HARLEY-DAVIDSON Air & Fuel Delivery

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

Part Number: KNN-RK-3953S

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Estimated Ship Date: Dec 23, 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®, 1753cc, 1868cc, Kit

Part Number: KNN-57-1139

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 23, 2025 if ordered today

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Air Filter Element, High-Flow, Cotton Gauze, Oiled, Red, Unique, 6.75 in. Long, 6.44 in. Wide, 1.69 in.Tall, Universal, Each

Part Number: KNN-HD-1718

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Estimated Ship Date: Dec 22, 2025 if ordered today

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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: Tomorrow if ordered today

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Air Cleaner, RK Series, 8.6 in. Long, Teardrop, Aluminum, Black Gloss, Cotton Gauze Filter, Red, 2.25 in. Tall, for use on Harley-Davidson®, Kit

Part Number: KNN-RK-3932B

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Estimated Ship Date: Tomorrow if ordered today

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Air Cleaner, RK Series, Oval, Aluminum, Black Gloss, Cotton Gauze Filter, Red, 2.19 in. Tall, for use on Harley-Davidson®, Kit

Part Number: KNN-RK-3942

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 18, 2025 if ordered today

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

Part Number: KNN-RK-3954B

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Estimated Ship Date: Dec 18, 2025 if ordered today

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Air Filter Element, RK Series, Replacement, Oiled, Cotton Gauze, Red, 8.63 in. Long, 6.38 in. Wide, 2.13 in. Tall, for use on Harley-Davidson®, Each

Part Number: KNN-E-3975

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Estimated Ship Date: Dec 18, 2025 if ordered today

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Air Cleaner, RK Series, 7.5 in. Round, Aluminum, Chrome Top, Black Base, Cotton Gauze Filter, Red, 2.13 in. Tall, for use on Harley-Davidson®, Kit

Part Number: KNN-RK-3934

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Estimated Ship Date: Dec 18, 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®, 1573cc, 1688cc, 1803cc, Kit

Part Number: KNN-57-1122

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Air Filter Element, Performance, Cotton Gauze, Oiled, Red, Round, 4.44 in. OD, 3.00 in. ID, 5.22 in. Tall, Aluminum Cap, Each

Part Number: KNN-RE-5287

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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, Silver Top, Finned, Cotton Gauze Filter, Red, 2.38 in. Tall, for use on Harley-Davidson®, Kit

Part Number: KNN-RK-3952S

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Estimated Ship Date: Dec 29, 2025 if ordered today

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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-57-1139S

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Air Filter Element, High-Flow, Cotton Gauze, Oiled, Red, 8.44 in. Long, 5.25 in. Wide, 1.75 in.Tall, for use on Harley-Davidson®, 54ci, 74ci, Each

Part Number: KNN-HD-1388

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Estimated Ship Date: Dec 29, 2025 if ordered today

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Air Filter Element, High-Flow, Cotton Gauze, Oiled, Red, 9.19 in. Long, 6.88 in. Wide, 2.38 in.Tall, for use on Harley-Davidson®, 30ci, 46ci, Each

Part Number: KNN-HD-4915

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Estimated Ship Date: Dec 23, 2025 if ordered today

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Air Filter Element, High-Flow, Cotton Gauze, Oiled, Red, 7.06 in. Long, 5.63 in. Wide, 1.69 in.Tall, for use on Harley-Davidson®, 82ci, Non-US, Each

Part Number: KNN-HD-1396

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Estimated Ship Date: Dec 23, 2025 if ordered today

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

Part Number: KNN-57-1134S

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Estimated Ship Date: Dec 23, 2025 if ordered today

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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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Estimated Ship Date: Dec 23, 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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Estimated Ship Date: Dec 23, 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®, 1753cc, 1868cc, Kit

Part Number: KNN-57-1138

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Estimated Ship Date: Dec 23, 2025 if ordered today

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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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Estimated Ship Date: Dec 23, 2025 if ordered today

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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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Estimated Ship Date: Dec 23, 2025 if ordered today

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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 23, 2025 if ordered today

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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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Estimated Ship Date: Dec 23, 2025 if ordered today

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

Part Number: KNN-RK-3933B

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Estimated Ship Date: Dec 23, 2025 if ordered today

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