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K&N Round Air Filter Assembly 5.125 in FLG / 9in OD / 6.375 in H w/ Vent
K&N Round Air Filter Assembly 5.125 in FLG / 9in OD / 6.375 in H w/ Vent
K&N Round Air Filter Assembly 5.125 in FLG / 9in OD / 6.375 in H w/ Vent
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K&N Round Air Filter Assembly 5.125 in FLG / 9in OD / 6.375 in H w/ Vent

Marsoni M251S
Sale price$146.99
Pay 4 payments of $36.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
K&N Round Air Filter Assembly 5.125 in FLG / 9in OD / 6.375 in H w/ VentK&N's custom air cleaner assemblies are designed with the racer in mind. They incorporate good looks as well as the superior air flow that you expect from K&N. These custom air cleaner assemblies are designed for use with any engine that uses a round element air cleaner housing. They incorporate our famous K&N Air Filters and provide more air flow than other assemblies of this type. Available in 4 different designs, the perfect assembly is sure to be
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Your K&N Round Air Filter Assembly 5.125 in FLG / 9in OD / 6.375 in H w/ Vent orders ship within 1-2 business days.

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  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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You'll receive a tracking link by email once your K&N Round Air Filter Assembly 5.125 in FLG / 9in OD / 6.375 in H w/ Vent ships.

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 1734 reviews
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Product Reviews
A
Verified Purchase
Arnie Daugherty
Louisville, US
★★★★★ 3
Found one that fit.
It's a shame you have to buy an assortment just to find one that would work for my vehicle. You can't find an OEM one without buying the whole headlight assembly. Oh well.....
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 16, 2025
O
Verified Purchase
O.G.
San Leandro, US
★★★★★ 5
Quedo bien para pontiac vibe 2003
Buena calidad aunque no vienen en par, asi que si necesitas 2 tendras que hacer 2 pedidos
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 9, 2025
J
Verified Purchase
jose
Port Orchard, US
★★★★★ 2
Lights
They don't fit 2016 Chevrolet Silverado But they arrived quick .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
A
Verified Purchase
Amazon Customer
San Leandro, US
★★★★★ 5
Effective
Size: 300 Milliliter
This worked wonders on my car’s performance! After one use, the engine started idling much smoother and the throttle feels more responsive. A very high-quality German-made product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
M
Verified Purchase
Matt
Pawtucket, US
★★★★★ 5
Great for All Cars but Especially German Cars
Size: 300 Milliliter
I use this in our used VW we bought and it helps keep the carbon build up down with their direct injection feature. I pair it with their oil additive which helps lubricate the rings so they don't stick as much.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026

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