Arlen Ness 18-320 Smooth Stage 1 Big Sucker™, Chrome
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Arlen Ness 18-320
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
- Smooth Stage 1 Air Cleaner Cover
- Increases Horsepower & Torque
- Patented Hidden Breather Technology
- Pre-Oiled High Performance Filters
- One-Piece Aluminum Backing Plate
- Radius Air Inlet for Unobstructed Airflow
Aluminum Backing Plate Features: Twin Cam/Sportster/Evolution Engines
- 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
- Chrome finish
Smooth Stage 1 Air Cleaner Cover
- Smooth Stage 1 cover features a clean universal design stamped with the Arlen Ness logo
- Made from high quality steel
- Chrome finish
Performance Air Filters: Twin Cam/Sportster/Evolution Engines
- Each Big Sucker performance filter is handmade in the USA
- Available in red pre-oiled cotton or Black cotton /Stainless steel jacket
- Performance filters are available in red pre-oiled cotton or Black cotton /Stainless steel jacket
- 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
- Black cotton /Stainless steel jacket performance filters are made from a 4 layer black oiled cotton filter element that is wrapped in a stainless steel jacket. Black cotton /Stainless steel jacket require oil, they are also washable/re-useable
Twin Cam / Sportster / Evolution
Chrome Backing Plate (Fitment Specific)
08-16 FLT/16-17 FBW Softail & Dyna: 18-585
99-17 Twin Cam (Exc. FBW & 01 FI): 18-586
99-01 Fuel Injected (FI) FLT: 18-588
93-99 Evolution: 18-587
88-up XL Sportster: 18-589
Hardware Kit (Fitment Specific)
08-16 FLT/16-17 FBW Softail & Dyna: 18-530
99-17 Twin Cam (Exc. FBW & 01 FI): 18-531
99-01 Fuel Injected (FI) FLT: 18-533
93-99 Evolution: 18-532
88-up XL Sportster: 18-534
Air Filter, Red Pre-Oiled
08-16 FLT/16-17 FBW Softail & Dyna: 18-080
99-17 Twin Cam/88-up XL/93-99 Evo: 18-098
99-01 Fuel Injected (FI) FLT: 18-097
Air Filter, Black cotton /Stainless steel jacket
08-16 FLT/16-17 FBW Softail & Dyna: 50-083
99-17 Twin Cam/88-up XL/93-99 Evo: 50-084
99-01 Fuel Injected (FI) FLT: 50-087
Smooth Air Cleaner Cover, Chrome: 18-760
Cover Hardware, 5/16-18 x 5/8: H-525C
99-17 Twin Cam (Except: FBW)
- 2001-2017 Twin Cam Delphi EFI (Fuel Injected)
- 1999-2006 Twin Cam CV Carb
- *NOTE: Will not fit Fly-By-Wire Models: 08-17 FLT Touring / 16-17 Softail / 16-17 Dyna FXDLS & 99-01 F.I. FLT
08-16 Touring / 16-17 Softail & FXDLS (FBW)
- 2008-2016 FLT Touring / Bagger - FLHT / FLHR / FLHX / FLTR / H-D FL Trike
- 2016-2017 Softails
- 2016-2017 Dyna FXDLS
- 2014-2015 FLSTNSE / 13-14 FXSBSE / 11-12 FLSTSE
- *NOTE: Twin Cam models equipped w/ FBW (Fly-by-Wire or Throttle-by-Wire)
91-up XL Sportster
- 1991-up Sportster 883 / 1200 with CV Carb or Delphi EFI
99-01 Fuel Injected FLT
- 1999-2001 FLT Touring Models- FLHTI / FLHRI
93-99 Evo
FITMENT DISCLAIMER
Fitment information is provided as a general reference only and is not guaranteed for any motorcycle, whether stock or modified. Compatibility may vary by year, model, and individual configuration.
Customers are responsible for verifying fitment prior to purchase. House of Harley-Davidson assumes no liability for purchases made based on incorrect or unverified fitment information.
Please contact our Parts Department with any questions before ordering at 414-282-2211