Price starting from $53,900

Bellmarine Sternmaster

The Bellmarine SternMaster is a powerful stern drive system that comes complete with Mercury Alpha One with 2:1 reduction and stainless steel motor support brackets.

All motors are Permanent Magnet type, AC, high efficiency, saltwater resistant and rated at IP65. The air-cooled version is suitable for light & medium duty applications, whilst the liquid cooled version is recommended for heavy duty & commercial applications.

Bellmarine motors have a nominal (continuous) and intermittent (1 minute duration) rating.

All Bellmarine motors can be supplied as complete plug & play system.

reduction ratio: i=2      propeller RPM = motor RPM/i

Complete system including:

  • motor with adjustable brackets and rubber mounts
  • motor with integrated thrust bearing
  • stern drive Mercury “Alpha One”
  • elastic coupling between motor and transmission
  • vector control inverter IP65
  • NMEA2000 compatible (for connection to third party display)
  • main battery switch and main fuse
  • controller with integrated DC/DC converter for 12Vdc
  • 5m cable set for display, throttle and key switch
  • air cooled or liquid cooling system
  • display unit of choice
  • throttle lever (TFC)
  • quick install / easy connect / plug & play
  • installation & user manual

Note: propeller not included


Motor kW S3 kW V RPM
SternMaster 20A 15 20 96 3000
SternMaster 25A 20 25 144 3000


Motor kW S3 kW V RPM
SternMaster 25W 20 25 96 3000
SternMaster 35W 30 35 144 3000
SternMaster 45W 35 45 288 3000
SternMaster 65W 50 65 288 3000
SternMaster 97W 75 97 288 3000


To quote you on a complete electric inboard motor system download our questionnaire with the button below.

Download our questionnaire

< Back to Bellmarine Electric Inboard Motors