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K&N Universal Round Clamp-On Air Filter 3in Flange ID x 6in Base OD x 4.625in Top OD x 3in Height

K&N Engineering
KNNRU-5288
In stock
Air Filters - Universal Fit
$50.99
K&N Universal Clamp-On Air Filter | 3" Flange, 6" Base, 3" Height Boost airflow & horsepower with the K&N Universal Round Clamp-On Air Filter. Features...
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$50.99

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K&N Universal Round Clamp-On Air Filter 3in Flange ID x 6in Base OD x 4.625in Top OD x 3in Height

K&N Universal Clamp-On Air Filter | 3" Flange, 6" Base, 3" Height

Boost airflow & horsepower with the K&N Universal Round Clamp-On Air Filter. Features a 3" Flange ID, 6" Base, 4.625" Top, and washable oiled cotton media.

Engineered to increase horsepower, acceleration, and overall engine efficiency, the K&N Universal Clamp-On Air Filter features a high-flow oiled cotton gauze filtration media encased in durable mesh. Designed with a flexible, molded rubber flange that absorbs vibration and ensures a tight, leak-proof seal, this low-profile tapered filter (3" Flange ID, 6" Base OD, 4.625" Top OD, and 3" Height) fits easily into tight custom engine bays. Unlike disposable paper filters, this filter is fully washable, reusable, and built to last the lifetime of your vehicle, providing exceptional protection against dirt and airborne contaminants without restricting vital engine airflow.

Best Uses

  1. Custom Intake Systems: Ideal for DIY cold air intake or short ram intake builds requiring a 3-inch inlet flange.
  2. Tight Engine Bays: Tapered 3-inch low-profile height is perfect for compact spaces in sports cars, hot rods, or tuner builds.
  3. Motorsports & Racing: High-rpm applications where maximum air velocity and rapid throttle response are required.
  4. Off-Road & ATV/UTV Conversions: Upgrade stock airboxes on custom off-road buggies or utility vehicles.
  5. Carbureted or Turbocharged Upgrades: Direct clamp-on connection for custom turbo inlet pipes or air cleaners.

Features

  1. High-Flow Oiled Cotton Media: Multi-layered pleated cotton treats air with minimal restriction while capturing microscopic dirt.
  2. Pliable Molded Flange: Ultra-strong pliable rubber flange absorbs engine vibration and stretches up to 1/16" to fit in-between sizes.
  3. Precision Tapered Dimensions: Features a 3" Flange ID, 6" Base OD, 4.625" Top OD, and a compact 3" Filter Height.
  4. Heavy-Duty Clamp Included: Comes pre-equipped with a high-grade worm-gear hose clamp for fast, secure installation.
  5. Washable & Reusable: Designed to be easily cleaned and re-oiled with a K&N Recharger kit for long-term service life.

Benefits

  1. Increased Horsepower & Acceleration: Delivers up to 50% more airflow compared to restrictive disposable paper filters.
  2. Cost-Effective Lifetime Design: Saves money over time by eliminating the need to continuously buy replacement filters.
  3. Engine Protection: State-of-the-art filtration media prevents damaging dirt and grit from entering engine cylinders.
  4. Eco-Friendly: Reduces landfill waste by replacing hundreds of single-use disposable air filters over the vehicle's lifespan.
  5. Easy Clamp-On Installation: Installs in minutes using simple hand tools—no custom welding or special hardware needed.
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