Skip to content

ARLEN NESS KNUCKLE STAGE 1 BIG SUCKER, BLACK - '88-up XL SPORTSTER - RED PRE-OILED - 18-754

SKU 18-754
Sold out
Original price $532.95 - Original price $532.95
Original price
$532.95
$532.95 - $532.95
Current price $532.95

CONFIRM FITMENT BEFORE ORDERING

Please confirm fitment for your bike below as we do not accept returns on parts ordered incorrectly.

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

  • 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  

 

ALUMINUM BACKING PLATE FEATURES:

  • One-piece aluminum backing plate  
  • 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 unobstructed airflow directly into the engine 
  • Matte black powdercoat finish 

KNUCKLE STAGE 1 AIR CLEANER COVER

  • The Knuckle Stage 1 cover features 3d sculpted design that extents from the face of the air cleaner to the sides of the air filter pleats 
  • CNC machined from billet aluminum 
  • Black anodize finish  

PERFORMANCE AIR FILTERS: 

  • Each Big Sucker performance filter is handmade in the USA
  • Available in red pre-oiled cotton or synthetic filter media 
  • Standard red pre-oiled cotton performance filters are made from 4 layers of surgical grade cotton for optimum flow & filtration 
  • Synthetics performance filters are made from a black synthetic filter element that is wrapped in a stainless steel jacket. Synthetic filters are water resistant and do not require oil
  • All Stage 1 air filters are washable/re-usable, filter tune-up kits are available separately 

    NOTE: For '91-'22 XL models with CV carb or Delphi EFI.

    NOTE: Will Fit '88-'90 models; breather system is not applicable for these model years.

 

*FITMENT*

 91-UP XL SPORTSTER 

  • 1991-up Sportster 883 / 1200  with CV Carb or Delphi EFI 

 

Specs
PRODUCT NAME AIR FILTER KIT
MODEL BIG SUCKER
DESIGN KNUCKLE
AIR CLEANER SHAPE ROUND
COLOR/FINISH BLACK
BASE COLOR BLACK
FILTER MEDIA MATERIAL SURGICAL-GRADE COTTON
MATERIAL CNC BILLET ALUMINUM
FEATURES COMPATIBLE WITH OEM AIR CLEANER COVER
UNITS KIT
RIDING STYLE STREET

 

Fitment Guide