Westerbeke 5.0 MCG – 5.0kW, 60 Hz low-CO Gas Generator

Description

Westerbeke 5.0 MCG 5.0 kW 60 Hz Low-CO Marine Gasoline Generator For Sale

Compact, Low-Speed Multiport EFI Power for Marine Vessels

The Westerbeke 5.0 MCG 5.0 kW 60 Hz Low-CO Marine Gasoline Generator is a compact, electronically governed generator developed for gasoline-powered motor yachts, sport cruisers, houseboats, passenger boats, and other compatible marine vessels.

The 5.0 MCG-614 delivers 5.0 kW of single-phase electrical power at 120V, 60 Hz and 1800 RPM, with a rated output of 41.6 amps. It combines a naturally aspirated three-cylinder engine with sequential multiport electronic fuel injection, a water-cooled returnless fuel system, freshwater cooling, a brushless four-pole alternator, remote starting, automatic safety shutdowns, and Low-CO exhaust technology.

Its electrical output may support compatible onboard systems such as:

• Battery chargers and inverter-chargers
• Marine refrigerators and freezers
• Freshwater and seawater pumps
• Cabin and deck lighting
• Navigation and communication electronics
• Entertainment systems
• Electrical outlets
• Selected galley appliances
• Appropriately sized air-conditioning systems

Actual suitability depends on the vessel’s continuous electrical demand, motor- and compressor-starting current, simultaneous appliance use, and desired generator reserve. 5.0 MCG 5

Important Fuel-Type Clarification

The Westerbeke 5.0 MCG 5 is a gasoline or petrol marine generator—not a diesel generator.

It requires an approved marine gasoline fuel system, ignition-protected electrical components, adequate machinery-space ventilation, properly positioned carbon-monoxide detectors, and a correctly engineered wet-exhaust installation.

Correct fuel identification is important when assessing:

• Fuel-tank compatibility
• Marine fuel-hose requirements
• Fuel filtration
• Machinery-space ventilation
• Ignition-protected components
• Fire and explosion protection
• Carbon-monoxide detection
• Exhaust-system routing
• Installation-code compliance

The generator must not be connected to or operated from a diesel fuel system. Westerbeke specifies fresh unleaded gasoline with an octane rating of 89 or higher and no more than 10% ethanol for the 5.0 MCG 5 engine family.

Production and Availability Status

The Westerbeke 5.0 MCG 5 is no longer in production. Westerbeke continues to provide parts information, advanced specifications, operating and technical manuals, wiring diagrams, installation drawings, service bulletins, and diagnostic support for the model.

Units currently offered for sale may therefore include:

• Unused old-stock generators
• Dealer or distributor surplus
• Previously installed low-hour units
• Professionally reconditioned generators
• Used generators removed during vessel refits

Before purchasing an available unit, confirm:

• Serial number and production date
• New, surplus, used, or reconditioned condition
• Total operating hours
• EFI and electronic-control condition
• Catalyst inspection and replacement history
• Included control panel and wiring harness
• Cooling- and exhaust-system condition
• Maintenance records
• Current warranty coverage
• Replacement-parts availability

Any advertised Westerbeke 5.0 MCG 5 price should be evaluated together with the generator’s condition, service history, included accessories, catalyst age, and installation compatibility.

Low-CO, Low-Profile and Low-Speed Design

Westerbeke developed the 5.0 MCG 5 as a compact Low-CO, low-profile and low-speed gasoline generator. Its dimensions are comparable with some high-speed generator sets, but it produces 60 Hz electricity while operating at 1800 RPM rather than 3600 RPM.

Its principal marine features include:

• Three-cylinder industrial gasoline engine
• Sequential Multiport EFI
• Water-cooled returnless fuel system
• Electronic engine governing
• Low-CO catalytic exhaust treatment
• Freshwater cooling with heat exchanger
• Freshwater-cooled exhaust manifold
• Brushless four-pole alternator
• One-touch starting and stopping
• Remote-control capability
• AC output circuit breaker
• Automatic warnings and shutdowns
• Integral battery charger
• Belt-driven raw-water pump
• Water-injected exhaust elbow
• Vibration-isolating mounts
• Lubricating-oil drain hose
• Belt guard

These features make the 5.0 MCG 5 suitable for compatible original installations and marine generator replacement projects where space, output, fuel type, voltage, and operating speed are important.

Smooth Three-Cylinder Gasoline Engine

The Westerbeke 5.0 MCG 5 uses a naturally aspirated, three-cylinder, four-stroke gasoline engine with a displacement of 40.3 cubic inches or approximately 0.66 litres.

The engine produces approximately 8.3 hp at 1800 RPM and uses a 9.8:1 compression ratio. Its construction includes an aluminium cylinder head, cast-iron cylinder block, forged crankshaft supported by four main bearings, and overhead rotating valves.

Engine specification	Published value
Number of cylinders	3
Cylinder arrangement	Vertical inline
Engine cycle	Four stroke
Fuel type	Gasoline/petrol
Aspiration	Naturally aspirated
Displacement	40.3 cu. in. / 0.66 L
Bore × stroke	2.56 × 2.61 in.
Compression ratio	9.8:1
Engine output	Approximately 8.3 hp
Rated speed	1800 RPM
Combustion system	Semi-spherical
Fuel system	Sequential Multiport EFI
Governor	Electronic
Electrical system	12V DC, negative ground

The engine also incorporates a balance shaft intended to minimise the vibration normally associated with compact three-cylinder engines. Combined with electronically controlled 1800 RPM operation, this supports smooth and relatively quiet onboard performance.

5.0 kW Electrical Output at 60 Hz

The standard Westerbeke 5.0 MCG-614 provides the following published ratings:

Electrical specification	Rating
Generator model	5.0 MCG-614
Rated output	5.0 kW
Voltage	120V
Rated current	41.6 amps
Frequency	60 Hz
Phase	Single phase
Number of wires	Four
Power factor	1.0
Operating speed	1800 RPM
Starting arrangement	Remote

The 5.0 MCG 5-614 is therefore primarily suited to compatible 120V, 60 Hz marine electrical systems. It is not listed as a standard 120/240V output model in the original specification sheet. Vessel voltage, neutral arrangement, grounding, circuit protection, shore-power switching, and appliance compatibility should be verified before installation.

Marine Electrical Load Planning

A professional electrical-load calculation should be completed before selecting the Westerbeke 5.0 MCG 5.

The assessment should account for:

• Continuous electrical consumption
• Air-conditioning compressor startup
• Refrigeration compressor startup
• Freshwater-pump starting current
• Seawater-pump starting current
• Battery-charger demand
• Lighting and electronic loads
• Simultaneous appliance use
• Planned future additions
• Desired operating reserve

Electric motors and compressors may temporarily draw several times their normal running current when starting. A generator may therefore have sufficient capacity for the combined running load but still experience difficulty if multiple high-demand components start simultaneously.

Possible signs of generator overloading include:

• Voltage reduction
• Frequency instability
• Difficulty starting compressors
• Engine-speed reduction
• Unstable lighting
• Circuit-breaker operation
• Excessive operating temperature
• Automatic shutdowns

Electronic governing improves the generator’s response to changing demand but cannot compensate for continuous overloading.

Field-Convertible 50 and 60 Hz Platform

The 5.0 MCG 5 shares its engine and alternator platform with the corresponding 4.2 MCG 50 Hz generator.

Configuration	Output	Voltage	Frequency	Speed
5.0 MCG-614	5.0 kW	120V	60 Hz	1800 RPM
4.2 MCG-514	4.2 kW	230V	50 Hz	1500 RPM

Westerbeke originally described the platform as field-convertible between 50 and 60 Hz. Conversion affects engine speed, rated output, voltage configuration, electronic settings, circuit protection, and compatibility with connected appliances.

Any conversion should be completed by an authorised or suitably qualified Westerbeke technician using the correct technical procedure.

Sequential Multiport Electronic Fuel Injection

The 5.0 MCG 5 uses sequential multiport electronic fuel injection, commonly referred to as Multiport EFI or MPI.

Instead of using a conventional carburettor, the system electronically controls fuel delivery to the engine’s intake ports. Westerbeke identifies the principal benefits as improved fuel efficiency, easy starting, improved reliability, reduced emissions, and advanced diagnostic capability.

Potential operational benefits include:

• Easier cold and warm starting
• Precise fuel delivery
• More consistent air-to-fuel control
• Improved response to electrical-load changes
• Reduced fuel-related hesitation
• Better performance in changing temperatures
• Electronic fault diagnosis
• Reduced normal exhaust emissions

The fuel-injection system works together with electronic speed control to maintain the engine’s operating speed and reduce bogging when electrical loads are applied.

EC-11 Diagnostic Support

The Westerbeke 5.0 MCG 5 is supported by the manufacturer’s EC-11 diagnostic software.

The software provides detailed operating parameters and can assist qualified technicians when diagnosing fuel-injection, ignition, sensor, governor, and control-system problems. Westerbeke specifies the use of its proprietary interface cable and recommends that the software be used by qualified technicians.

Diagnostic support may help investigate:

• Difficult starting
• Unstable engine speed
• EFI sensor faults
• Fuel-delivery problems
• Ignition-system faults
• Unexpected shutdowns
• Abnormal emissions
• Poor electrical-load response

Electronic diagnostics do not replace mechanical inspection, fuel-pressure testing, exhaust analysis, cooling-system checks, or scheduled servicing.

Water-Cooled Returnless Fuel System

Gasoline may vaporise when exposed to high machinery-space temperatures. This can contribute to vapor lock, difficult starting, unstable operation, or interrupted fuel delivery.

The Westerbeke 5.0 MCG 5 uses a water-cooled returnless fuel system designed to help regulate fuel temperature and improve operation in high ambient conditions.

A correctly installed marine gasoline fuel system should include:

• Approved gasoline-resistant marine hose
• Correctly sized fuel-supply piping
• An accessible shutoff valve
• A suitable gasoline water-separating filter
• Secure and leak-free fittings
• Proper grounding and bonding
• Ignition-protected electrical components
• Adequate machinery-space ventilation
• Routine fuel-leak inspections

The published fuel-supply connection is approximately ¼-inch internal diameter or 6.35 mm. Westerbeke’s operator documentation also requires a suitable owner-installed gasoline water separator between the vessel’s tank and the generator.

Westerbeke Low-CO Technology

The Low-CO designation does not mean that the generator produces no carbon monoxide.

Westerbeke’s Low-CO system reduces normal CO levels through precise electronic control of the engine’s air-to-fuel ratio combined with exhaust after-treatment using a specialised catalyst. CO output can vary according to electrical load and the condition of the fuel, air, electronic-control, sensor, and catalyst systems. 5.0 MCG 5

Carbon monoxide remains:

• Colourless
• Odourless
• Tasteless
• Poisonous
• Potentially fatal

Every gasoline-generator installation should include:

• Functioning marine carbon-monoxide detectors
• Correct detector placement
• Adequate machinery-space ventilation
• A properly installed, leak-free exhaust system
• Correct exhaust-outlet positioning
• Regular catalyst and exhaust inspection
• Proper fuel- and ignition-system maintenance
• Professional CO testing at the required intervals

Westerbeke specifically warns that operators must not rely on outdoor dilution for safety. If a CO detector activates, the generator and propulsion engines should be stopped, the vessel evacuated and ventilated, and professional assistance obtained.

Catalyst Inspection and Replacement

The catalyst is critical to the generator’s Low-CO performance. Water entering the exhaust system can damage its internal honeycomb structure and rapidly compromise emissions control.

Westerbeke instructs technicians to inspect the catalyst for visible irregularities and evidence of water intrusion. A damaged catalyst and sealing gasket should be replaced, and exhaust CO should then be tested using an appropriate analyser.

The operator’s manual specifies:

• Catalyst replacement every 2,000 operating hours
• Oxygen-sensor replacement every 2,000 operating hours
• Verification of satisfactory exhaust CO levels seasonally or every 1,000 operating hours, whichever occurs first
• Inspection for exhaust leaks whenever CO testing is performed

These requirements are particularly important when evaluating a used or reconditioned Westerbeke 5.0 MCG 5.

Electronic Governing for Stable Frequency

The 5.0 MCG 5 uses an electronic engine governor to help maintain 1800 RPM as electrical demand changes.

When a compressor, pump, charger, or other substantial load starts, the engine experiences an immediate increase in mechanical resistance. The governor adjusts engine operation to minimise speed loss and maintain stable 60 Hz electricity.

Westerbeke publishes frequency regulation of approximately 0.5 Hz, or 1%, from no load to full load.

Stable frequency supports compatible:

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

Brushless Four-Pole Alternator

The Westerbeke 5.0 MCG 5 uses a brushless, four-pole revolving-field alternator.

Published alternator characteristics include:

• Brushless construction
• Four-pole electrical design
• Revolving electrical field
• Class H winding insulation
• Direct-connected centrifugal cooling blower
• Approximately ±5% voltage regulation
• Approximately 0.5 Hz frequency regulation
• Temperature rise within the applicable NEMA definition

The four-pole design allows the generator to produce 60 Hz electricity at 1800 RPM. Brushless construction reduces routine maintenance associated with carbon brushes, while Class H insulation provides thermal protection for the windings.

Westerbeke also states that the alternator’s electromagnetic-interference performance exceeds the requirements of most marine radio telephones and standard televisions. Correct grounding, circuit protection, cable routing, and installation remain essential.

Freshwater Cooling with Marine Heat Exchanger

The Westerbeke 5.0 MCG 5 uses a freshwater cooling system with a marine heat exchanger.

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

The system includes:

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

The published cooling-system capacity is approximately 3.5 US quarts or 3.3 litres.

Routine maintenance should include inspection of:

• Coolant level and condition
• Raw-water intake and seacock
• Seawater strainer
• Raw-water pump and impeller
• Pump drive belt
• Heat-exchanger passages
• Cooling hoses and clamps
• Zinc anode
• Exhaust-injection elbow
• Siphon break
• Wet-exhaust hose
• Waterlift muffler

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

Wet-Exhaust and Siphon-Break Requirements

The generator uses a two-inch water-injected marine exhaust connection.

The exhaust system must prevent seawater from entering the engine under all loading, sea, and vessel-heel conditions. Where the exhaust-manifold injection point is close to or below the loaded waterline, Westerbeke requires a siphon break in the raw-water supply to the exhaust elbow. The manual specifies that the loop should be positioned at least 20 inches above the vessel’s waterline.

Incorrect exhaust-system design may cause:

• Seawater intrusion
• Catalyst damage
• Internal corrosion
• Serious engine failure
• Exhaust leakage
• Carbon-monoxide exposure
• Vessel flooding

The final exhaust arrangement should be designed by a qualified marine installer using the approved model-specific installation drawing.

Approximate Fuel Consumption

Westerbeke publishes the following approximate gasoline-consumption figures for the 5.0 MCG 5 at 1800 RPM:

Generator load	Approximate fuel consumption
100% load	0.74 US gal/hr / 2.79 L/hr
75% load	0.59 US gal/hr / 2.22 L/hr
50% load	0.46 US gal/hr / 1.74 L/hr
25% load	0.36 US gal/hr / 1.35 L/hr

Actual fuel consumption will vary according to connected electrical demand, engine condition, gasoline quality, ambient temperature, ventilation, EFI-system condition, installation, and maintenance.

One-Touch Control and Remote Starting

The original generator package included a straightforward one-touch start-and-stop control panel with a running-hour meter and LED status indicators.

The control and protection arrangement included:

• Local start-and-stop control
• Running-hour meter
• Warning indicators
• Electronic engine control
• Automatic safety shutdowns
• AC output circuit breaker
• Remote-control capability
• Integral starting-battery charger

An optional remote start-and-stop panel could be installed at the helm, saloon, electrical panel, or another suitable position aboard the vessel.

Automatic Safety Warnings and Shutdowns

The Westerbeke 5.0 MCG 5 monitors potentially damaging operating conditions and can shut down automatically when a serious fault is detected.

Published protection includes:

• Engine overspeed
• Low lubricating-oil pressure
• High exhaust temperature
• High engine-coolant temperature
• Additional monitored operating faults

These systems reduce the risk of serious damage but do not replace routine checks of oil, coolant, raw-water discharge, fuel connections, exhaust components, electrical wiring, and machinery-space ventilation.

Starting System and Battery Charging

The 5.0 MCG 5 uses a 12V, 1.4 kW electric starting motor and an integral 12-amp battery charger.

Starting-system specification	Published value
Electrical system	12V DC, negative ground
Starting motor	12V, 1.4 kW
Cranking requirement	Approximately 105 amps at 70°F
Battery charger	12 amps
Starting arrangement	Remote

The starting battery should be correctly sized, securely mounted, connected with marine-grade cables, and protected by appropriate battery switching and circuit protection.

Quiet 1800 RPM Operation

The Westerbeke 5.0 MCG 5 combines several features intended to reduce operating noise and vibration:

• Low-speed 1800 RPM operation
• Three-cylinder engine with balance shaft
• Electronic governing
• Flexible vibration isolators
• Freshwater-cooled exhaust manifold
• Water-injected exhaust system
• Compact industrial engine construction

Westerbeke described the model as exceptionally smooth and quiet compared with many 3600 RPM gasoline generators, which may require additional sound shielding to reach similar onboard noise levels.

Final noise levels will also depend on:

• Generator foundation
• Machinery-space insulation
• Ventilation openings
• Muffler selection
• Exhaust-hose routing
• Flexible connections
• Hose and cable support
• Structural vibration transmission

Dimensions and Installation Planning

The Westerbeke 5.0 MCG 5 has the following published base-generator dimensions:

Measurement	Published specification
Length	25.00 in. / approximately 635 mm
Width	18.20 in. / approximately 462 mm
Height	17.20 in. / approximately 437 mm
Dry weight	334 lb. / 151.5 kg
Raw-water connection	¾ in. / 19.1 mm
Exhaust connection	2 in. / 50.8 mm
Fuel-supply connection	¼ in. ID / 6.35 mm
Lubricating-oil capacity	3.0 qt / 2.8 L
Cooling-system capacity	3.5 qt / 3.3 L
Maximum operating angle	25° in all directions

Westerbeke states that its general drawing is for reference only and should not replace the detailed installation drawing. Final foundation dimensions and connection positions should be confirmed using the correct model- and serial-number-specific documentation.

Before installation, confirm:

• Machinery-space dimensions
• Mounting-hole positions
• Generator lifting and removal route
• Routine maintenance access
• Gasoline fuel-system compatibility
• Ignition-protected ventilation
• Raw-water intake arrangement
• Siphon-break requirements
• Wet-exhaust routing
• Starting-battery cable size
• AC output cable size
• Grounding and bonding
• Shore-power transfer switching
• Carbon-monoxide detector placement

Typical Applications

Gasoline-Powered Motor Yachts

The generator is suited to compatible vessels whose propulsion engines and onboard fuel systems already use gasoline.

Sport Cruisers

Its compact dimensions and 1800 RPM operation may suit cruisers requiring electricity for charging, refrigeration, pumps, lighting, electronics, and selected comfort systems.

Houseboats and Liveaboard Vessels

The 5.0 MCG 5 may support compatible refrigerators, freshwater systems, battery banks, lighting, outlets, entertainment systems, and smaller domestic loads.

Passenger and Hospitality Craft

It may provide auxiliary power for lighting, refrigeration, communication systems, pumps, and passenger-service loads.

Marine Generator Replacement

The 5.0 MCG 5 may replace an older gasoline generator where fuel type, voltage, frequency, output, dimensions, weight, ventilation, cooling, exhaust, controls, and vessel wiring are compatible.

Complete Technical Specifications

Specification	Details
Manufacturer	Westerbeke
Model	5.0 MCG-614
Generator type	Low-CO Multiport EFI Marine Gasoline Generator
Rated output	5.0 kW
Voltage	120V
Frequency	60 Hz
Phase	Single phase
Rated current	41.6 amps
Number of wires	Four
Power factor	1.0
Operating speed	1800 RPM
Engine cylinders	Three
Engine configuration	Vertical inline
Engine cycle	Four stroke
Fuel type	Gasoline/petrol
Aspiration	Naturally aspirated
Displacement	40.3 cu. in. / 0.66 L
Bore × stroke	2.56 × 2.61 in.
Compression ratio	9.8:1
Engine output	Approximately 8.3 hp
Fuel system	Sequential Multiport EFI
Fuel cooling	Water-cooled returnless system
Low-CO system	Electronic fuel control with catalyst
Governor	Electronic
Alternator	Brushless, four pole
Voltage regulation	Approximately ±5%
Frequency regulation	Approximately 0.5 Hz
Winding insulation	Class H
Cooling system	Freshwater with heat exchanger
Exhaust manifold	Cast aluminium, freshwater cooled
Raw-water pump	Belt driven
Starting system	12V, 1.4 kW electric
Battery charger	12 amps
Raw-water connection	¾ inch
Exhaust connection	2 inches
Oil capacity	3.0 qt / 2.8 L
Coolant capacity	3.5 qt / 3.3 L
Dimensions	25.0 × 18.2 × 17.2 in.
Dry weight	334 lb. / 151.5 kg
Maximum operating angle	25° in all directions
Diagnostic system	Westerbeke EC-11 compatible
Production status	Discontinued

The technical figures above are based on Westerbeke’s official advanced specification sheet and current legacy-model record. Final configuration should be checked against the exact generator serial number before installation.

Standard Equipment

Original standard equipment included:

• Three-cylinder gasoline engine
• Sequential Multiport EFI
• Water-cooled returnless fuel system
• Low-CO exhaust catalyst
• Electronic engine governor
• One-touch start-and-stop panel
• Running-hour meter
• LED status indicators
• Automatic safety warnings and shutdowns
• Freshwater cooling
• Coolant-recovery tank
• AC output circuit breaker
• 12-amp battery charger
• 90-degree water-injected exhaust elbow
• Belt-driven raw-water pump
• Vibration isolators
• Lubricating-oil drain hose
• Belt guard
• Operator’s manual
• Parts documentation

Original literature stated that the generator met USCG regulation 33 CFR 183 and was supported by a five-year limited warranty. Any warranty offered on a currently available unit should be confirmed according to its age, condition, serial number, commissioning history, seller, and original registration status. 5.0 MCG 5

Optional Equipment

Original optional accessories included:

• Remote start-and-stop controls
• Remote lubricating-oil filter
• Onboard spare-parts kit
• Extended-cruising spare-parts kit
• Hydro-Hush muffler and fittings
• Anti-siphon valve with ¾-inch stainless-steel loop
• Ship-to-shore transfer switch
• Auxiliary DC power adapter

Availability of legacy accessories should be confirmed before finalising an order.

Frequently Asked Questions

Is the Westerbeke 5.0 MCG 5 a diesel generator?

No. It is a gasoline or petrol marine generator with sequential Multiport EFI.

How much power does the 5.0 MCG 5 produce?

It produces 5.0 kW at 120V, 60 Hz and 1800 RPM, with a rated current of 41.6 amps.

Is the Westerbeke 5.0 MCG still manufactured?

No. Westerbeke identifies the 5.0 MCG 5 as a model that is no longer in production, although parts information, manuals, wiring diagrams, and diagnostic support remain available.

How many cylinders does the engine have?

The generator uses a naturally aspirated three-cylinder gasoline engine with approximately 0.66 litres of displacement.

Does it use electronic fuel injection?

Yes. It uses sequential Multiport EFI for controlled fuel delivery, easier starting, improved load response, reduced normal emissions, and electronic diagnostics.

What does Low-CO mean?

Low-CO means the generator uses precise electronic air-to-fuel control and catalytic exhaust after-treatment to reduce normal carbon-monoxide emissions. It does not eliminate carbon monoxide or make the exhaust safe to breathe.

Does the catalyst require replacement?

Yes. The applicable operator manual specifies replacement every 2,000 engine hours and verification of satisfactory CO levels seasonally or every 1,000 hours, whichever occurs first.

Is a marine carbon-monoxide detector required?

Yes. Westerbeke instructs operators not to run the generator unless the boat has a functioning marine CO detector. Detectors should also be installed in living and sleeping areas.

Is the generator electronically governed?

Yes. Electronic governing helps maintain 1800 RPM and stable 60 Hz output as connected electrical demand changes.

Is the engine freshwater cooled?

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

How much fuel does the generator consume?

Westerbeke publishes approximate consumption of 0.74 US gallons per hour at full load and 0.46 US gallons per hour at 50% load. Actual consumption varies with load, condition, fuel quality, installation, and maintenance.

Can the 5.0 MCG 5 replace another marine generator?

Potentially. Compatibility must be confirmed for fuel type, voltage, frequency, output, dimensions, weight, mounting, ventilation, cooling, exhaust, controls, and vessel wiring.

Request Pricing and Availability

The Westerbeke 5.0 MCG 5.0 kW 60 Hz Low-CO Marine Gasoline Generator combines compact dimensions, low-speed 1800 RPM operation, smooth three-cylinder performance, sequential Multiport EFI, electronic governing, a water-cooled returnless fuel system, freshwater cooling, a brushless four-pole alternator, remote operation, and Low-CO marine technology.

Because the model is discontinued, customers should request confirmation of the generator’s condition, serial number, operating hours, EFI-control status, catalyst history, included accessories, warranty coverage, and replacement-parts availability before purchasing.

Contact our marine generator specialists to check the latest Westerbeke 5.0 MCG 5 price, available inventory, worldwide shipping options, and compatibility with your vessel.