Protection

For Critical Systems

PROTECT YOUR INVESTMENT

Dirt, dust, and other contaminants can wreak havoc on the cylinders, walls, and pistons of your engine—and can eventually shorten its working lifespan. Provide your car, truck, motorcycle, or ATV with premium protection from engine contaminants and deposits, and help avoid premature wear and tear.

Premium protection products like High-Flow Air Filters™, performance oil filters, in-line fuel filters, and performance air intake systems are engineered to help preserve the longevity of your engine.

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PRODUCTS

High-Flow Air Filters™

High-Flow Air Filters™ feature the original pioneering design of layered, oiled cotton media engineered to improve airflow and provide exceptional protection from contaminants.

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High Flow Air Filters
Washable Cabin Air Filters

Washable Cabin Air Filters

Help protect your passengers and interior from traffic pollution, dust, dirt, pollen, mold, mildew, fungi, and bacteria.

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Oil Filters

K&N® oil filters are composed of a highly efficient filter media that allows for high flow rates while providing outstanding engine protection.

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perfomance oil filters

CHOOSE QUALITY PROTECTION

When using a poorly-designed disposable air filter, dust, dirt, and contaminants can make their way into your engine—causing damage and premature wear. In addition, an inefficient oil filter can allow oil contaminants to build up within the engine, reducing its working lifespan. K&N performance protection products are designed to keep contaminants where they belong—out of your engine.


BUILT TO PROTECT

K&N air filters collect and trap particulate matter in a manner very different from disposable filters. A paper filter exhibits a principle called “surface loading”—dust collects only on the surface of the media. In contrast, K&N filters utilize “depth loading”, in which multiple layers of cotton fibers provide particle retention on multiple levels, and the media also features pleats to increase surface area over disposable filters. As a result, K&N filters are able to hold significantly more dirt and particulate matter per square inch of media over an average paper filter.

history

EXTENSIVELY TESTED

K&N performance air filters go through a rigorous testing process—simulating challenging real-world conditions—to ensure that they provide exceptional engine protection. Each filter is designed to provide a high level of airflow while simultaneously targeting an overall filtration efficiency of 98%. Your High-Flow Air Filter™ is protected by K&N’s 10-Year/Million Mile Limited Warranty.

testing

ENGINEERED TO LAST

One High-Flow Air Filter™ is designed to last for the entire lifespan of your vehicle. Under laboratory conditions, a K&N air filter was washed and re-oiled more than 100 times and still provided an exceptionally high level of engine protection and airflow. K&N High-Flow Air Filters™ require servicing once every 50,000 miles under normal highway driving conditions—and the oversized, conical High-Flow Air Filters™ included with some air intake systems only need servicing every 100,000 miles under normal highway driving conditions. K&N high-flow oil filters, cabin filters, fuel filters, and intake systems are all designed to have long service lives while maintaining outstanding performance.

exploded view

Protection Bundles

Now Available

Bundle includes Air Filter, Cabin Air Filter and Oil Filter

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Protection Bundles

What Our Customers HAVE TO Say

"THIS WAS THE FIRST THING I BOUGHT FOR MY CAR WHEN IT WAS BRAND NEW. AT 235,000 MILES WITH NO SMOKE OR ENGINE PROBLEMS I'D SAY IT FULFILLED ITS PROMISE TO PROTECT THE MOTOR."
REPLACEMENT AIR FILTER
THOMAS FROM OKLAHOMA

K&N Has Your Back

K&N 10-Year/Million Mile Limited Warranty

K&N 10 Year/Million Mile Limited Warranty®

K&N auto filters are guaranteed to perform for up to 10 years or 1,000,000 miles without needing replacement. Visit the K&N Million Mile Limited Warranty page for more details.

Guaranteed to Increase Horsepower

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.

The Original Red Air Filter Since 1969 Red 201

K&N
History

K&N Filters has been designing and manufacturing performance air filters since 1969. K&N also makes thousands of racing and specialty type air filters and we are the #1 Filter in NASCAR®.