Skip to content

K&N Universal Air Filter (4in. Flange / 6in. Base OD / 4-5/8in. Top OD / 6in. Height)

Marsoni M251S
Sale price$67.96
Pay 4 payments of $16.99 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
K&N Universal Air Filter (4in. Flange / 6in. Base OD / 4-5/8in. Top OD / 6in. Height)K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably a K&N Universal air filter for your equipment. All filters are constructed with ultra strong molded pliable rubber flanges which absorb vibration and allow for secure
Easy Shipping

Quick Dispatch:

Your K&N Universal Air Filter (4in. Flange / 6in. Base OD / 4-5/8in. Top OD / 6in. Height) orders ship within 1-2 business days.

Delivery Options:

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

Order Tracking:

You'll receive a tracking link by email once your K&N Universal Air Filter (4in. Flange / 6in. Base OD / 4-5/8in. Top OD / 6in. Height) ships.

Need Help?
Questions about K&N Universal Air Filter (4in. Flange / 6in. Base OD / 4-5/8in. Top OD / 6in. Height), sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for K&N Universal Air Filter (4in. Flange / 6in. Base OD / 4-5/8in. Top OD / 6in. Height) in your area.

Get Shipping Estimates

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 982 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
N
Verified Purchase
Nicole Beth-Manning
Waukegan, US
★★★★★ 5
Looks good and fits
It looks good and fits perfectly; other than that, I have no idea how to tell if it's better or worse than anything else.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
W
Verified Purchase
WER
Alexandria, US
★★★★★ 5
Happy with purchase
Works as well at the fraction of the price. Very happy with the purchase. Very easy to install
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2025
A
Verified Purchase
Amazon Customer
Grantham, US
★★★★★ 5
Great OEM replacement at hlaf the cost
Looks exactly like the OEM filter a quality product. it is the same size fit and performance. Filter replacement is fast 10 min tops, it's crazy how much a dealer charges to replace it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2025
E
Verified Purchase
Elliot
Louisville, US
★★★★★ 5
As good as Honda OEM
Perfect fit. Lasts as long as OEM for 25% of the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 27, 2025
F
Verified Purchase
Fatman
Whiting, US
★★★★★ 5
Great fit
Perfect fit. FYI - I bought the exact same one on EBAY FOR $11.78
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026

recommand products