is an 8-ounce pump spray bottle of cabin air filter Refresher which increases the electrostatic properties of the cabin air filter helping it to trap contaminants. This long lasting formula helps eliminate the source of most odors and it is made from safe, biodegradable ingredients.

Air Filter by K&N Engineering

K&N Air Filters & Air Filter Cleaning Kits

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High flow air filters designed to improve engine performance
* Designed to increase horsepower, torque, and acceleration
* Excellent filtration and dependable protection for long engine life
* Washable and reusable air filters that are easy to clean and reuse
* Long service intervals up to 50,000 miles depending on driving conditions
* Environmentally friendly reusable air filters

Automotive Stock Replacement Air Filters

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K&N manufactures air filters for just about every car and truck on the road. K&N automotive stock replacement air filters are made with an oiled cotton media that is washable and reusable. They are designed to achieve high, virtually unrestricted air flow while maintaining filtration levels critical to ensure long engine life.

Motorcycle and ATV Stock Replacement Air Filters

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K&N motorcycle and ATV stock replacement air filters are made with an oiled cotton media for high air flow and outstanding engine protection. They have a long service life and when dirty are easy to clean.

Universal Clamp-on Air Filters

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K&N's Universal Clamp-on Air Filters are designed and manufactured for a wide variety of applications. They have an oiled cotton filter media that is washable and reusable. K&N manufactures hundreds of universal clamp-on air filters which are available in round, cone (tapered) and oval designs.

Washable Cabin Air Filters

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The K&N Washable Cabin Air Filter is the first of its kind designed to replace your vehicle's stock cabin air filter with a washable and reusable version that cleans and freshens incoming air.

Industrial / Small Engine Air Filters

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K&N manufactures many direct replacement air filter elements for small industrial engines, utility lawn and garden units, air compressors, generators, chain saws, and more. Most of them are made with a synthetic air filter media and can be cleaned with K&N synthetic air filter cleaner and reused again and again.

Heavy Duty Diesel Air Filters

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K&N's line of washable commercial grade air filters are made from a durable synthetic air filter media. They are designed specifically for large turbo diesel engines, class 6-8 over-the-road trucks, agricultural and earth moving equipment, and diesel motorhomes.

Air Filter Cleaning Kits and Accessories

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K&N has air filter cleaning supplies for K&N cotton, synthetic and heavy duty synthetic air filters. K&N stock replacement air filters have cotton media. They are cleaned with K&N Power Kleen Industrial Strength Degreaser and then oiled with a specialized blend of oil.

Racing and Custom Air Filters

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K&N makes many types of air filters and assemblies for racing, off-road vehicles, carbureted engines, and more. These include filters, filter assemblies, filter lids, hood scoops, air boxes, and other products.

Marine Air Filters/Flame Arrestors

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K&N Marine Flame Arrestors are marine approved per the SAE J1928 standard. They are washable and reusable and are designed to improve horsepower and torque.

Crankcase Vent Air Filter-Breather Filters

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K&N crankcase vent filters and breather filters were designed for racing needs and to look great in show cars. They come in several styles with rubber or chrome tops, with or without shields and in a variety of mounting types for just about any valve cover need.

Air Filter Facts

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There's a lot of science behind air filter design. Read how K&N low restriction air filters provide superior filtration of harmful contaminants and why that's important to your engine.

Air Filters by Vehicle Manufacturer

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K&N makes replacement air filters for virtually every vehicle and engine. You can add superior filtration and performance to your car, truck, motorcycle, ATV or even water craft. Select the manufacturer of your vehicle here and browse to the K&N air filter that fits your vehicle.

Cabin Air Filters by Vehicle Manufacturer

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K&N creates Cabin Air Filters for a range of vehicles. These cabin air filters are designed to be a simple and quick replacement for your vehicle's stock cabin air filter. Cabin air filters are a recent addition to automotive AC/heating systems and many vehicle owners do not know they exist. K&N Cabin Air Filters are washable and reusable and will last the life of your vehicle.