K&N Filter 3 inch Flange 5 inch OD 6 1/2 inch Height K&N Engineering KNNRU-2820
K&N Filter 3 inch Flange 5 inch OD 6 1/2 inch Height K&N Engineering KNNRU-2820
K&N Filter 3 inch Flange 5 inch OD 6 1/2 inch Height K&N Engineering KNNRU-2820
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K&N Filter 3 inch Flange 5 inch OD 6 1/2 inch Height

KNNRU-2820
024844010803
Air Filters - Universal Fit
20+ Units In Stock - Ships Next Business Day
$ 68.99
$ 68.99

SKU: RU-2820 | UPC: 024844010803

K&N RU-2820 Universal Clamp-On Air Filter 3 Inch Flange 5 Inch OD 6 1/2 Inch Height

The K&N RU-2820 delivers high-flow air filtration for racing vehicles, radio-controlled cars, generators, snowmobiles, tractors and custom intakes. This clamp-on filter with 3-inch centered flange inside diameter, 5-inch top outside diameter and 6.5-inch height installs easily on varied intake configurations. It traps dirt with four layers of cotton gauze while increasing airflow for more horsepower and quicker acceleration.

Key Features

  • 4 Layers of Protection: Multiple layers of premium cotton gauze with tacking agent form a mesh that blocks and traps harmful contaminants from reaching the engine.
  • Clean Once Every 5 Years: Requires cleaning only every 75,000 miles under normal highway driving or 5 years at 15,000 miles annually.
  • Easy Installation: Pre-oiled and ready to use for fast clamp-on setup and immediate performance gains with minimal cost.
  • Engineered Power: Advanced filter media boosts horsepower, acceleration and engine response through superior airflow.
  • Rugged Construction: Durable premium materials and molded rubber flanges absorb vibration, stretch up to 1/16 inch and last a lifetime.

Product Notes

  • Ultra-strong pliable rubber flanges ensure secure vibration-free attachment to 3-inch intakes.
  • Washable and reusable design reduces landfill waste from disposable filters.
  • Product weight 1.6 lb with shipping box dimensions 8.25 x 8.19 x 7.19 inches.

Installation Notes

  • Professional installation recommended.
  • Clamp directly onto 3-inch inside diameter air intake pipes.
  • Flanges stretch up to 1/16 inch to accommodate slight size variations. no additional hardware needed.

This Part Fits

Year Make Model Submodel
Universal Various Racing Vehicles/Generators/Snowmobiles/Tractors/ATVs Custom Clamp-On Intakes

Why Choose K&N?

  • Over 50 years designing air filters for motorsports and powersports.
  • High-flow media proven to add power across thousands of applications.
  • Made in USA with precision manufacturing for reliable long-term performance.

Frequently Asked Questions

  • Q: Does the RU-2820 fit specific intake sizes?
    A: Designed for 3-inch inside diameter flanges with centered mounting. stretches up to 1/16 inch for secure fit on custom or offset intakes regardless of angle.
  • Q: What materials are used in construction?
    A: Premium cotton gauze media layers, molded rubber flanges and rugged components built to withstand vibration and harsh conditions.
  • Q: What warranty coverage applies?
    A: Backed by 1-Year Limited Warranty against defects in materials or workmanship.

Shipping & Handling

  • Method: Ground shipping via UPS or FedEx
  • Availability: In stock - ships same or next business day
  • Packaging: Secure cardboard box 8.25 x 8.19 x 7.19 inches
  • Weight: 1.6 lb

Request For Information

Have questions about K&N Filter 3 inch Flange 5 inch OD 6 1/2 inch Height? Fill out the form below and we'll get back to you by the next business day.
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