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K&N Universal Air Filter - Round Tapered 4in Flange ID / 5.375in Base OD / 4in Top OD / 5.5in H

Marsoni M251S
Sale price$177.07
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K&N Universal Air Filter - Round Tapered 4in Flange ID / 5.375in Base OD / 4in Top OD / 5.5in HThe RP 4660 Universal Air Filter is constructed from an oiled cotton filter media. It comes with a K&N embossed carbon fiber top for strength and durability. The carbon fiber element adds to the light weight design and gives this filter a smooth glass like finish. The RP 4660 is a clamp on filter that has an inside flange diameter of 4 inches and a flange length of 5 8 inches. The base is 5 3 8 inches and the filter height is 5 1 2 inches. This Part
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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4.3 ★★★★★
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Paul P.
Pawtucket, US
★★★★★ 5
Perfect
Color: 20pcs
Excellent value and a perfect replacement for the OEM clips. Nice secure hold.
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Reviewed in the United States on December 22, 2025
G
Verified Purchase
Guillo
Port Orchard, US
★★★★★ 5
Protección!
Exelente!
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Reviewed in the United States on May 22, 2026
J
Verified Purchase
Jesus suarez
Birmingham, US
★★★★★ 5
Recomendado
Si utilizas un 4.6L Stoker es obligatorio utilizar en cada cambio de aceite.
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Reviewed in the United States on May 30, 2026
E
Verified Purchase
Ed H.
Natrona Heights, US
★★★★★ 5
Hard to find.
Good stuff. Hard to find. It should extend my engine life.
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Reviewed in the United States on April 2, 2026
D
Verified Purchase
doug kowitz
Boise, US
★★★★★ 4
Great product
Quick delivery.
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Reviewed in the United States on April 29, 2026

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