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K&N Universal Tapered Filter 3.125in Flange ID x 5in Base OD x 3.5in Top OD x 6in Height K&N Engineering KNNRU-3250
K&N Universal Tapered Filter 3.125in Flange ID x 5in Base OD x 3.5in Top OD x 6in Height K&N Engineering KNNRU-3250
K&N Universal Tapered Filter 3.125in Flange ID x 5in Base OD x 3.5in Top OD x 6in Height K&N Engineering KNNRU-3250
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K&N Universal Tapered Filter 3.125in Flange ID x 5in Base OD x 3.5in Top OD x 6in Height

KNNRU-3250
024844373830
Air Filters - Universal Fit
20+ Units In Stock - Ships Next Business Day
$ 72.00 $ 63.19
$ 63.19

SKU: RU-3250 | UPC: 024844373830

K&N Universal Tapered Filter 3.125in Flange ID x 5in Base OD x 3.5in Top OD x 6in Height

K&N RU-3250 universal clamp-on tapered air filter fits racing vehicles radio-controlled cars generators snowmobiles tractors and more with 3.125in flange ID 5in base OD 3.5in top OD and 6in height. Molded rubber flanges absorb vibration stretch up to 1/16in for secure fit and handle any intake angle or offset. Pre-oiled cotton gauze media increases airflow for more horsepower acceleration and engine performance while trapping contaminants.

Key Features

  • 4 Layers of Protection: Multiple layers of premium cotton gauze with tacking agent form intricate mesh to block trap harmful contaminants
  • Clean Once Every 5 Years: Needs cleaning every 75000 miles under normal highway driving or 5 years at 15000 miles per year
  • Easy Installation: Pre-oiled ready-to-use clamp-on design delivers quick performance gains as one of the simplest vehicle upgrades
  • Engineered Power: State-of-the-art media boosts horsepower acceleration and overall engine performance
  • Washable Reusable: Lifetime durability reduces landfill waste from over 200 million disposable filters yearly
  • Rugged Construction: Durable premium materials and advanced methods ensure it lasts a lifetime
  • Universal Fitment: Works on variety of equipment regardless of intake angle or offset diameter

Product Notes

  • Flanges stretch up to 1/16in (1.5mm) for between sizes
  • Washable reusable clean with K&N cleaning kit for repeated use
  • Weight 0.9 lb (0.4 kg) package dimensions 7.25in x 7.13in x 7.75in

Installation Notes

  • Professional installation recommended.
  • Clamp-on design uses existing hose clamp or purchase separately for secure attachment
  • Pre-oiled flanges centered for straight or tapered intakes

This Part Fits

Year Make Model Submodel
Universal fitment for racing vehicles radio-controlled cars generators snowmobiles tractors and wide variety of equipment

Why Choose K&N?

  • Proven leader in high-flow air filtration for decades
  • Washable reusable filters outlast disposables many times over
  • Precision-engineered for maximum airflow and protection

Frequently Asked Questions

  • Q: Will this fit my specific intake setup?
    A: Yes universal tapered design with flexible rubber flange fits most regardless of angle offset or diameter up to 1/16in stretch
  • Q: What material is used in the filter media?
    A: Premium cotton gauze in 4 layers treated with tacking agent for superior contaminant trapping and airflow
  • Q: What is the warranty and maintenance?
    A: 1-Year Limited Warranty wash every 75000 miles or 5 years reusable for lifetime with proper care

Shipping &amp. Handling

  • Method: Standard ground
  • Availability: In stock - ships same or next business day
  • Packaging: Protective box 7.25in x 7.13in x 7.75in
  • Weight: 0.9 lb
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