Mercruiser Alpha One Sterndrive

Mercruiser Alpha One Sterndrive – Delivering reliable performance in a compact package, it's easy to see why Alpha One is considered the world's most popular sterndrive. *Single or twin installations with optional counter-rotation for petrol engines up to 300hp *Low-drag hydrodynamic torpedo creates less resistance for better performance, handling and fuel economy. *Spiral-cut steel belel gears offer guiet operation and extended durability. *Through-prop exhaust maximizes power and reduces noise.

Maximum Power Capacity 300 HP (230 kW)
Lower Unit Design Low-Drag Hydrodynamic Torpedo
Maximum Propeller Diameter 15″
Water Inlet Location Strut
Clutch Type Compact Dog Clutch with F-N-R
Available Gear Ratios 1.47, 1.62, 1.81, 2.00, 2.40:1
Counter-Rotation Optional, Except 2.40:1 Ratio
Upper Unit Gear Set Precision Shimmed, Spiral Bevel Gear
Lower Unit Gear Set Precision Shimmed, Spiral Bevel Gear
Propshaft Material Heat-Treated Stainless Steel
Standard Exhaust Outlet Through Propeller
Propeller Hub Type Flo-Torq II Hub
Recommended Lubricant Mercury High-Performance Gear Lube
Monitoring System Engine-Mounted Lube Monitor w/Audio Warning or Engine Guardian®
Corrosion Warranty 3-Year, Limited
Housing Construction Corrosion Resistant XK 360 Aluminum Low-Copper Alloy
Corrosion Protection Tri-Paint, Anodes & MerCathode® as a Kit
Anode Type Ultra-Pure Aluminum Anodes or Magnesium Anode Kit
Speedometer Pick-up Integrated Into Lower Housing
Steering System Single Cylinder Power Steering with Anti-Feedback
Steering Range 56° Range Stop to Stop
U-Joint Type Permalube® Virtually Maintenance-Free
Power Trim System Twin-Cylinder Hydraulic Featuring Power Trim XD® Kick-up Return
Typical Trim Range 5° to 15°
Trim Limit Switch Standard – Adjustable
Trailer Limit 53°
Trim Hinge Pin Design Permanently Lubricated – No Maintenance Required
Hydraulic Trim Lines Stainless Steel Braided Armor
Drive Coupler Greaseable From Inside Boat
Drive Weight 85 lbs. (38 kg)