K&N Universal 4 Inch Filter

SKU: RU-2510 | UPC: 024844010551

K&N RU-2510 Universal Clamp-On Air Filter

K&N RU-2510 universal clamp-on air filter delivers high-flow air filtration for racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and custom applications. Molded rubber flanges stretch up to 1/16 inch for secure fit on 3.5 inch ID intakes with 4 inch OD flange. Pre-oiled media increases 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 harmful contaminants for long engine life.
• Clean Every 5 Years: Washable filter needs service every 75,000 miles under normal highway driving, based on 15,000 miles per year average.
• Easy Installation: Pre-oiled and ready to clamp on for quick performance gains with minimal tools.
• Engineered Power: State-of-the-art media design boosts airflow for more horsepower, acceleration, and overall engine response.
• Rugged Construction: Durable premium materials and vibration-absorbing rubber flanges built to last a lifetime.

Product Notes

• Flange inside diameter 3.5 inches (89 mm), outside diameter 4 inches (102 mm), height 6 inches (152 mm).
• Washable and reusable to reduce landfill waste from disposable filters.
• Weight 1.6 pounds (0.7 kg). package dimensions 7.1 x 7.1 x 7.8 inches.

Installation Notes

• Professional installation recommended.
• Clamp-on design fits straight, angled, or offset intakes. stretch flange up to 1.5 mm if needed.
• Uses existing intake hardware. no cutting or modification required.

This Part Fits

Year	Make	Model	Submodel
Universal	Multiple	Racing Vehicles, Generators, ATVs	All
Universal	Multiple	Snowmobiles, Tractors, R/C Cars	All
Custom	All	Industrial Equipment	All

Why Choose K&N?

• Proven leader in high-flow filtration for motorsports and powersports.
• Washable filters outlast disposables with consistent airflow gains.
• Precision-engineered for exact intake match and vibration resistance.

Frequently Asked Questions

• Q: Does the RU-2510 fit custom air intakes?
  A: Yes, rubber flange fits 3.5 inch ID pipes regardless of angle or offset. stretches slightly for perfect seal.
• Q: What material is used in the filter media?
  A: Premium cotton gauze in four layers, treated for superior trapping and high airflow.
• Q: What is the warranty and cleaning interval?
  A: 1-Year Limited Warranty. clean every 75,000 miles or 5 years with K&N cleaning kit.

Shipping &amp. Handling

• Method: UPS Ground or FedEx
• Availability: In stock – ships same or next business day
• Packaging: Compact box 7.1 x 7.1 x 7.8 inches
• Weight: 1.6 pounds