ARLEN NESS - Big Sucker™ Air Filter Kit - FACTORY COVER - IRON 48 & 72 SPORTSTER


Arlen Ness


Big Sucker air cleaners are engineered and proven to give your engine maximum airflow for more horsepower & torque. Specially designed for Sportster Iron/48/72 factory 8" air cleaner covers, these kit utilize Stage 2 sized filters to pull in the most air possible when using the factory cover


  • Designed to fit 8" Sportster™ Iron/48/72 Factory Air Cleaner Covers
  • Increases Horsepower & Torque
  • Patented Hidden Breather Technology
  • Pre-Oiled Red High Performance Filters
  • One-Piece Aluminum Backing Plate
  • Radius Air Inlet for Unobstructed Airflow



  • Made from aluminum and finished to spec by CNC machine
  • The backing plate's one-piece design features our patented hidden breather technology, each breather is o-ringed at the heads and exits at the mouth of the throttle body. This creates a virtually closed look system which eliminates the need for any external hoses or hardware
  • Smooth radius air inlet engineered to provide maximum airflow directly into the engine
  • Available finishes: Standard Raw / Chrome / Black Powdercoat



  • Each Big Sucker performance filter is handmade in the USA
  • Red pre-oiled cotton performance filters are made from 4 layers of surgical grade cotton.  Filters are washable/re-useable, filter service kits are available separately
  • Stage 2 sized filter offers the most airflow possible when using Sportster 8" factory air cleaner covers



  • Accepts 16-up Sportster Iron / 48 / 72 factory air cleaner covers

16-up Sportster Iron / 48 / 72 Models w/ Factory Air Cleaner Covers