ePropulsion X40 Electric Outboard Motor (40 kW, 96V eSSA)

ePropulsion X40 — 40 kW, 96V Electric Outboard

The X40 is the flagship of ePropulsion's next-generation X-Series — 40 kW of zero-emission power with an industry-leading 88.2% powertrain efficiency and closed-loop liquid cooling for sustained output. A sleek, fully integrated design brings together electric steering, power trim & tilt, hydrogeneration, and smart connectivity, with a modular architecture that simplifies installation.

Why the X-Series

• Flagship efficiency — 88.2% powertrain efficiency; closed-loop liquid cooling for sustained high output.
• Compact & fully integrated — roughly 60% less space than a comparable combustion engine.
• Light for its class — 229 lb (Long shaft) / 234 lb (XL shaft).
• Hydrogeneration — recovers energy from water flow while sailing or drifting.
• Integrated electric steering (±45°) and power trim/tilt (−4° to 61°).
• Plug-and-play wiring; connected via the cloud Connectivity Service and ADAS Level-1 assisted driving.

One connected system — eSSA

The X40 runs on ePropulsion's eSSA architecture. Complete the system with one or more 96V G-Series batteries (G102-100 or G102-230), a G-Series charger or the 2 kW MPPT solar charge controller, and your choice of Smart control — Throttle, Side-Mount, Joystick, Digital Helm, or a 5″ / 10″ Display. Higher-power installs often parallel multiple G-Series batteries; our advisors will size the bank and charging with you.

You also need a 12V battery. Beyond the 96V propulsion pack, the X-Series uses a separate 12V supply for its controls, display, trim/tilt, steering, and electronics. An included 96V→12V DC-DC converter (500W) keeps it charged from the propulsion pack. The 12V battery is not included and should provide at least 120 Ah / 120 A continuous — we'll spec it with the rest of your system.

Specifications

Choosing your shaft length

The Long shaft (20 in) suits most transoms; choose the XL (25 in) for taller transoms or where extra immersion helps. The right mounting height avoids cavitation (too high) and drag (too low) — we'll confirm it with you when in doubt.

What's in the box

• X40 motor with pre-connected internal wiring
• Bus Box 250A
• 96V→12V DC-DC converter, 5 m 12V power cable, and 12V fuse
• eSSA Communication 3-way and 5-way T connectors
• eSSA Communication Cable 1m and Extension Cable 10m
• eSSA Communication Terminators (120Ω and 360Ω)
• G Battery Output Cable Kit 5m (positive & negative)

To complete the system you'll add 96V G-Series batteries, a 12V battery (≥120 Ah/120 A), a charger, and your chosen control/display.

Applications

Larger RIBs, center consoles, day boats, catamarans, and commercial-style craft moving to high-power electric propulsion.

Warranty

Covered by ePropulsion's 24-month limited warranty (from delivery to the first end customer) against defects in materials and workmanship under normal recreational use with proper installation and maintenance. Commercial or professional use is covered by your local statutory warranty instead. Blue Marine is an authorized ePropulsion dealer and will help with any claim.

Support

Professional installation is strongly recommended; many regions classify a 96V install as high-voltage work. Schedule an online consultation and our ABYC-certified advisors will size battery banks, the 12V supply, charging, and controls as one system.

Shaft options: Long (20 in, 229 lb) and XL (25 in, 234 lb).