HARMO ELECTRIC OUTBOARD SYSTEM
You can hear a fish jump from a mile away as you glide almost silently on a glass-water lake. That’s just part of the beauty of Yamaha’s new HARMO® electric propulsion system. Pairing performance with a small carbon footprint, this lithium-ion-powered, fully electric 3.7kW outboard produces the equivalent of 9.9 horsepower, and can be used in single and twin applications. The industry’s first use of rim drive on an outboard motor, HARMO provides quiet, palpable thrust and more sustainable outboard power. You can rest easy knowing you’re treading lighter on the boating waters you love.
Meet the Lineup
9.9 HP
Our 3.7kW HARMO electric outboard system provides 227 pounds of static thrust (9.9 hp) and can be used in single and twin configurations. Its integrated digital electric steering, Helm Master compatibility (in twins), and 140-degree steering angle deliver crisp response and precise steering. It can maneuver boats up to 32 feet in length in most conditions and is perfect for horsepower- or internal combustion-restricted waterways.
- Available in 20” and 25” shaft lengths
- As light as 128 pounds (20” shaft)
- Standard conventional mounting bracket
- Automatic tilt up or down during operation
- Compatible with Helm Master EX in twins
- Available in signature Yamaha gray
9.9 HP
| Motor Power | 3.7 kW |
|---|---|
| Static Thrust | 102 kgf / 225 lbf |
| Comparable Thrust | 9.9 horsepower (gasoline outboard) |
| Configuration | Single or twin |
| Control System | Helm Master EX, including joystick, remote control, and Digital Electric Steering (DES) |
| Steering Angle (max) | 140 degrees |
| Nominal Voltage | 48vdc |
| Run Time | Depends on battery type, size, configuration, and throttle setting |
| Weight (motor unit) | 20 in.: 128 lbs | 25 in.: 141 lbs |
Gallery
SUSTAINABLE BOATING
WITH YAMAHA
Yamaha has committed to achieving carbon neutrality in our product line by 2050. Our HARMO electric propulsion system is an exciting first step toward more sustainable boating.
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