6.2 MCGB-514 Westerbeke 6.2 kW Multiport EFI – 50 Hz – 1500 RP

Description

New Westerbeke 6.2 MCGB-514 6.2 kW 50 Hz Multiport EFI Marine Gasoline Generator For Sale

Compact, Low-Speed Marine Power with Multiport EFI

The New Westerbeke 6.2 MCGB-514 6.2 kW Marine Gasoline Generator is a compact, low-profile generator designed to provide reliable onboard electricity for gasoline-powered motor yachts, sport boats, cruisers, passenger craft, and other compatible marine vessels.

Delivering 6.2 kW at 230V, single phase and 50 Hz, the Westerbeke 6.2 MCGB-514 operates at a low 1500 RPM. It combines a naturally aspirated three-cylinder industrial engine with sequential multiport electronic fuel injection, electronic governing, freshwater cooling, a water-cooled returnless fuel system, a brushless four-pole alternator, remote starting, and automatic safety protection. 6.2 MCGB-514 6.2

This generator is suitable for compatible onboard loads such as:

• Battery chargers and inverter-chargers
• Refrigerators and freezers
• Freshwater and seawater pumps
• Lighting systems
• Navigation and communication electronics
• Entertainment systems
• Electrical outlets
• Selected galley appliances
• Compatible air-conditioning systems

The generator’s ability to support these systems depends on the vessel’s total running demand, motor-starting loads, wiring configuration, and load-management arrangement.

Customers looking for the Westerbeke 6.2 MCGB-514 6.2 for sale should confirm that their vessel uses gasoline or petrol and requires a 230V, 50 Hz, single-phase electrical supply.

A Marine Gasoline Generator, Not a Diesel Generator

Despite being occasionally described online as a diesel model, the 6.2 MCGB-514 6.2 is officially classified by Westerbeke as a marine gasoline generator.

The letters “EFI” refer to electronic fuel injection, and this model uses sequential multiport gasoline injection rather than a diesel injection system. Westerbeke places it within its current-production Multiport EFI gasoline-generator range.

This distinction is essential when planning:

• Fuel-tank compatibility
• Fuel-line installation
• Machinery-space ventilation
• Ignition-protected electrical components
• Exhaust-system design
• Carbon-monoxide protection
• Compliance with marine gasoline-installation regulations

The generator should only be installed in a vessel with a correctly engineered gasoline fuel system and suitable machinery-space safety arrangements. 6.2 MCGB-514 6.2

Low-Profile, Low-Speed Marine Engineering

The Westerbeke 6.2 MCGB-514 6.2 is designed to provide useful electrical output without relying on the high operating speeds used by many compact generator sets.

Its 1500 RPM operating speed helps provide smoother and quieter performance than comparable 3000 RPM 50 Hz generators. Westerbeke combines this low-speed design with a heavy-duty industrial base engine to support reliability and long-term operation.

The generator’s marine-specific features include:

• Three-cylinder industrial gasoline engine
• Sequential multiport electronic fuel injection
• Water-cooled returnless fuel system
• Electronic engine governing
• Freshwater cooling with heat exchanger
• Water-injected exhaust elbow
• Belt-driven raw-water pump
• Brushless four-pole alternator
• Vibration isolators
• Remote lubricating-oil filter
• AC circuit breaker
• Remote starting capability
• Automatic safety warnings and shutdowns

These features make the generator suitable for original installations and compatible marine generator replacement projects.

Three-Cylinder Gasoline Engine Performance

The 6.2 MCGB-514 uses a naturally aspirated, three-cylinder, four-stroke gasoline engine with approximately 48.5 cubic inches or 0.795 litres of displacement.

The engine produces approximately 11 hp at 1500 RPM and uses a semi-spherical combustion chamber, aluminium cylinder head, cast-iron cylinder block, forged crankshaft, and four main bearings.

The three-cylinder configuration supports smoother operation than many small twin-cylinder generator platforms. Its low 1500 RPM speed also helps reduce mechanical frequency, vibration, and perceived engine noise aboard the vessel.

6.2 kW Electrical Output at 50 Hz

The Westerbeke 6.2 MCGB-514 is rated to produce 6.2 kW of single-phase electrical power at 50 Hz.

The published electrical output is 230V, 26.9 amps, 50 Hz and single phase, making it suitable for vessels with compatible European and international marine electrical systems.

A professional onboard load calculation should be completed before purchase. The assessment should account for:

• Continuous electrical demand
• Compressor and electric-motor starting current
• Battery-charger consumption
• Simultaneous equipment operation
• Generator reserve capacity
• Potential future electrical additions

A generator may have sufficient rated output for normal operation but still struggle when several motors or compressors start simultaneously.

Sequential Multiport Electronic Fuel Injection

A major feature of the Westerbeke 6.2 MCGB is its sequential multiport electronic fuel-injection system.

Multiport EFI meters and delivers fuel separately to the engine’s intake ports. Compared with a conventional carburettor, this allows more precise fuel delivery under different operating temperatures and electrical loads.

Westerbeke identifies the benefits of its MPI system as:

• Easier starting
• Improved fuel efficiency
• Reduced emissions
• Better reliability
• Consistent engine response
• Advanced diagnostic capability

The system works together with electronic speed control to reduce engine bogging when a substantial electrical load is applied.

Advanced diagnostic support is also available through Westerbeke’s EC-11 diagnostic software for qualified technicians servicing compatible EFI generator models.

Water-Cooled Returnless Fuel System

The 6.2 MCGB incorporates a water-cooled returnless gasoline fuel system.

Gasoline can be vulnerable to vaporisation when machinery-space temperatures become high. Vaporised fuel may interrupt fuel delivery and contribute to difficult starting, unstable running, or vapor lock.

Westerbeke’s water-cooled returnless design helps control fuel temperature and improve generator performance in high ambient temperatures.

The complete vessel fuel installation should include:

• Approved marine gasoline hoses
• Correctly sized fuel supply line
• Accessible fuel shutoff valve
• Suitable filtration
• Properly grounded fuel components
• Adequate machinery-space ventilation
• Ignition-protected electrical components
• Leak-free connections

Gasoline generator installation and service should be performed by qualified marine technicians familiar with applicable safety standards.

Electronic Governing for Stable Frequency

The 6.2 MCGB uses an electronic governor to help maintain its rated 1500 RPM operating speed as electrical demand changes.

When pumps, compressors, chargers, or other loads are switched on, the engine experiences an immediate increase in mechanical demand. The governor adjusts engine operation to reduce speed loss and support stable generator frequency.

Published frequency regulation is approximately 0.5 Hz, or 1%, from no load to full load.

Stable frequency is beneficial for compatible:

• Refrigeration compressors
• Air-conditioning equipment
• Battery chargers
• Electric pumps
• Navigation electronics
• Communication equipment
• Lighting circuits
• Entertainment systems

Electronic governing improves generator response, but it cannot compensate for severe overloading or an incorrectly sized generator.

Brushless Four-Pole Alternator

The Westerbeke 6.2 MCGB uses a brushless, four-pole, revolving-field alternator.

Its published alternator features include:

• Brushless construction
• Four-pole design
• Revolving electrical field
• Class H insulation
• Cast centrifugal cooling blower
• Approximately ±5% voltage regulation
• Approximately 0.5 Hz frequency regulation

Class H insulation provides thermal protection for the alternator windings, while brushless construction reduces maintenance associated with carbon brushes.

Westerbeke also states that the generator’s electromagnetic-interference level exceeds the requirements of most marine radio telephones and standard televisions. Proper vessel wiring, grounding, cable routing, and electrical protection remain essential for dependable onboard performance.

Freshwater Cooling with Heat Exchanger

The generator engine uses a freshwater cooling system with a marine heat exchanger.

Coolant circulates internally through the engine and freshwater-cooled exhaust manifold. Raw water drawn from outside the vessel removes heat through the heat exchanger before being discharged through the water-injected exhaust system.

The system includes:

• Closed freshwater coolant circuit
• Marine heat exchanger
• Coolant-recovery tank
• Belt-driven raw-water pump
• Freshwater-cooled exhaust manifold
• Water-injected exhaust elbow
• ¾-inch raw-water connection

Routine cooling-system maintenance should include inspecting:

• Raw-water strainer
• Seawater pump and belt
• Raw-water impeller
• Coolant level and condition
• Heat exchanger
• Cooling hoses and clamps
• Exhaust-injection elbow
• Wet-exhaust hose
• Anti-siphon arrangement

Restricted raw-water flow can cause high exhaust or coolant temperature and trigger a protective shutdown.

Fuel Consumption

Westerbeke publishes the following approximate gasoline-consumption figures for the 6.2 MCGB operating at 1500 RPM:

These are approximate published figures. Actual fuel use will depend on generator condition, electrical demand, fuel quality, ambient temperature, installation, ventilation, and maintenance.

One-Touch Control and Remote Starting

The generator includes a straightforward one-touch start-and-stop control panel with:

• Running-hour meter
• Warning-annunciation light strip
• Generator start-and-stop control
• Operating-status information

The generator is also configured for remote starting. An optional remote start-and-stop panel and extension harness are available for installations where the generator is controlled from the helm, electrical panel, or cabin.

Automatic Safety Warnings and Shutdowns

The Westerbeke 6.2 MCGB includes safety monitoring for potentially damaging operating conditions.

Published protection includes warnings and shutdowns for:

• Engine overspeed
• Engine underspeed
• Low lubricating-oil pressure
• High exhaust temperature
• High coolant temperature
• Other monitored engine conditions

An AC circuit breaker is also included to protect the generator’s electrical output.

Automatic shutdown systems reduce the risk of serious damage but do not replace routine inspection and preventative maintenance.

Compact Dimensions and Installation Planning

The Westerbeke product page lists the following approximate generator dimensions:

The official installation drawing should be used when designing the generator foundation, connections, service clearances, and removal route. Westerbeke warns that general brochure drawings are for reference and should not be used as final installation drawings.

The installation team should confirm:

• Machinery-space measurements
• Mounting-hole locations
• Service access
• Generator removal route
• Fuel-line routing
• Ventilation and blower capacity
• Raw-water intake position
• Wet-exhaust configuration
• Starting-battery cable size
• AC output cable size
• Grounding arrangement
• Shore-power transfer system

Optional Ventilated Enclosure

Westerbeke offers an optional ventilated enclosure, sometimes referred to as the Venclosure, for the 7.5/6.2 MCGB generator platform.

The enclosure is not sold separately and should normally be specified with the generator order.

The ventilated enclosure helps provide a finished protective installation while maintaining airflow around the gasoline generator. It should not be treated as a substitute for correctly engineered machinery-space ventilation.

Applications of the Westerbeke 6.2 MCGB-514

Gasoline-Powered Motor Yachts

The generator is particularly suitable for vessels whose main engines and onboard fuel system already use gasoline.

Sport Cruisers

Its low profile and 1500 RPM operation make it practical for compatible cruisers requiring reliable electricity for refrigeration, charging, lighting, pumps, and domestic systems.

Passenger and Hospitality Boats

The generator may support compatible lighting, refrigeration, entertainment systems, communication equipment, and passenger-service loads.

Marine Generator Replacement

The 6.2 MCGB may replace an existing gasoline generator where voltage, frequency, phase, dimensions, weight, exhaust, cooling, wiring, ventilation, and fuel-system arrangements are compatible.

Complete Technical Specifications

These figures are based on Westerbeke’s official product page and February 2026 advanced specification sheet. Specifications may be revised, so the serial-number-specific documentation and final quotation should be confirmed before installation.

Standard Equipment

Standard equipment includes:

• Three-cylinder gasoline engine
• Sequential multiport EFI
• Water-cooled returnless fuel system
• Electronic governing
• One-touch start-and-stop control panel
• Running-hour meter
• Warning-annunciation lights
• Freshwater cooling and coolant-recovery tank
• AC circuit breaker
• 10-amp or current production battery charger specification
• Water-injected exhaust elbow
• Belt-driven raw-water pump
• Vibration isolators
• Remote lubricating-oil filter
• Oil-drain hose
• Belt guard
• Operator’s manual
• Parts documentation

The official product page states that the model meets applicable USCG requirements, CARB and US EPA regulations and is CE certified.

Optional Equipment

Available options may include:

• Remote start-and-stop panel
• Extension wiring harness
• Ventilated enclosure
• SIDEX water-injected exhaust elbow
• Hydro-Hush muffler and fittings
• Anti-siphon valve with stainless-steel loop
• Ship-to-shore transfer switch
• Auxiliary DC power adapter
• Onboard spare-parts kit
• Extended-cruising spare-parts kit

Final package contents should be confirmed when requesting a quotation.

Frequently Asked Questions

Is the Westerbeke 6.2 MCGB a diesel generator?

No. It is a gasoline or petrol marine generator with sequential multiport electronic fuel injection.

How much power does the 6.2 MCGB-514 produce?

It produces 6.2 kW at 230V, 50 Hz and 1500 RPM, with a rated current of 26.9 amps.

Is the generator single phase?

Yes. Model 6.2 MCGB-514 6.2 is listed as a 230V, four-wire, single-phase generator.

Does it have electronic fuel injection?

Yes. It uses sequential Multiport EFI, which supports easy starting, efficient fuel delivery, reduced emissions, and electronic diagnostics.

Is the engine freshwater cooled?

Yes. It uses freshwater cooling with a marine heat exchanger and a freshwater-cooled exhaust manifold.

Is remote starting available?

Yes. The generator has a remote-start configuration, and an optional remote start-and-stop panel with extension harness is available.

Can the generator operate at 60 Hz?

Westerbeke states that the generator platform is field-convertible between 50 and 60 Hz. However, conversion changes the generator’s speed and electrical rating and should only be completed using approved Westerbeke procedures and components.

What is the Westerbeke 6.2 MCGB-514 6.2 price?

The Westerbeke 6.2 MCGB-514 6.2 price depends on current availability, optional enclosure, exhaust arrangement, remote-control accessories, installation components, shipping destination, and export requirements.

Request a Quote for the Westerbeke 6.2 MCGB-514

The New Westerbeke 6.2 MCGB-514 6.2 kW 50 Hz Multiport EFI Marine Gasoline Generator combines low-speed 1500 RPM operation, sequential electronic fuel injection, stable electronic governing, freshwater cooling, a brushless four-pole alternator, compact dimensions, and comprehensive safety protection.

It is an excellent choice for compatible gasoline-powered yachts and marine vessels requiring dependable 230V, 50 Hz auxiliary electricity.

Contact our marine generator specialists to request the latest Westerbeke 6.2 MCGB-514 6.2 price, confirm availability, select the appropriate optional accessories, and review compatibility with your vessel’s fuel, electrical, ventilation, cooling, and exhaust systems.