K&N Universal Rubber Filter 4.5in Flange ID / 5.875in Base OD / 5.125in Top OD / 5in Height K&N Engineering KNNRU-4260
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K&N Universal Rubber Filter 4.5in Flange ID / 5.875in Base OD / 5.125in Top OD / 5in Height

KNNRU-4260
024844045355
Air Filters - Universal Fit
20+ Units In Stock - Ships Next Business Day
$ 78.99
$ 78.99

SKU: RU-4260 | UPC: 024844045355

K&N Universal Rubber Filter 4.5in Flange ID / 5.875in Base OD / 5.125in Top OD / 5in Height

K&N RU-4260 universal clamp-on air filter fits racing vehicles radio-controlled cars generators snowmobiles tractors and custom intakes with 4.5in flange. Molded rubber flanges absorb vibration stretch up to 1/16in for secure seal and allow easy installation on angled or offset intakes. Washable reusable design with high-flow cotton gauze media delivers more airflow for increased horsepower acceleration and engine performance.

Key Features

  • 4 Layers of Protection: Multiple layers of premium cotton gauze with tacking agent form intricate mesh to trap dirt dust and contaminants while allowing maximum airflow
  • Clean Every 5 Years: Service interval every 75000 miles under highway conditions or 5 years at 15000 miles per year reduces maintenance costs
  • Easy Installation: Pre-oiled and ready to clamp on delivers instant performance gains with minimal tools as a direct replacement upgrade
  • Engineered Power: Advanced filter media increases horsepower acceleration and throttle response for noticeable engine improvements
  • Rugged Construction: Durable premium materials and manufacturing ensure lifetime use in harsh conditions
  • Reduces Waste: Reusable design cuts down on disposable filters heading to landfills every year
  • Universal Fitment: Centered 4.5in flange ID 0.75in flange length 5in height tapers from 5.875in base OD to 5.125in top OD fits wide range of equipment

Product Notes

  • Pre-oiled for immediate use oil included for cleaning and re-oiling
  • Wash with K&N cleaner dry completely before reinstalling
  • Compact design 0.9 lb weight for easy handling and storage

Installation Notes

  • Professional installation recommended.
  • Clamp onto clean 4.5in ID intake flange no cutting or drilling required
  • Flexible rubber flange accommodates slight variations up to 1/16in for airtight seal

This Part Fits

Year Make Model Submodel
Universal Various Racing Vehicles Generators Snowmobiles Tractors ATV Custom Intakes All

Why Choose K&N?

  • Trusted filtration leader with decades of air filter innovation
  • High-flow media proven to enhance engine power and efficiency
  • Built tough for vibration-heavy applications with vibration-absorbing flanges

Frequently Asked Questions

  • Q: Will this fit my custom air intake setup?
    A: Yes fits any 4.5in ID centered flange regardless of angle or offset on racing equipment generators tractors snowmobiles and more flanges stretch slightly for exact match
  • Q: What filter media is used?
    A: Four layers of oiled cotton gauze pleated for high surface area traps contaminants protects engine while boosting airflow
  • Q: What is the warranty and service interval?
    A: Backed by 1-Year Limited Warranty cleans every 75000 miles or 5 years under normal use washable for repeated performance

Shipping &amp. Handling

  • Method: UPS Ground or FedEx
  • Availability: In stock - ships same or next business day
  • Packaging: K&N branded box 7.25 x 6.75 x 6.75 inches
  • Weight: 0.9 lbs

Request For Information

Have questions about K&N Universal Rubber Filter 4.5in Flange ID / 5.875in Base OD / 5.125in Top OD / 5in Height? Fill out the form below and we'll get back to you by the next business day.
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