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Heavy Duty Air Intake Filter
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These filters are very sturdy, meaning they are incredibly easy to clean and nearly indestructable. They are commercial grade air filters designed specifically for large turbo diesel engines, class 6-8 over-the-road trucks, agricultural and earth moving equipment, and diesel motorhomes. The use of oil is not required for these filters and they are also designed to provide lower restriction and higher air flow. The Hybrid filter medium is comprised of a thick "lofted" non-woven synthetic media that is co-pleated between 2 layers of powder-coated aluminum screen wire. This reinforced medium is then held between either molded urethane (top or bottom) or between steel top and bottom plates and surrounded by a powder-coated steel cage to help withstand the extreme temperatures and pressures that can be present in large turbo diesel applications. One of these filters can replace more than 10 disposable air filters.
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K&N O/E Replacement Air Filters and Air Intake Systems purchased from Authorized Dealers are backed by a 3 year 300,000 mile Warranty when used primarily on paved roads and on vehicles for which they were designed. If one of these products ever fails to provide complete satisfaction, K&N will replace it.
K&N will not cover any K&N product used for 1: any type of racing or competition; 2: any off-road use, custom or modified applications; 3: any off-road or dual sport motorcycle/ ATV use; or 4: any illegal highway use, marine, or industrial applications. All K&N Air Filters not covered by our million mile warranty are warranted against defective materials or workmanship for one year from date of purchase with no mileage limitation. This includes K&N Air Filters sold for ATV's and off-highway or dual-purpose motorcycles.
K&N Air Filters should be cleaned every 50,000 miles for normal highway use, more often in dusty conditions. Cleaning should be done with water or K&N Heavy Duty Air Filter Cleaner only. No oil treatment is ever needed. Use of compressed air, or chemicals not specifically designed to clean and re-oil cotton air filters (i.e. gasoline, transmission fluid, motor oil, lightweight oil, or diesel fuel) will void the warranty. Any damaged, abused or modified K&N Air Filters will not be warranted.