Arlen Ness 18-754 Knuckle Stage 1 Big Sucker™, Black
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Arlen Ness 18-754
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 High Performance Filters
- One-Piece Aluminum Backing Plate
- Radius Air Inlet for Unobstructed Airflow
ALUMINUM BACKING PLATE FEATURES: TWIN CAM/SPORTSTER
- 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
TWIN CAM / SPORTSTER / EVOLUTION
BLACK BACKING PLATE (FITMENT SPECIFIC)
08-16 Touring / 16-17 Softails: 18-590
99-17 Twin Cam (Exc. FBW & 01 FI): 18-591
99-01 Fuel Injected (FI) FLT: 18-593
88-up XL Sportster: 18-594
HARDWARE KIT (FITMENT SPECIFIC)
08-16 Touring /16-17 Softails: 18-530
99-17 Twin Cam (Exc. FBW & 01 FI): 18-531
99-01 Fuel Injected (FI) FLT: 18-533
88-up XL Sportster: 18-534
AIR FILTER, RED PRE-OILED
08-16 Touring / 16-17 Softails (FBW): 18-080
99-17 Twin Cam/88-up XL: 18-098
99-01 Fuel Injected (FI) FLT: 18-097
AIR FILTER, SYNTHETIC
08-16 Touring / 16-17 Softail (FBW) : 50-083
99-17 Twin Cam/88-up XL: 50-084
99-01 Fuel Injected (FI) FLT: 50-087
KNUCKLE AIR CLEANER COVER, BLACK: 18-769
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 (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
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