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K&N Round Air Filter Assembly 14in. ID / 4..12in. Height / 5.125in. Neck Flange / 7/8in. Drop Ba

Marsoni M251S
Sale price$157.99
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Get it in 3 business days with 1 day shipping. Friday, May 29
K&N Round Air Filter Assembly 14in. ID / 4..12in. Height / 5.125in. Neck Flange / 7/8in. Drop BaK&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 14in. ID / 4..12in. Height / 5.125in. Neck Flange / 7/8in. Drop Ba 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 14in. ID / 4..12in. Height / 5.125in. Neck Flange / 7/8in. Drop Ba 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
4.1 ★★★★★
Based on 2170 reviews
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Product Reviews
R
Verified Purchase
Rick
Alexandria, US
★★★★★ 5
Great fitment
Nice fitment
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 15, 2025
L
Verified Purchase
Lauren Drennan
Birmingham, US
★★★★★ 2
F250 cabin filter change
Too thick. Air flow decreased significantly which is terrible in the AZ heat!
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Reviewed in the United States on July 27, 2025
D
Verified Purchase
Dale
Lake Worth, US
★★★★★ 5
Clean filtered air
Installed easy. works great. Clean filtered air.
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Reviewed in the United States on July 21, 2025
A
Verified Purchase
Amazon Customer
West Palm Beach, US
★★★★★ 5
Great price
Both filters fit and worked and had a great price.
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Reviewed in the United States on March 15, 2026
M
Verified Purchase
maria sames
Lowell, US
★★★★★ 5
Better then oem
Great product quality is definitely a plus had no issues. Been buying these for 3 years.
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Reviewed in the United States on November 19, 2025

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