


K&N Round Air Filter Assembly 5.125 in FLG / 9in OD / 6.375 in H w/ Vent
Marsoni
M251S
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
Quick Dispatch:
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.
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 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
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4.8 ★★★★★
Based on 1724 reviews
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Product Reviews
★★★★★ 5
Perfect fit
Pserfect fit and function
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 27, 2023
★★★★★ 3
Good
Buy it to replace my car old filter. So far so good. Cheaper than buy at store.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2024
★★★★★ 5
Great item
Well constructed. Great quality. Fit perfectly in 2023 honda pilot. Nice value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026
★★★★★ 5
It fits, just install it exactly like the original filter.
This fits just fine. Please pay attention to install it exactly like the OEM filter is installed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026
★★★★★ 5
If you keep your vehicles a few years this will save money
I have been using K&N for 50 years very good quality over OEM filters and it gives your engine better breathing. Saves money over the long run.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
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