Arlen Ness® Stage I Big Sucker™ Air Cleaner Cover in Knuckle Black 18754

Fits 91+ Harley XL with CV Carb or Delphi EFI. See below for full fitment details.

Big Sucker Stage 1 air cleaners are engineered and proven to give your engine maximum airflow for more horsepower & torque. The patented hidden breather backing plate is o-ringed at the heads and exits inside the mouth of the throttle body for a virtually closed loop system, eliminating the need for any external hoses or hardware.

Features:

• Knuckle Stage 1 Air Cleaner Cover 
• Increases Horsepower & Torque 
• Patented Hidden Breather Technology 
• Pre-Oiled & Synthetic High Performance Filters
• One-Piece Aluminum Backing Plate 
• Radius Air Inlet for Unobstructed Airflow  

Finish:

• Black

Fitment:

• 2018-2021 Harley-Davidson Iron 1200 XLNS
• 2018-2019 Harley-Davidson Sportster Forty-Eight Special XLXS
• 2016-2020 Harley-Davidson 1200 Roadster XLCX
• 2014-2017 Harley-Davidson SuperLow 1200 XLT
• 2012-2016 Harley-Davidson Sportster Seventy-Two XLV
• 2011-2019 Harley-Davidson 883 SuperLow XLL
• 2011-2019 Harley-Davidson 1200 Custom EFI XLC
• 2010-2021 Harley-Davidson Sportster Forty-Eight XLX
• 2009-2021 Harley-Davidson Iron 883 XLN
• 2009-2012 Harley-Davidson Sportster 1200 XR
• 2009-2012 Harley-Davidson Sportster 1200 X XR
• 2007-2012 Harley-Davidson 1200 Nightster XLN
• 2007-2011 Harley-Davidson 1200 Low EFI XLL
• 2007-2010 Harley-Davidson 1200 Custom EFI XLC
• 2007-2010 Harley-Davidson 883 Low EFI XLL
• 2007-2009 Harley-Davidson 883 EFI XL
• 2007-2009 Harley-Davidson 883 Custom EFI XLC
• 2007-2008 Harley-Davidson 1200 Roadster EFI XLR
• 2007 Harley-Davidson Sportster 1200 XL 50
• 2007 Harley-Davidson 883 Roadster EFI XLR
• 2006 Harley-Davidson 1200 Low XLL
• 2006 Harley-Davidson 1200 Roadster EFI XLR
• 2006 Harley-Davidson 1200 Low EFI XLL
• 2006 Harley-Davidson 883 Low EFI XLL
• 2006 Harley-Davidson 883 Roadster EFI XLR
• 2005-2007 Harley-Davidson 883 Roadster XLR
• 2005-2006 Harley-Davidson 883 Low XLL
• 2005 Harley-Davidson 883 Roadster EFI XLR
• 2004-2006 Harley-Davidson 1200 Roadster XLR
• 2004-2006 Harley-Davidson 883 XL
• 2004-2006 Harley-Davidson 1200 Custom XLC
• 2004-2006 Harley-Davidson 883 Custom XLC
• 2004-2006 Harley-Davidson 883 Custom EFI XLC
• 2004-2006 Harley-Davidson 1200 Custom EFI XLC
• 2002-2003, 2011-2017 Harley-Davidson 1200 XLCP
• 2002-2003 Harley-Davidson 883 Roadster EFI XLR
• 2002-2003 Harley-Davidson 1200 Custom EFI XLC
• 2002-2003 Harley-Davidson 883 Roadster XLR
• 1999-2003 Harley-Davidson 883 Custom EFI XLC
• 1998-2003 Harley-Davidson 883 Custom XLC
• 1997-2003 Harley-Davidson 883 Hugger XLH
• 1997-2003 Harley-Davidson Sportster 883 XLH
• 1997-2003 Harley-Davidson 1200 Custom XLC
• 1996-2003 Harley-Davidson 1200 Sport XLS
• 1996 Harley-Davidson 1200 Custom XLC
• 1992-1996 Harley-Davidson 883 Hugger XLH
• 1992-1996 Harley-Davidson Sportster 883 XLH
• 1992-1995 Harley-Davidson 883 Deluxe XLH
• 1991-2003 Harley-Davidson Sportster 1200 XLH
• 1991 Harley-Davidson 883 Hugger XLH
• 1991 Harley-Davidson 883 Deluxe XLH
• 1991 Harley-Davidson Sportster 883 XLH
• 1988-1990 Harley-Davidson Sportster 883 XLH
• 1988-1990 Harley-Davidson 883 Hugger XLH
• 1988-1990 Harley-Davidson Sportster 1200 XLH
• 1988-1990 Harley-Davidson 883 Deluxe XLH
• 1988 Harley-Davidson Sportster 1100 XLH