boat propeller / fixed-pitch / outboard and sterndrive / 4-blade
ALPHA 4 Mercury Outboards



  • Application domain:

    for boats

  • Technology:


  • Propulsion:

    outboard and sterndrive

  • Number of blades:


  • Other characteristics:



Alpha 4

The Alpha 4 aluminum propeller provides four-blade performance and acceleration at an affordable price. The Alpha 4 is an outstanding propeller for stern drive-powered runabouts, as well as cruisers. With an Alpha 4, your boat will get on plane quicker and stay on plane at lower speeds than with a comparable three-blade propeller. The Alpha 4 is also an excellent water sports prop.

* Available in 16-, 19- and 20-pitch
* Right-hand and left-hand rotation
* Fits outboards (135hp and above), Alpha and Bravo One stern drives
* Recommended for inline 4, V6- and V8-powered stern drives.