★★★★★ 4
New
Looks great no issues with the product am happy with it
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Reviewed in the United States on August 3, 2025
K&N Universal Clamp-On Air Filter 2-3/4in FLG / 5-1/16in B / 3-1/2in T / 4-3/8in H
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
K&N Universal Clamp-On Air Filter 2-3/4in FLG / 5-1/16in B / 3-1/2in T / 4-3/8in HSKU: RU 5135 UPC: 024844394378 K&N Universal Clamp On Air Filter 2 3 4in FLG 5 1 16in B 3 1 2in T 4 3 8in H K&N RU 5135 is a round clamp on universal air filter designed for racing vehicles radio controlled cars generators snowmobiles tractors and custom air intake setups regardless of intake angle or offset. This filter delivers increased airflow for better horsepower and acceleration while trapping contaminants with premium cotton gauze media.
Quick Dispatch:
Your K&N Universal Clamp-On Air Filter 2-3/4in FLG / 5-1/16in B / 3-1/2in T / 4-3/8in H 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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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.6 ★★★★★
Based on 2248 reviews
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Product Reviews
★★★★★ 5
Convenient and economical
I can't believe that I've paid $60+ for years to have my filter replaced. The money that I've spent is mind blowing.
The replacement actually takes 2 minutes! Quality is amazing and it lasts just as long (maybe longer) the dealer's and repair shops version.
Helpful tip: Do it yourself for far less.
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Reviewed in the United States on October 17, 2024
★★★★★ 5
That it fits
Just as good as the factory and over half cheaper
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Reviewed in the United States on April 30, 2026
★★★★★ 5
Very Good At Capturing Debris Of All Sizes
I have been using this for my 2015 Acura RDX for several years and each time I replace it, the old filter seems to do the job in capturing big and small debris.
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Reviewed in the United States on June 29, 2025
★★★★★ 5
Great oil
Size: 1 Quart, Style: 6-Pack, Configuration: Euro LX 0W-30
Great oil I always use for my vw atlas. I even got an oil analysis after 8k miles and was told it looks great and could be ran even longer.
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Reviewed in the United States on May 15, 2026
