★★★★★ 5
Quality Air Filter
This filter is a quality product and was easy to install in my CR-V.
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Reviewed in the United States on June 29, 2024
K&N Filter Universal Rubber Filter Round Tapered 4.5in Flange 5.875in Base 4.5 inch Top 6in Height
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
K&N Filter Universal Rubber Filter Round Tapered 4.5in Flange 5.875in Base 4.5 inch Top 6in HeightSKU: RU 4740 UPC: 024844102119 K&N RU 4740 Universal Clamp On Air Filter Round Tapered 4. 5in Flange 5. 875in Base 4. 5in Top 6in Height The K&N RU 4740 universal clamp on air filter fits a wide range of equipment including racing vehicles radio controlled cars generators snowmobiles and tractors. Its round tapered design features a 4. 5 inch centered rubber flange 5. 875 inch base inside diameter 4. 5 inch top inside diameter 6 inch top outside
Quick Dispatch:
Your K&N Filter Universal Rubber Filter Round Tapered 4.5in Flange 5.875in Base 4.5 inch Top 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
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You'll receive a tracking link by email once your K&N Filter Universal Rubber Filter Round Tapered 4.5in Flange 5.875in Base 4.5 inch Top 6in Height 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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4.3 ★★★★★
Based on 1795 reviews
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Product Reviews
★★★★★ 5
Good price
Better to install myself than 100% markup at the garage
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Reviewed in the United States on August 8, 2024
★★★★★ 5
Air filters for Honda Accord
Quick delivery and good quality
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Reviewed in the United States on August 1, 2025
★★★★★ 5
Perfect
Great quality and perfect fit. Don’t fall for the ones that cost more and say that they are super duper filtering marvels. They work the same way and you have to replace them eventually anyway.
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Reviewed in the United States on October 8, 2024
★★★★★ 5
Perfectly Fine and Inexpensive
This off-brand filter was $10 cheaper than the local auto store, nearly $20 cheaper than the dealership, and meets the original OEM requirements. My husband is an ASE certified master technician and does all of our car maintenance and repair work himself and purchasing this filter rather than getting the filter from the dealership or the local auto store saved us a good bit of money and it is the same quality. Just make sure that the OEM number is correct for your vehicle and you have nothing to worry about.
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Reviewed in the United States on November 14, 2025
