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K&N Washable Lifetime Performance Air Filters

4.8 out of 5 stars 1171 Customer Reviews

K&N washable lifetime performance air filters are designed to increase horsepower and acceleration while providing excellent filtration. K&N makes over 1,400 different replacement air filters for virtually every vehicle on the road. These filters are washable and reusable--and are custom-designed to fit into your existing factory air box. Their drop-in design means that adding performance is simple. With most vehicles, you simply remove the disposable air filter and replace it with one of these K&N air filters. Find the model designed for your specific vehicle application.

Results 1 - 25 of 295

Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Round, 14 in. OD, 3.06 in. Tall, Buick, Cadillac, Chevy, Oldsmobile, Pontiac, Each

Part Number: KNN-E-1650

4.9 out of 5 stars ( 40 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Round, 14.00 in. Outside Diameter, 12.00 in. Inside Diameter, 4.00 in. Tall, Universal, Each

Part Number: KNN-E-3750

4.79 out of 5 stars ( 19 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Round, 14.00 in. Outside Diameter, 12.00 in. Inside Diameter, 3.00 in. Tall, Universal, Each

Part Number: KNN-E-3743

4.67 out of 5 stars ( 15 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Round, 14.00 in. Outside Diameter, 12.00 in. Inside Diameter, 2.31 in. Tall, Universal, Each

Part Number: KNN-E-3740

4.64 out of 5 stars ( 22 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Round, 14.00 in. Outside Diameter, 12.00 in. Inside Diameter, 5.00 in. Tall, Universal, Each

Part Number: KNN-E-3760

4.73 out of 5 stars ( 11 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Round, 14.00 in. Outside Diameter, 12.69 in. Inside Diameter, 2.50 in. Tall, Universal, Each

Part Number: KNN-E-3735

4.88 out of 5 stars ( 17 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, Oiled, Cotton Gauze, Red, Panel, 12.75 in. Long, 9.88 in. Wide, 1.56 in. Tall, Chevy, GMC, 2.7-5.3L, 6.2L, 6.6L, Each

Part Number: KNN-33-5083

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Conical Flanged, 6.875 in. Diameter, 6.63 in. Tall, Ford, Mustang, 5.0L, Pair

Part Number: KNN-E-0630

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Round, 10 in. Diameter, 3.5 in. Tall, Buick, Chevy, Dacia, GMC, Oldsmobile, Pontiac, Each

Part Number: KNN-E-1150

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Oval, 19.75 in. Long, 15.75 in. Wide, 2 in. Tall, Dodge, Plymouth, Each

Part Number: KNN-E-1980

5.0 out of 5 stars ( 11 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, Oiled, Cotton Gauze, Red, Panel, 12.44 in. Long, 9.81 in. Wide, 1.19 in. Tall, Chevy, GMC, 4.3L, 5.3L, Each

Part Number: KNN-33-2129

4.87 out of 5 stars ( 46 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Oval, 20.81 in. Long, 9.50 in. Wide, 3 in. Tall, Each

Part Number: KNN-E-1963

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Oval, 14.63 in. Long, 7.75 in. Wide, 2.00 in. Tall, Universal, Each

Part Number: KNN-E-3515

4.93 out of 5 stars ( 14 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Oval, 11.50 in. Long, 8.13 in. Wide, 2.00 in. Tall, Universal, Each

Part Number: KNN-E-3505

5.0 out of 5 stars ( 23 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Oval, 20.81 in. Long, 9.80 in. Wide, 1.81 in. Tall, Ford, Each

Part Number: KNN-E-1960

4.91 out of 5 stars ( 11 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Round, 12 in. Diameter, 3.44 in. Tall, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: KNN-E-1500

4.92 out of 5 stars ( 13 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Round, 9.00 in. Outside Diameter, 7.50 in. Inside Diameter, 5.00 in. Tall, Universal, Each

Part Number: KNN-E-3650

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, Lifetime Performance, Oiled, Panel, Cotton Gauze, Red, Jeep, Ram, Each

Part Number: KNN-33-5125

3.33 out of 5 stars ( 3 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Round, 11.00 in. Outside Diameter, 9.25 in. Inside Diameter, 6.00 in. Tall, Universal, Each

Part Number: KNN-E-3690

Not Yet Reviewed

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, Oiled, Cotton Gauze, Red, Panel, 10.75 in. Long, 9.88 in. Wide, 1.00 in. Tall, Ford, Trucks, Expedition, Lincoln, Navigator, Each

Part Number: KNN-33-2385

4.83 out of 5 stars ( 29 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Round, 14.00 in. Outside Diameter, 12.00 in. Inside Diameter, 4.00 in. Tall, Universal, Each

Part Number: KNN-E-3730

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, Oiled, Cotton Gauze, Red, Panel, 16.00 in. Long, 8.00 in. Wide, 1.00 in. Tall, Chevy, 3.8L, 5.7L, Each

Part Number: KNN-33-2118

5.0 out of 5 stars ( 12 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, Oiled, Cotton Gauze, Red, Panel, 17.56 in. Long, 10.63 in. Wide, 1.06 in. Tall, Chevy, Pontiac, 5.7L, Each

Part Number: KNN-33-2035

4.17 out of 5 stars ( 6 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Tapered Conical, 6.38 in. Tall, Chevy, Corvette Z06, 6.2L, 7.0L, Each

Part Number: KNN-E-0782

5.0 out of 5 stars ( 9 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air

Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Oval, 14.63 in. Long, 7.75 in. Wide, 4.00 in. Tall, Universal, Each

Part Number: KNN-E-3514

5.0 out of 5 stars ( 7 )

Estimated Ship Date: Monday 4/13/2026 if shipped by air

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Estimated Ship Date: Monday 4/13/2026 if shipped by air