Knuckle Stage 1 Big Sucker™ For Milwaukee-Eight®, Black
The new Big Sucker™ Stage 1 performance intake for Milwaukee-Eight® (M8) engines adds new features to the original industry leading air cleaner. The new patent-pending hidden breather system is o-ringed at the heads, passes through the backing plate and exits inside the mouth of the throttle body through proprietary shooter tubes
- Knuckle Stage 1 Cover
- Increases Horsepower & Torque
- Eliminates Oil Blow-bye Issues Associated with M8 Engines
- Black Pre-Oiled High Performance Filter
- Patent-Pending Hidden Breather Technology
- Patent-Pending Oil Catch / Reservoir
- One-Piece Aluminum Backing Plate
- Aluminum Filter Top Plate
California Air Resource Board: Executive Order D-639-12_R-01
California Prop 65:
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Aluminum Backing Plate For Milwaukee-Eight™ (M8) Engines
- New patent-pending hidden breather backing plate technology. Each breather is o-ringed at the heads, passes through the backing plate and exits inside the mouth of the throttle body through specially formed shooter tubes
- Shooter tubes are specially formed to flow with the radius air inlet to provide efficient engine breathing without adversely effecting airflow
- Helps to eliminate oil blow-bye issues associated with performance intakes on M8 engines
- Integrated patent-pending oil catch stops any excess breather oil from reaching the air filter. Oil catch is serviceable, simply bolt-on and off when your ready to wash/service the air filter
- Formed aluminum filter plate design with integrated mounting studs eliminates any internal mounting hardware
- Outer filter lip covers the urethane on the base of the air filter for a clean look that leaves only filter media exposed
- Gloss Black Powdercoat Finish
Performance Air Filters: Milwaukee-Eight (M8) Engines
- Black pre-oiled cotton performance air filter
- Engineered for optimum air flow and filtration
- Perimeter flow design brings in air from all sides of the filter while filtering out all harmful debris/dust
- Each filter is washable and re-useable, filter service kits are available
Knuckle Stage 1 Outer Cover
- The Stage 1 Knuckle air cleaner cover features sculpted 3D billet machining that was designed to flow with the style of the M8 engine
- CNC machined from forged billet aluminum
- Black anodize finish
17-2023 M8 MODELS (EXCEPT: 2023 FLHXSE & FLTRXSE)
- 2017-up FLT Touring / Bagger Models: FLHT / FLHR / FLHX / FLTRX / FLTRU / H-D FL Trike
- 2018-up Softail™ Models
M8
Backing Plate Assembly: 18-394B
Backing Plate, Filter Top Plate, Stainless Hardware ¼-20 x 1-½ (2)
Breather & Oil Catch
Oil Catch: 18-392-3
Oil Catch Gasket: 18-392-3
Oil Catch Hardware, 8-32 x ¾: H-619S (2)
Shooter Tubes: BT-001
Hardware Kit: HK-18458
Breather Bolts: 18-457-4C (2)
Throttle Body Gasket: 18-457-3
Breather Bolt O-Rings: H-024-4 (4)
Throttle Body Logo Plate: 18-203-8
Logo Plate Hardware, M6 x 1.0: HM-122B (2)
Knuckle Air Cleaner Cover, Black: 18-769
Cover Hardware, 5/16-18 x 5/8: H-525C
Pre-Oiled Air Filter, Black: 18-090
Warning:
