Availability
Air Filter Element, X-Stream, Round Tapered, Clamp-On, Cotton Gauze, Oiled, Red, 6.81 in. OD, 3.81 in. ID, 2.13 in. Tall, Filtered Cap, Each
Part Number: KNN-RX-4130-1
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
Air Filter Element, Performance, Cotton Gauze, Oiled, Red, Round Tapered, 5.38 in. OD, 4.00 in. ID, 8.00 in. Tall, Chrome Cap, Each
Part Number: KNN-RC-4580
Not Yet Reviewed
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
Air Filter Element, Performance, Oval Tapered, Cotton Gauze, Oiled, Red, 18.75 in. Long, 5.00 in. Wide, 3.81 in Tall, Carbon Fiber Cap, Each
Part Number: KNN-RP-5135
Not Yet Reviewed
Air Filter Element, Performance, Round Tapered, Cotton Gauze, Oiled, Red, 5.38 in. OD, 4.00 in. ID, 7.00 In Tall, Carbon Fiber Cap, Each
Part Number: KNN-RP-4970
Not Yet Reviewed
Air Filter Element, Performance, Round Tapered, Cotton Gauze, Oiled, Red, 5.38 in. OD, 4.00 in. ID, 6.50 In Tall, Carbon Fiber Cap, Each
Part Number: KNN-RP-4980
Air Filter Element, Performance, Oval Tapered, Cotton Gauze, Oiled, Red, 12.0 in. Long, 6.0 in. Wide, 6.0 in. Tall, Carbon Fiber Cap, Each
Part Number: KNN-RP-5070
Not Yet Reviewed
Air Filter Element, X-Stream, Oval, Clamp-On, Cotton Gauze, Oiled, Red, 8.00 in. Long, 6.00 in. Wide, 6.50 in. Tall, Filtered Cap, Each
Part Number: KNN-RX-4750
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
Air Filter Element, X-Stream, Round Tapered, Clamp-On, Cotton Gauze, Oiled, Red, 4.88 in. OD, 3.31 in. ID, 4.88 in. Tall, Filtered Cap, Each
Part Number: KNN-RX-4120-1
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
Air Cleaners, GM Muscle Series, 14 in. Round, 1 in. Drop, Chevy Logo, Aluminum, Black Finish, 3 in. Filter, Red, Cotton Gauze, Chrome Wing nut, Kit
Part Number: HLY-120-220
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
Air Cleaners, GM Muscle Series, 14 in. Round, 1 in. Drop, Chevy Logo, Aluminum, Black Finish, 4 in. Filter, Red, Cotton Gauze, Chrome Wing nut, Kit
Part Number: HLY-120-221
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
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
Not Yet Reviewed
Estimated Ship Date: Monday 12/15/2025
Estimated Ship Date: Monday 12/15/2025
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
Not Yet Reviewed
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
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
Not Yet Reviewed
Estimated Ship Date: Dec 15, 2025 if ordered today
Estimated Ship Date: Dec 15, 2025 if ordered today
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
Not Yet Reviewed
Estimated Ship Date: Dec 18, 2025 if ordered today
Estimated Ship Date: Dec 18, 2025 if ordered today
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
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
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
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
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
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
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-3950S
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
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
Not Yet Reviewed
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
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
Not Yet Reviewed
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
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
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
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
Not Yet Reviewed
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
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
Estimated Ship Date: Dec 30, 2025 if ordered today
Estimated Ship Date: Dec 30, 2025 if ordered today
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
Not Yet Reviewed
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
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
Not Yet Reviewed
Estimated Ship Date: Dec 29, 2025 if ordered today
Estimated Ship Date: Dec 29, 2025 if ordered today
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