9.5 MCGA – 9.5 kW, 60 Hz low-CO Gas Generator

Description

Here is the complete publishable product description for the Westerbeke 9.5 MCGA 9.5 Low-CO Marine Generator.

Westerbeke 9.5 MCGA 9.5 kW 60 Hz Low-CO Marine Gasoline Generator

Compact, Low-Speed Multiport EFI Power for Marine Applications

The Westerbeke 9.5 MCGA 9.5 kW 60 Hz Low-CO Marine Gasoline Generator is a compact, electronically controlled generator developed to provide dependable onboard electricity for gasoline-powered motor yachts, sport cruisers, houseboats, passenger vessels, and other compatible marine applications.

Delivering 9.5 kW at 120/240V, 60 Hz and 1800 RPM, the Westerbeke 9.5 MCGA combines a smooth four-cylinder industrial engine with sequential multiport electronic fuel injection, electronic governing, a water-cooled returnless fuel system, freshwater cooling, a brushless four-pole alternator, remote starting, automatic safety shutdowns, and Low-CO exhaust technology.

The standard 9.5 MCGA 9.5-614 configuration provides approximately 79.1 amps at 120V or 39.5 amps at 240V. Its low-profile dimensions make it suitable for installations where available machinery-space height and width are limited but dependable auxiliary output is still required.

Its electrical capacity may support compatible onboard systems such as:

• Marine air-conditioning systems
• Refrigerators and freezers
• Battery chargers and inverter-chargers
• Freshwater and seawater pumps
• Water makers
• Navigation and communication electronics
• Cabin and deck lighting
• Entertainment systems
• Electrical outlets
• Galley appliances
• Other compatible hotel and auxiliary loads

Actual suitability depends on the vessel’s continuous electrical demand, compressor and electric-motor starting current, simultaneous appliance use, distribution voltage, and required operating reserve.

Important Fuel-Type Clarification

The Westerbeke 9.5 MCGA 9.5 is a gasoline or petrol marine generator, not a diesel generator.

It uses sequential multiport electronic fuel injection and must be installed aboard a vessel with a properly engineered marine gasoline fuel system, approved fuel hoses, ignition-protected electrical components, adequate machinery-space ventilation, carbon-monoxide detectors, and a compliant wet-exhaust arrangement. 9.5 MCGA 9.5

Correctly identifying the generator’s fuel type is essential when planning:

• Fuel-tank compatibility
• Fuel-hose selection
• Fuel filtration
• Machinery-space ventilation
• Ignition-protected electrical systems
• Fire and explosion protection
• Exhaust routing
• Carbon-monoxide detection
• Applicable marine installation standards

The generator cannot be operated using diesel fuel. Installation and servicing should be completed by qualified marine technicians familiar with marine gasoline systems and Westerbeke EFI generators. 9.5 MCGA 9.5

Production and Availability Status

The Westerbeke 9.5 MCGA 9.5 is no longer in production. Westerbeke’s current model record continues to provide official advanced specifications, operator and parts manuals, wiring diagrams, installation drawings, service bulletins, diagnostic-software information, and common maintenance-part references.

Available generators may therefore consist of:

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

Before purchasing an available Westerbeke 9.5 MCGA 9.5, confirm:

• Generator serial number
• Production date
• New, surplus, used, or reconditioned condition
• Total operating hours
• EFI and electronic-control condition
• Catalyst and exhaust-system condition
• Included control panel and wiring harness
• Included optional enclosure
• Maintenance history
• Warranty terms
• Replacement-parts availability

Any advertised Westerbeke 9.5 MCGA 9.5 price should be considered together with the unit’s condition, operating hours, included accessories, service records, catalyst history, and installation compatibility.

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

Westerbeke developed the 9.5 MCGA 9.5 as a compact, low-speed gasoline generator capable of delivering substantial electrical output without using the 3600 RPM speed common to many smaller marine gasoline generators.

The generator operates at an electronically controlled 1800 RPM. Its lower operating speed, heavy-duty industrial base engine, low-profile construction, and marine-specific systems were designed to deliver smooth, quiet, and reliable performance in restricted machinery spaces. 9.5 MCGA 9.5

Principal design features include:

• Four-cylinder industrial gasoline engine
• Sequential multiport electronic fuel injection
• Water-cooled returnless fuel system
• Electronic engine governing
• Low-CO exhaust technology
• Freshwater cooling with heat exchanger
• Freshwater-cooled exhaust manifold
• Water-injected exhaust elbow
• Belt-driven raw-water pump
• Brushless four-pole alternator
• One-touch start-and-stop control
• Remote-control capability
• Automatic warnings and shutdowns
• AC output circuit breaker
• Vibration isolators
• Remote lubricating-oil filter
• Optional ventilated enclosure

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

Smooth Four-Cylinder Gasoline Engine

The Westerbeke 9.5 MCGA 9.5 uses a naturally aspirated, four-cylinder, four-stroke gasoline engine with 64.1 cubic inches or approximately 1.051 litres of displacement.

The engine develops approximately 16.8 horsepower at 1800 RPM. Its construction includes an aluminium cylinder head, cast-iron cylinder block, forged crankshaft supported by four main bearings, overhead rotating valves, and a semi-spherical combustion chamber.

Engine specification	Published value
Number of cylinders	4
Cylinder arrangement	Vertical inline
Engine cycle	Four stroke
Fuel type	Gasoline/petrol
Aspiration	Naturally aspirated
Displacement	64.1 cu. in. / 1.051 L
Bore × stroke	2.58 × 3.07 in.
Compression ratio	9.0:1
Rated output	Approximately 16.8 hp
Rated operating speed	1800 RPM
Combustion system	Semi-spherical
Fuel system	Sequential Multiport EFI
Governor	Electronic
Electrical system	12V DC, negative ground

The four-cylinder configuration provides smoother power delivery than many compact twin- or three-cylinder generator platforms. Combined with low-speed operation and electronic governing, it helps reduce noticeable vibration and changes in engine speed as electrical demand increases.

9.5 kW Electrical Output at 60 Hz

The Westerbeke 9.5 MCGA 9.5-614 produces 9.5 kW of single-phase electrical power at 60 Hz.

Electrical specification	Published rating
Generator model	9.5 MCGA-614
Rated electrical output	9.5 kW
Voltage	120/240V
Rated current	79.1/39.5 amps
Frequency	60 Hz
Phase	Single phase
Number of wires	Four
Power factor	1.0
Operating speed	1800 RPM
Starting arrangement	Remote

The 120/240V configuration is suitable for compatible North American and other 60 Hz marine electrical systems. The vessel’s neutral arrangement, grounding, circuit protection, shore-power transfer system, and connected appliances must be checked before installation.

Marine Electrical Load Planning

A professional marine electrical load calculation should be completed before selecting the Westerbeke 9.5 MCGA 9.5.

The calculation should account for:

• Continuous electrical demand
• Air-conditioning compressor startup
• Refrigerator and freezer compressor startup
• Freshwater-pump starting current
• Seawater-pump starting current
• Battery-charger demand
• Water-maker consumption
• Galley-appliance loads
• Lighting and entertainment systems
• Simultaneous equipment operation
• Planned electrical additions
• Desired generator reserve

Electric motors and compressors may temporarily require considerably more current during startup than during normal operation.

A generator may therefore appear correctly sized when only running wattage is considered but still experience difficulty when several high-demand systems start simultaneously.

Possible signs of generator overloading include:

• Voltage reduction
• Frequency instability
• Difficulty starting compressors
• Engine bogging
• Unstable lighting
• Excessive heat
• Circuit-breaker operation
• Automatic shutdowns

Electronic governing improves transient-load performance but cannot compensate for continuous overloading or incorrect generator sizing.

Field-Convertible 50 and 60 Hz Platform

The Westerbeke 9.5 MCGA shares its platform with the corresponding 7.6 MCGA 50 Hz generator.

Configuration	Output	Voltage	Frequency	Speed
9.5 MCGA-614	9.5 kW	120/240V	60 Hz	1800 RPM
7.6 MCGA-514	7.6 kW	230V	50 Hz	1500 RPM

Westerbeke originally described the generator as field-convertible between 50 and 60 Hz. Conversion affects engine speed, rated output, voltage connections, control settings, circuit protection, frequency, and compatibility with the vessel’s appliances.

Any conversion should be performed by a qualified Westerbeke technician using approved technical procedures.

Sequential Multiport Electronic Fuel Injection

The 9.5 MCGA 9.5 uses sequential multiport electronic fuel injection, commonly referred to as Multiport EFI or MPI.

Unlike a conventional carburettor, the EFI system electronically controls fuel delivery to the engine’s intake ports. Westerbeke identifies the principal benefits as efficient fuel delivery, easier starting, improved reliability, reduced normal emissions, and advanced diagnostic capability.

Potential benefits include:

• Easier cold and warm starting
• Precise fuel metering
• Consistent air-to-fuel control
• Improved response to changing electrical loads
• Reduced fuel-related hesitation
• Improved high-temperature operation
• Electronic fault diagnosis
• Reduced normal exhaust emissions

The EFI system works with electronic speed control to help prevent the engine from bogging down when substantial electrical loads are connected.

EC-11 Electronic Diagnostic Support

Westerbeke provides EC-11 diagnostic software for qualified technicians working on compatible EFI generators, including the 9.5 MCGA family.

The software provides detailed operating information that may assist with diagnosing:

• EFI sensor faults
• Fuel-delivery problems
• Electronic-governor issues
• Difficult starting
• Unstable engine speed
• Ignition-system faults
• Unexpected shutdowns
• Abnormal load response

Westerbeke recommends that its proprietary diagnostic software be used by qualified technicians.

Electronic diagnostics do not replace mechanical inspection, fuel-pressure testing, cooling-system checks, exhaust inspection, or routine maintenance.

Water-Cooled Returnless Fuel System

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

The Westerbeke 9.5 MCGA 9.5 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 fuel shutoff valve
• Suitable gasoline filtration
• Secure and leak-free fittings
• Correct 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 Low-CO Technology

The 9.5 MCGA 9.5 is a Low-CO marine gasoline generator.

Its electronically controlled fuel system helps maintain the correct air-to-fuel ratio, while exhaust after-treatment reduces normal carbon-monoxide emissions. Westerbeke describes its Low-CO generators as producing dramatically lower CO emissions than conventional marine gasoline generator designs.

Low-CO does not mean zero carbon monoxide.

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 and leak-free exhaust system
• Correct exhaust-outlet positioning
• Routine catalyst and exhaust inspection
• Proper fuel- and ignition-system maintenance
• Professional CO testing where required

Low-CO technology reduces emissions but does not make gasoline exhaust safe to breathe.

Catalyst and Exhaust-System Inspection

The exhaust after-treatment system is important to the generator’s Low-CO performance.

Its effectiveness may be affected by:

• Seawater intrusion
• Incorrect fuel mixture
• Ignition-system faults
• Electronic-control faults
• Contaminated intake air
• Exhaust overheating
• Catalyst deterioration
• Exhaust leaks

The generator should not be operated with:

• A damaged catalyst
• A leaking exhaust connection
• A corroded water-injection elbow
• A faulty EFI component
• An inoperative carbon-monoxide detector
• Evidence of seawater entering the engine or exhaust system

The catalyst, exhaust elbow, muffler, exhaust hose, clamps, siphon break, and discharge outlet should be inspected according to the applicable Westerbeke service documentation.

Electronic Governing for Stable Frequency

The Westerbeke 9.5 MCGA 9.5 uses an electronic engine governor to help maintain the correct 1800 RPM speed as connected electrical demand changes.

When an air-conditioning compressor, pump, battery charger, or other substantial load starts, the engine experiences an immediate increase in mechanical demand. The electronic governor adjusts engine operation to minimise speed reduction and maintain stable 60 Hz power.

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

Stable frequency supports compatible:

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

Brushless Four-Pole Alternator

The Westerbeke 9.5 MCGA 9.5 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 servicing associated with carbon brushes, while Class H insulation provides thermal protection for the windings.

Reliable onboard electrical performance still depends on correct:

• AC cable sizing
• Circuit protection
• Grounding and bonding
• Neutral configuration
• Shore-power transfer switching
• Cable separation
• Ventilation
• Load management

Freshwater Cooling with Marine Heat Exchanger

The Westerbeke 9.5 MCGA 9.5 uses a freshwater cooling system with a marine heat exchanger.

Internal coolant circulates through the cylinder block, aluminium cylinder head, and freshwater-cooled exhaust manifold. Raw water drawn through the vessel’s seawater intake removes heat through the heat exchanger before being discharged through the water-injected exhaust system.

The cooling arrangement includes:

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

The published cooling-system capacity is approximately 4.75 US quarts or 4.5 litres.

Routine cooling-system maintenance should include inspection of:

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

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

Water-Injected Marine Exhaust

The 9.5 MCGA 9.5 uses a water-injected marine exhaust system with a published two-inch exhaust-elbow connection.

The exhaust system must be designed to:

• Carry exhaust safely outside the vessel
• Control exhaust temperature
• Prevent excessive back pressure
• Prevent seawater from entering the engine
• Reduce carbon-monoxide accumulation
• Prevent vessel flooding

An approved anti-siphon valve may be required where the exhaust water-injection point is near or below the vessel’s loaded waterline.

Incorrect exhaust design can cause:

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

The final arrangement should be designed by a qualified marine installer using the approved Westerbeke installation drawing.

Approximate Fuel Consumption

Westerbeke publishes the following approximate fuel-consumption figures for the 9.5 MCGA 9.5 operating at 1800 RPM:

Generator load	Approximate gasoline consumption
100% load	1.24 US gal/hr / 4.68 L/hr
75% load	1.02 US gal/hr / 3.85 L/hr
50% load	0.79 US gal/hr / 3.00 L/hr
25% load	0.59 US gal/hr / 2.25 L/hr

Actual fuel consumption will vary with connected load, engine condition, gasoline quality, ambient temperature, ventilation, installation, EFI-system condition, and maintenance.

One-Touch Control and Remote Starting

The Westerbeke 9.5 MCGA 9.5 was supplied with a straightforward one-touch start-and-stop control panel incorporating a running-hour meter and annunciation-light strip.

The original control and protection package included:

• Start-and-stop control
• Running-hour meter
• Warning-annunciation lights
• Electronic engine control
• AC output circuit breaker
• Automatic safety shutdowns
• Remote-control capability

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 generator monitors potentially damaging operating conditions and can shut down automatically when a serious fault is detected.

Published protection includes:

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

These systems help protect the engine and generator but do not replace routine inspection of oil, coolant, raw-water flow, fuel connections, exhaust components, ventilation, and electrical wiring.

Starting System and Battery Charging

The 9.5 MCGA 9.5 uses a 12V, 1.4 kW electric starting motor and an integral battery charger.

Starting-system specification	Published value
Electrical system	12V DC, negative ground
Starting motor	12V, 1.4 kW
Minimum cranking requirement	Approximately 120 amps at 70°F
Integral battery charger	12 amps
Starting arrangement	Remote

The generator’s starting battery should be correctly sized, properly secured, connected with marine-grade cables, and protected by suitable battery switching and circuit protection.

Smooth and Quiet 1800 RPM Operation

The Westerbeke 9.5 MCGA 9.5 combines several features intended to reduce operating noise and vibration:

• Low-speed 1800 RPM operation
• Smooth four-cylinder engine
• Electronic governing
• Flexible vibration isolators
• Freshwater-cooled exhaust manifold
• Water-injected exhaust system
• Heavy-duty industrial construction

Westerbeke described the four-cylinder 1800 RPM generator as extremely smooth and quiet compared with higher-speed 3600 RPM gasoline generator designs.

Final onboard sound levels also depend on:

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

Optional Westerbeke Ventilated Enclosure

The Westerbeke 9.5 MCGA 9.5 was available with an optional ventilated enclosure, commonly known as a Venclosure.

Enclosure measurement	Published specification
Length	34.0 in. / 863 mm
Width	22.6 in. / 573 mm
Height	19.5 in. / 494 mm
Approximate weight	30 lb. / 14 kg

Westerbeke specified that the enclosure was not sold separately and therefore normally needed to be ordered with the generator.

The enclosure provides a finished protective installation while maintaining airflow around the generator. It does not replace correctly engineered machinery-space ventilation or ignition-protected blower arrangements.

Because the MCGA is discontinued, availability of a new enclosure or individual enclosure components should be confirmed before purchase.

Dimensions, Weight and Installation Planning

The Westerbeke 9.5 MCGA 9.5 has the following published base-generator dimensions:

Measurement	Published specification
Length	31.50 in. / approximately 800 mm
Width	18.50 in. / approximately 470 mm
Height	18.10 in. / approximately 460 mm
Dry weight	445 lb. / 201.9 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	4.1 US qt / 3.9 L
Cooling-system capacity	4.75 US qt / 4.5 L
Maximum operating angle	25° in all directions

The manufacturer states that general drawings are for reference and should not be used as final installation drawings. The approved model-specific drawing should be used when fabricating foundations and positioning fuel, seawater, exhaust, electrical, and control connections.

Before installation, confirm:

• Machinery-space dimensions
• Mounting-hole positions
• Lifting and removal route
• Routine service access
• Fuel-system compatibility
• Ignition-protected ventilation
• Raw-water intake arrangement
• Anti-siphon requirements
• Wet-exhaust routing
• Starting-battery cable size
• AC output cable size
• Grounding and bonding
• Shore-power transfer switching
• Carbon-monoxide detector placement
• Optional enclosure clearance

Applications of the Westerbeke 9.5 MCGA 9.5

Gasoline-Powered Motor Yachts

The generator is suitable for compatible vessels whose propulsion engines and onboard fuel-storage systems already use gasoline.

Sport Cruisers

Its compact height and 1800 RPM operation make it suitable for cruisers requiring power for air conditioning, refrigeration, charging, pumps, lighting, electronics, and comfort systems.

Houseboats and Liveaboard Vessels

The 9.5 MCGA 9.5 may support compatible refrigerators, freshwater systems, battery banks, lighting, outlets, entertainment systems, air conditioning, and galley appliances.

Passenger and Hospitality Craft

The generator may provide auxiliary electricity for lighting, refrigeration, communication systems, pumps, galley services, and passenger-comfort loads.

Marine Generator Replacement

The 9.5 MCGA 9.5 may replace an older gasoline generator when its fuel type, voltage, frequency, output, dimensions, weight, ventilation, cooling, exhaust, controls, and vessel wiring are compatible.

Complete Technical Specifications

Specification	Details
Manufacturer	Westerbeke
Model	9.5 MCGA-614 Low-CO
Generator type	Multiport EFI Marine Gasoline Generator
Rated output	9.5 kW
Voltage	120/240V
Frequency	60 Hz
Phase	Single phase
Rated current	79.1/39.5 amps
Number of wires	Four
Power factor	1.0
Operating speed	1800 RPM
Engine cylinders	Four
Engine configuration	Vertical inline
Engine cycle	Four stroke
Aspiration	Naturally aspirated
Displacement	64.1 cu. in. / 1.051 L
Bore × stroke	2.58 × 3.07 in.
Compression ratio	9.0:1
Engine output	Approximately 16.8 hp
Fuel system	Sequential Multiport EFI
Fuel cooling	Water-cooled returnless system
Low-CO system	Electronic fuel control with exhaust after-treatment
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	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
Lubricating-oil capacity	4.1 qt / 3.9 L
Cooling capacity	4.75 qt / 4.5 L
Approximate dimensions	31.5 × 18.5 × 18.1 in.
Approximate dry weight	445 lb. / 201.9 kg
Maximum operating angle	25° in all directions
Diagnostic system	Westerbeke EC-11 compatible
Optional enclosure	Westerbeke Venclosure
Production status	Discontinued

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

Standard Equipment

Original standard equipment included:

• Four-cylinder gasoline engine
• Sequential Multiport EFI
• Water-cooled returnless fuel system
• Low-CO exhaust technology
• Electronic engine governor
• One-touch start-and-stop panel
• Running-hour meter
• Annunciation-light strip
• Automatic safety shutdowns
• Freshwater cooling
• Coolant-recovery tank
• AC output circuit breaker
• 12-amp battery charger
• Water-injected exhaust elbow
• Belt-driven raw-water pump
• Flexible vibration isolators
• Remote lubricating-oil filter
• Lubricating-oil drain hose
• Belt guard
• Operator’s manual
• Parts documentation

Original literature stated compliance with applicable US Coast Guard, CARB, US EPA, and CE requirements and advertised a five-year limited warranty. Warranty coverage for any generator currently offered for sale must be confirmed according to its serial number, condition, original registration, commissioning history, and seller’s terms.

Optional Equipment

Original optional accessories included:

• Remote start-and-stop controls
• Ventilated enclosure
• Rear-exhaust arrangement
• 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

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

Frequently Asked Questions

Is the Westerbeke 9.5 MCGA 9.5 a diesel generator?

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

How much electrical power does it produce?

The generator produces 9.5 kW at 120/240V, 60 Hz and 1800 RPM, with a rated current of approximately 79.1/39.5 amps.

Is the Westerbeke 9.5 MCGA 9.5 still manufactured?

No. Westerbeke currently identifies the 9.5 MCGA 9.5 as a model that is no longer in production. Technical documents, parts information, diagnostic software, and common maintenance-part references remain available.

How many cylinders does the engine have?

The generator uses a naturally aspirated four-cylinder gasoline engine with approximately 1.051 litres of displacement.

Does it use electronic fuel injection?

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

What does Low-CO mean?

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

Is the generator electronically governed?

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

Is the engine freshwater cooled?

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

Is a ventilated enclosure available?

The generator was originally offered with an optional Westerbeke Venclosure. Because the MCGA is discontinued, current enclosure availability should be confirmed.

How much fuel does the generator consume?

Westerbeke published approximate gasoline consumption of 1.24 US gallons per hour at full load and 0.79 US gallons per hour at 50% load. Actual consumption depends on generator condition, connected load, installation, and maintenance.

Can the 9.5 MCGA 9.5 replace another marine generator?

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

Request Pricing and Availability

The Westerbeke 9.5 MCGA 9.5 kW 60 Hz Low-CO Marine Gasoline Generator combines compact dimensions, low-speed 1800 RPM operation, smooth four-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 this model is discontinued, customers should request confirmation of the generator’s condition, serial number, operating hours, EFI-control status, catalyst condition, included accessories, maintenance history, warranty coverage, and replacement-parts availability before purchasing.

Contact our marine generator specialists to check the latest Westerbeke 9.5 MCGA 9.5 price, available inventory, shipping arrangements, and compatibility with your vessel.