Electric Motor Selection Guide

Elco’s electric boat motors are compact, reliable and more powerful than ever. Today’s advanced batteries also pack more power per pound, including new solid-state batteries that are half the weight and a third smaller than traditional wet-electrolyte lithium batteries. Going electric also brings practical benefits like zero exhaust emissions, intuitive operation, and greatly reduced noise, vibration and maintenance, so right now is a great time to switch to clean, green electric propulsion. Elco’s motors are engineered for straightforward installation, and NMEA 2000 compatibility ensures flexible integration to boats, batteries and systems.

Why Choose an Elco Electric Inboard Motor System?

Elco’s electric inboard motors increase your boating enjoyment. Our motors eliminate exhaust fumes as well as the smell, mess and safety concerns from spilled or leaking fuel. Highly efficient brushless PMAC motors often provide more power per pound than gas or diesel engines they replace, and with just one moving part, motors dont require scheduled service for thousands of operating hours. Our direct-drive system provides forward, neutral and reverse shifting within our electric motor, eliminating marine transmissions. Elcos quiet, smooth operation — silent in neutral, whisper quiet at slow speed, and typically less than half as loud as combustion engines — facilitates conversation underway and enhances communication while docking.

EP-20

Elco’s electric inboards are compact, reliable and efficient. Even with batteries, our EP-20, for example, often weighs less and utilizes less space than gas or diesel engines. Elco’s brushless PMAC motors maximize efficiency and minimize maintenance, while our direct-drive system eliminates marine transmissions and provides smooth, seamless shifting between forward, neutral and reverse.

SELECT A MODEL TO LEARN MORE

EP-6

MSRP: $5,845
Voltage: 24 Volts
Suggested Battery (Ah): 90Ah – 120Ah
Comparable HP: 6HP

For boats smaller than 20 feet, Elco’s EP-6 replaces gas or diesel engines up to about 6 horsepower, yet it is only two-thirds the size and less than half the weight of a typical 8D lead-acid battery. Elco’s patented airflow cooling system eliminates seawater plumbing and exhaust systems, while our direct-drive control system entirely replaces marine transmissions. 24-volt operation maximizes battery options and minimizes size and weight. Elco’s motors are engineered for straightforward installation, Elco’s DASH app seamlessly connect to navigation displays as well as wireless and wearable screens, plus NMEA 2000 compatibility ensures flexible integration to boats, batteries and systems.

Shop EP-6
BATTERY VOLTAGE (NOMINAL)24 vdc
BATTERY VOLTAGE (OPERATING RANGE)20-32 V
BATTERY CURRENT (MAXIMUM CONTINUOUS)125 amps
SUGGESTED BATTERY CAPACITY90-120 Ah
KILOWATTS (CONTINUOUS)3.0kW
MAXIMUM RPM1000 RPM
SUGGESTED FOR BOAT LENGTHS up to 25’
SUGGESTED FOR BOAT WEIGHTS (LBS)3,000lbs
COMPARABLE HORSEPOWER6HP
HP REPLACEMENT RANGE2-8HP
INBOARD WEIGHT68lbs
OVERALL DIMENSIONS (LENGTH, WIDTH, HEIGHT)14" x 13" x 11"
MSRP$5,845

EP-12

MSRP: $6,445
Voltage: 48 Volts
Suggested Battery (Ah): 90Ah – 165Ah
Comparable HP: 12HP

For vessels up to 26 feet and weighing less than 5,000pounds, Elcos EP-12 replaces gas or diesel engines up to about 12 hp, yet it is only about two-thirds the size and less than half the weight of a typical 8D lead-acid battery. Elco’s patented airflow cooling system eliminates seawater plumbing and exhaust systems, while our direct-drive control system entirely replaces marine transmissions. 48-volt operation optimizes performance and efficiency while minimizing battery size and weight. Elco’s motors are engineered for straightforward installation, Elco’s DASH app seamlessly connect to navigation displays as well as wireless and wearable screens, plus NMEA 2000 compatibility ensures flexible integration to boats, batteries and systems.

Shop EP-12
BATTERY VOLTAGE (NOMINAL)48 vdc
BATTERY VOLTAGE (OPERATING RANGE)41-64 V
BATTERY CURRENT (MAXIMUM CONTINUOUS)135 amps
SUGGESTED BATTERY CAPACITY90-165 Ah
KILOWATTS (CONTINUOUS)6.0kW
MAXIMUM RPM1500 RPM
SUGGESTED FOR BOAT LENGTHS 20’-35’
SUGGESTED FOR BOAT WEIGHTS (LBS)5,000lbs
COMPARABLE HORSEPOWER12HP
HP REPLACEMENT RANGE8-18HP
INBOARD WEIGHT70lbs
OVERALL DIMENSIONS (LENGTH, WIDTH, HEIGHT)14" x 13" x 11"
MSRP$6,445

EP-20

MSRP: $6,845
Voltage: 48 Volts
Suggested Battery (Ah): 130Ah – 225Ah
Comparable HP: 20HP

For boats up to 31 feet in length and 11,000 pounds, Elco’s EP-20 replaces combustion engines in the 20-horsepower range. Even when accounting for batteries that provide many hours of runtime, the EP-20 electric inboard motor weighs less and utilizes less space than similar gas or diesel engines. Elco’s patented airflow cooling system eliminates seawater plumbing and exhaust systems, while our direct-drive control system entirely replaces marine transmissions. 48-volt operation optimizes performance and efficiency while minimizing battery size and weight.

Elco’s motors are engineered for straightforward installation, Elco’s DASH app seamlessly connect to navigation displays as well as wireless and wearable screens, plus NMEA 2000 compatibility ensures flexible integration to boats, batteries and systems.

Shop EP-20
BATTERY VOLTAGE (NOMINAL)48 vdc
BATTERY VOLTAGE (OPERATING RANGE)41-64 V
BATTERY CURRENT (MAXIMUM CONTINUOUS)175 amps
SUGGESTED BATTERY CAPACITY130-225 Ah
KILOWATTS (CONTINUOUS)8.4kW
MAXIMUM RPM1800 RPM
SUGGESTED FOR BOAT LENGTHS 25’- 40’
SUGGESTED FOR BOAT WEIGHTS (LBS)7,500lbs
COMPARABLE HORSEPOWER20HP
HP REPLACEMENT RANGE15-25HP
INBOARD WEIGHT72lbs
OVERALL DIMENSIONS (LENGTH, WIDTH, HEIGHT)14" x 13" x 11"
MSRP$6,845

EP-25

MSRP: $7,995
Voltage: 72 Volts
Suggested Battery (Ah): 130Ah – 225Ah
Comparable HP: 25HP

By increasing to 72-volt operation, Elcos EP-25 adds extra power to navigate challenging inlets or dock heavy boats in difficult conditions, yet even with increased battery voltage, the EP-25 still maintains the compact overall footprint and patented airflow cooling system of our lower-horsepower inboard options. Elco’s motors are engineered for straightforward installation, Elco’s DASH app seamlessly connect to navigation displays as well as wireless and wearable screens, plus NMEA 2000 compatibility ensures flexible integration to boats, batteries and systems.

Shop EP-25
BATTERY VOLTAGE (NOMINAL)72 vdc
BATTERY VOLTAGE (OPERATING RANGE)60-108 V
BATTERY CURRENT (MAXIMUM CONTINUOUS)175 amps
SUGGESTED BATTERY CAPACITY130-225Ah
KILOWATTS (CONTINUOUS)12.6kW
MAXIMUM RPM3000 RPM
SUGGESTED FOR BOAT LENGTHS 25’- 45’
SUGGESTED FOR BOAT WEIGHTS (LBS)13,000lbs
COMPARABLE HORSEPOWER25HP
HP REPLACEMENT RANGE20-235 HP
INBOARD WEIGHT75lbs
OVERALL DIMENSIONS (LENGTH, WIDTH, HEIGHT)14" x 13" x 11"
MSRP$7,995
Electric Inboard Boat Motor | EP40

EP-40

MSRP: $13,995
Voltage: 108 Volts
Suggested Battery (Ah): 165Ah – 225Ah
Comparable HP: 40HP

For boats up to 42 feet in length and 22,000 pounds, Elcos re-engineered EP-40 electric inboard motor is about one fifth the size of a 40 hp diesel it replaces. Even when accounting for batteries that provide hours of runtime, the EP-40 weighs less and utilizes less space than similar gas or diesel engines. Elco’s patented airflow cooling system eliminates seawater plumbing and exhaust systems, while our direct-drive control system entirely replaces marine transmissions. 96-volt operation optimizes performance and efficiency while minimizing battery size and weight. Elco’s motors are engineered for straightforward installation, Elco’s DASH app seamlessly connect to navigation displays as well as wireless and wearable screens, plus NMEA 2000 compatibility ensures flexible integration to boats, batteries and systems.

Shop EP-40
BATTERY VOLTAGE (NOMINAL)108 vdc
BATTERY VOLTAGE (OPERATING RANGE)90-115 V
BATTERY CURRENT (MAXIMUM CONTINUOUS)200 amps
SUGGESTED BATTERY CAPACITY165-225Ah
KILOWATTS (CONTINUOUS)17.0kW
MAXIMUM RPM1800 RPM
SUGGESTED FOR BOAT LENGTHS 32’- 48’
SUGGESTED FOR BOAT WEIGHTS (LBS)20,000lbs
COMPARABLE HORSEPOWER40HP
HP REPLACEMENT RANGE25-45HP
INBOARD WEIGHT205lbs
OVERALL DIMENSIONS (LENGTH, WIDTH, HEIGHT)20”x17”x15”
MSRP$13,995
Electric Inboard Boat Motor | EP40

EP-70

MSRP: $15,995
Voltage: 108 Volts
Suggested Battery (Ah): 220Ah – 275Ah
Comparable HP: 70HP

Elco’s EP-70 electric inboard motor replaces gas and diesel engines up to about 70 hp with optimum efficiency and ample power, as well as the sustainability of electric propulsion. Elcos electric inboard motors are engineered using advanced technologies for reliable performance. A water-resistant cast aluminum housing contains all the electronics, AC motor, and safety devices to ensure reliability for years of environmentally responsible boating. Elco’s motors are engineered for straightforward installation, Elco’s DASH app seamlessly connect to navigation displays as well as wireless and wearable screens, plus NMEA 2000 compatibility ensures flexible integration to boats, batteries and systems.

Shop EP-70
BATTERY VOLTAGE (NOMINAL)108 vdc
BATTERY VOLTAGE (OPERATING RANGE)77-120 V
BATTERY CURRENT (MAXIMUM CONTINUOUS)275 amps
SUGGESTED BATTERY CAPACITY220-275 Ah
KILOWATTS (CONTINUOUS)29.7kW
MAXIMUM RPM1500 RPM
SUGGESTED FOR BOAT LENGTHS 38’-56’
SUGGESTED FOR BOAT WEIGHTS (LBS)29,500lbs
COMPARABLE HORSEPOWER70HP
HP REPLACEMENT RANGE45-85HP
INBOARD WEIGHT650lbs
OVERALL DIMENSIONS (LENGTH, WIDTH, HEIGHT)35”x19”x20”
MSRP$15,995
Electric Inboard Boat Motor | EP100

EP-100

MSRP: $20,995
Voltage: 144 Volts
Suggested Battery (Ah): 220Ah – 300Ah
Comparable HP: 100HP

Elco’s EP-100 electric inboard motor combines the power of a 100 hp gas or diesel engines with optimum efficiency and ample power, and the sustainability of electric propulsion. Elcos electric inboard motors are engineered using advanced technologies for reliable performance. Its water-resistant aluminum housing contains all the electronics, AC motor, and safety devices to ensure reliability for years of environmentally responsible boating.  Elco’s motors are engineered for straightforward installation, Elco’s DASH app seamlessly connect to navigation displays as well as wireless and wearable screens, plus NMEA 2000 compatibility ensures flexible integration to boats, batteries and systems.

Shop EP-100
BATTERY VOLTAGE (NOMINAL)144 vdc
BATTERY VOLTAGE (OPERATING RANGE)70-170 V
BATTERY CURRENT (MAXIMUM CONTINUOUS)295 amps
SUGGESTED BATTERY CAPACITY220 -300Ah
KILOWATTS (CONTINUOUS)42.5kW
MAXIMUM RPM1500 RPM
SUGGESTED FOR BOAT LENGTHS 50’-85’
SUGGESTED FOR BOAT WEIGHTS (LBS)50,000lbs
COMPARABLE HORSEPOWER100HP
HP REPLACEMENT RANGE75-125HP
INBOARD WEIGHT740lbs
OVERALL DIMENSIONS (LENGTH, WIDTH, HEIGHT)35”x19”x20”
MSRP$20,995

EP-200

MSRP: $59,995
Voltage: 144 Volts
Suggested Battery (Ah): 590Ah
Comparable HP: 150-250HP

Discover the strength of Elcos EP-200 electric inboard motor that provides ample power, optimum efficiency and unsurpassed reliability to boats up to 120 feet in length. Quiet operation ensures sight-seeing vessel, water taxi or private boat guests enjoy their surroundings while clean, green electric propulsion significantly reduces environmental impact. Elco’s motors are engineered for straightforward installation, Elco’s DASH app seamlessly connect to navigation displays as well as wireless and wearable screens, plus NMEA 2000 compatibility ensures flexible integration to boats, batteries and systems.

Shop EP-200
BATTERY VOLTAGE (NOMINAL)144 vdc
BATTERY VOLTAGE (OPERATING RANGE)70-170 V
BATTERY CURRENT (MAXIMUM CONTINUOUS)598 amps
SUGGESTED BATTERY CAPACITY400-600Ah
KILOWATTS (CONTINUOUS)86.1kW
MAXIMUM RPM1500 RPM
SUGGESTED FOR BOAT LENGTHS 60’-120’
SUGGESTED FOR BOAT WEIGHTS (LBS)125,000lbs
COMPARABLE HORSEPOWER200HP
HP REPLACEMENT RANGE150-250HP
INBOARD WEIGHT1,780lbs
OVERALL DIMENSIONS (LENGTH, WIDTH, HEIGHT)84”x36”x36”
MSRP$59,995

EP-250

MSRP: $79,995
Voltage: 350 Volts
Suggested Battery (Ah): 210-600Ah
Comparable HP: 250HP

Elco’s revolutionary award-winning EP-250 electric inboard motor replaces gas or diesel power from 100 to 250 horsepower, yet it fits within a 2-foot cube and weighs just 205 pounds. Elco’s battery-flexible engineering leverages industry leading technology, including new solid-state batteries that are half the weight and a third smaller than traditional wet-electrolyte lithium batteries. The EP-250 brings exhilarating performance to inboard planing powerboats and robust power to displacement and semi-displacement boats in an incredibly compact, lightweight configuration. Integrated reduction gearing facilitates larger, more efficient propellers, yet still results in just four moving parts with no transmission and no exhaust system. Elco’s motors are engineered for straightforward installation, Elco’s DASH app seamlessly connect to navigation displays as well as wireless and wearable screens, plus NMEA 2000 compatibility ensures flexible integration to boats, batteries and systems.

Shop EP-250
BATTERY VOLTAGE (NOMINAL)350 vdc
BATTERY VOLTAGE (OPERATING RANGE)218-480 V
BATTERY CURRENT (MAXIMUM CONTINUOUS)300 amps
SUGGESTED BATTERY CAPACITY210-600Ah
KILOWATTS (CONTINUOUS)105.0kW
MAXIMUM RPM6000 RPM
SUGGESTED FOR BOAT LENGTHS 20’-120’
SUGGESTED FOR BOAT WEIGHTS (LBS)140,000lbs
COMPARABLE HORSEPOWER250HP
HP REPLACEMENT RANGE100-250HP
INBOARD WEIGHT205 lbs
OVERALL DIMENSIONS (LENGTH, WIDTH, HEIGHT)23”x18”x15”
MSRP$79,995

How To Select Your Electric Propulsion System

ELCO ELECTRIC INBOARD MOTORS

When you’re ready to shop, visit our SHOP section to choose your electric motor, batteries, and accessories. Simply follow the steps to select what you need. Below is our selection to help you complete your electric propulsion system.

THROTTLE AND SHAFT OPTIONS:

Choose between a long or short shaft and a Tiller or Remote Throttle.

Livorsi Side Mount Throttle $450 ALL ELCO INBOARDS
Livorsi Top Mount Throttle $650 ALL ELCO INBOARDS
Livorsi Dual Top Mount Throttle $1,300 ALL ELCO INBOARDS

BATTERIES AND CHARGER:

If you do not have batteries and a charger, you will need to select either AGM or Lithium batteries with the matching charger type. If you already have batteries but need a charger, select the applicable charger based on the type of battery you have.

BATTERY CONNECTION KIT:

Pre-assembled battery connection cables simplify motor installation. Our 7-foot electric battery cables and 18-inch battery jumper cables are adequately sized based on the motor amp draw. Swaged terminal ends are sealed with epoxy-impregnated heat-shrink tubing where they connect to marine-grade fuse blocks, Anderson motor connectors, and batteries.

BATTERY MONITOR:

Battery monitors help you take better care of your battery. Your battery monitor also provides real-time and historical information on voltage, power consumption, and more.

Battery Monitor | Victron BMV-700 $186 EP-6, EP-12, EP-20
Smart Battery Monitor | Victron BMV-712 $243 EP-6, EP-12, EP-20
Elco DASH App Bluetooth connector $345 ALL ELCO INBOARDS
Elco NMEA 2000 Gateway $545 ALL ELCO INBOARDS
Battery Monitor | Victron BMV-700H $728  EP-25, EP-40, EP-70, EP-100,EP-200
Smart Battery Monitor | Victron BMV-710H $775  EP-25, EP-40, EP-70, EP-100,EP-200

ACCESSORIES:

Female and Male Couplings $268/ea ALL ELCO INBOARDS
Motor Mounts (4x) $450 EP-40, EP-70, EP-100, EP-200, EP-250
Throttle Extension Cable 8’ $225 ALL ELCO INBOARDS

elco motor yachts

Not Ready To Buy?