HARLEY-DAVIDSON Air & Fuel Delivery

Air Cleaner, Street Metal Series, 10 in. Long, Oval, Black Top, Finned, Cotton Gauze Filter, Red, 2.38 in. Tall, for use on Harley-Davidson®, Kit

Part Number: KNN-RK-3953

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Air Cleaner, Street Metal Series, 10 in. Oval, Black Top, Finned, Cotton Gauze Filter, Red, 2.38 in. Tall, for use on Harley-Davidson®, Kit

Part Number: KNN-RK-3956

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Air Cleaner, Street Metal Series, 10 in. Long, Oval, Black Top, Finned, Cotton Gauze Filter, Red, 2.38 in. Tall, for use on Harley-Davidson®, Kit

Part Number: KNN-RK-3952

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Air Cleaner, Street Metal Series, Unique, Black Top, Finned, Raised Base, Cotton Gauze Filter, Red, 2.63 in. Tall, for use on Harley-Davidson®, Kit

Part Number: KNN-RK-3955

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Air Cleaner, Street Metal Series, Unique, Black Top, Gloss, Raised Base, Cotton Gauze Filter, Red, 2.63 in. Tall, for use on Harley-Davidson®, Kit

Part Number: KNN-RK-3950

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Air Intake, 57 Series FIPK, Aluminum Tube, Polished, Cotton Gauze Filter, Oiled, Red, for use on Harley-Davidson®, 885cc, 1213cc, Kit

Part Number: KNN-57-1126P

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Air Intake, 57 Series FIPK, Aluminum Tube, Black, Cotton Gauze Filter, Oiled, Red, for use on Harley-Davidson®, 1442cc, 1573cc, 1688cc, Kit

Part Number: KNN-57-1125

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Air Cleaner, RK Series, Teardrop, Aluminum, Chrome Top, Black Base, Cotton Gauze Filter, Red, 2.25 in. Tall, for use on Harley-Davidson®, Kit

Part Number: KNN-RK-3932

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Dec 29, 2025 if ordered today

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Air Intake, 57 Series FIPK, Aluminum Tube, Black, Cotton Gauze Filter, Oiled, Red, for use on Harley-Davidson®, 885cc, 1213cc, Kit

Part Number: KNN-57-1126

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Air Cleaner, RK Series, 6.25 in. Round, Aluminum, Chrome, Cotton Gauze Filter, Red, 2.125 in. Tall, for use on Harley-Davidson®, Kit

Part Number: KNN-RK-3933

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Air Cleaner, RK Series, 7.0 in. Long, Oval, Aluminum, Black Gloss, Cotton Gauze Filter, Red, 1.7 in. Tall, for use on Harley-Davidson®, Kit

Part Number: KNN-RK-3909-1

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Air Cleaner, Street Metal Series, 10 in. Oval, Silver Top, Finned, Cotton Gauze Filter, Red, 2.38 in. Tall, for use on Harley-Davidson®, Kit

Part Number: KNN-RK-3956S

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Air Intake, 57 Series FIPK, Aluminum Tube, Polished, Cotton Gauze Filter, Oiled, Red, for use on Harley-Davidson®, 1573cc, 1688cc, 1803cc, Kit

Part Number: KNN-57-1122P

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Air Intake, 57 Series FIPK, Aluminum Tube, Black, Cotton Gauze Filter, Oiled, Red, for use on Harley-Davidson®, 1753cc, 1868cc, Kit

Part Number: KNN-57-1138

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Air Intake, 57 Series FIPK, Aluminum Tube, Silver, Cotton Gauze Filter, Oiled, Red, for use on Harley-Davidson®, 1753cc, 1868cc, Kit

Part Number: KNN-57-1138C

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Air Intake, AirCharger, 63 Series, Aluminum Tube, Polished, Cotton Gauze Filter, Oiled, Red, for use on Harley-Davidson®, 885cc, 1213cc, Kit

Part Number: KNN-63-1126

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Air Cleaner, Street Metal Series, 6.25 in. Round, Chrome Top, Black Base, Cotton Gauze Filter, Red, 2.13 in. Tall, for use on Harley-Davidson®, Kit

Part Number: KNN-RK-3945

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Air Cleaner, Street Metal Series, Unique, Black Top, Gloss, Raised Base, Cotton Gauze Filter, Red, 2.63 in. Tall, for use on Harley-Davidson®, Kit

Part Number: KNN-RK-3951

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 29, 2025 if ordered today

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Air Cleaner, Street Metal Series, Unique, Silver Top, Gloss, Raised Base, Cotton Gauze Filter, Red, 2.63 in. Tall, for use on Harley-Davidson®, Kit

Part Number: KNN-RK-3951S

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Air Cleaner, RK Series, 9.0 in. Long, Oval, Aluminum, Black Gloss, Cotton Gauze Filter, Red, 2.2 in. Tall, for use on Harley-Davidson®, Kit

Part Number: KNN-RK-3910-1

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Dec 29, 2025 if ordered today

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