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K&N Round Air Filter 14in OD / 12in ID / 2.313in Height

Marsoni M251S
Sale price$83.99
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Get it in 3 business days with 1 day shipping. Friday, May 29
K&N Round Air Filter 14in OD / 12in ID / 2.313in HeightThe K&N E 3740 replacement air filter is designed to increase horsepower and acceleration by reducing restriction and increasing air flow to your engine. The E 3740 is made with oiled layers of woven cotton that offer superior filtration and can be washed and reused repeatedly. K&N replacement air filters can go up to 50,000 miles before cleaning is required, depending on driving conditions. One K&N replacement air filter costs less than replacing
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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
4.0 ★★★★★
Based on 1350 reviews
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J
Verified Purchase
Jerry
New York, US
★★★★★ 5
Fits Subaru forester hybrid good
Size: 2-Pack
These fit good on my forester very easy to change air flow seems very good. So I’m happy with these.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
W
Verified Purchase
Walter Wong
Dallas, US
★★★★★ 5
Fit
Very good product. Fits in my 318i
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 19, 2024
L
Verified Purchase
Loren Clifford
Fort Morgan, US
★★★★★ 5
gorilla grip holder
Fits perfect, grips my drink sooo hard omg
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
V
Verified Purchase
Vali C4
Belleville, US
★★★★★ 4
Fits
this cup holder fits ok in my 2002 BMW 325Ci convertible Not quite as tight as the OEM, but I'm happy to finally have a cup holder
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2025
P
Verified Purchase
Perfect replacement
Dallas, US
★★★★★ 5
Plug and play
Easy plug and play.
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Reviewed in the United States on January 9, 2026

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