8.0 SBEG – 8.0kW, 60 Hz low-CO Gas Generator

Description

Westerbeke 8.0 SBEG 8.0 kW 60 Hz Low-CO Marine Gasoline Generator

Low-Speed Multiport EFI Power for Houseboats, Yachts and Marine Vessels

The Westerbeke 8.0 SBEG 8.0 kW 60 Hz Low-CO Marine Gasoline Generator is a low-speed, electronically controlled generator developed to provide dependable onboard electricity for gasoline-powered houseboats, motor yachts, sport cruisers, passenger vessels, and other compatible marine applications.

Operating at 1800 RPM, the Westerbeke 8.0 SBEG combines a smooth four-cylinder gasoline engine with sequential multiport electronic fuel injection, electronic governing, a water-cooled returnless fuel system, freshwater cooling, a brushless four-pole alternator, remote-start capability, automatic safety shutdowns, and Low-CO exhaust technology.

The standard 60 Hz configuration produces 8.0 kW at 120/240V, single phase, with a rated current of approximately 66 amps at 120V or 33 amps at 240V. Westerbeke lists the 8.0 SBEG as a four-cylinder, 1800 RPM Multiport EFI marine gasoline generator. (westerbeke.com)

Its electrical capacity may support compatible onboard loads such as:

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

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

Important Fuel-Type Clarification

The Westerbeke 8.0 SBEG is a gasoline or petrol marine generator, not a diesel generator.

It uses sequential multiport electronic fuel injection and must be installed on a vessel with an approved marine gasoline fuel system, ignition-protected electrical components, adequate machinery-space ventilation, suitable carbon-monoxide detectors, and a correctly designed wet-exhaust system.

Correctly identifying the fuel type is essential when planning:

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

The generator cannot be operated using diesel fuel. Installation and servicing should be completed by qualified marine technicians familiar with marine gasoline systems and the applicable safety requirements.

Production and Availability Status

The Westerbeke 8.0 SBEG is no longer in production. Westerbeke continues to provide official technical documentation, wiring diagrams, operator manuals, diagnostic software, service bulletins, parts information, and maintenance components for the model. (westerbeke.com)

Current availability may therefore be limited to:

• 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 Westerbeke 8.0 SBEG, confirm:

• Generator serial number
• Production date
• New, used, surplus, or reconditioned condition
• Total recorded operating hours
• Fuel-system condition
• Catalyst condition
• Included control panel and wiring harness
• Service and maintenance history
• Warranty terms
• Availability of replacement parts

Any advertised Westerbeke 8.0 SBEG 8 price should be evaluated together with the generator’s condition, operating hours, included accessories, catalyst history, warranty coverage, and installation compatibility.

Westerbeke Houseboat Series Engineering

The8.0 SBEG 8 belongs to Westerbeke’s Houseboat Series of Multiport EFI gasoline generators.

The generator was developed for vessels requiring reliable auxiliary power during extended periods away from shore electricity. Westerbeke’s Houseboat Series combines low-speed engine operation, electronic fuel injection, electronic governing, freshwater cooling, and marine-specific electrical protection.

Original standard features included:

• Sequential multiport electronic fuel injection
• Water-cooled returnless fuel system
• Electronic engine governing
• Electronic voltage regulation
• Freshwater engine cooling
• Coolant-recovery tank
• AC output circuit breaker
• 50-amp battery-charging alternator
• Water-injected exhaust elbow
• Belt-driven raw-water pump
• Flexible vibration isolators
• Lubricating-oil drain hose
• One-touch start-and-stop control
• Running-hour meter
• Safety shutdown protection
• Field-convertible 50/60 Hz design

Westerbeke promoted the Houseboat Series for smooth, quiet operation, dependable performance, easy starting, improved fuel delivery, and strong service support.

Smooth Four-Cylinder Gasoline Engine

The Westerbeke 8.0 SBEG 8 is powered by a naturally aspirated, four-cylinder, four-stroke gasoline engine with 89.6 cubic inches or approximately 1.47 litres of displacement.

The engine operates at 1800 RPM in the 60 Hz configuration and develops approximately 24 horsepower. Its low-speed four-cylinder layout is designed to provide smooth power delivery with reduced vibration compared with many smaller, high-speed gasoline generator platforms.

Engine specification	Published value
Number of cylinders	4
Cylinder arrangement	Vertical inline
Engine cycle	Four stroke
Fuel type	Gasoline/petrol
Aspiration	Naturally aspirated
Displacement	89.6 cu. in. / approximately 1.47 L
Bore × stroke	2.97 × 3.23 in.
Engine output	Approximately 24 hp at 1800 RPM
Rated operating speed	1800 RPM
Fuel system	Sequential Multiport EFI
Governor	Electronic
Electrical system	12V DC, negative ground

The combination of four-cylinder operation and 1800 RPM speed makes the 8.0 SBEG 8 particularly suitable for houseboats and cruising vessels where generators may operate for extended periods.

Potential advantages include:

• Smooth engine operation
• Reduced mechanical vibration
• Lower operating frequency than 3600 RPM generators
• Improved onboard comfort
• Better response to changing electrical loads
• Suitability for extended marine service

Westerbeke has documented an earlier 8 kW gasoline generator operating for nearly 18,000 hours in a commercial houseboat fleet with routine maintenance and no reported major repairs, demonstrating the long-term potential of its low-speed four-cylinder platform. This example relates to an earlier 8.0 BEG rather than the SBEG, but it provides relevant historical context for Westerbeke’s houseboat-generator design.

8.0 kW Electrical Output at 60 Hz

The Westerbeke 8.0 SBEG provides 8.0 kW of single-phase electrical output at 60 Hz.

Electrical specification	Published rating
Rated electrical output	8.0 kW
Voltage	120/240V
Rated current	Approximately 66/33 amps
Frequency	60 Hz
Phase	Single phase
Power factor	1.0
Operating speed	1800 RPM
Alternator design	Brushless, four pole

The 120/240V configuration can support compatible North American and other 60 Hz marine electrical systems. The vessel’s neutral arrangement, grounding, circuit protection, transfer switch, and connected appliances should be checked before installation.

Marine Electrical Load Planning

A professional marine electrical load assessment should be completed before purchasing the Westerbeke 8.0 SBEG.

The calculation should include:

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

Electric motors and compressors may temporarily draw several times their normal running current during startup.

A generator may therefore appear large enough when only the running wattages are added together but still experience difficulty when several high-demand loads start simultaneously.

Possible signs of an overloaded or incorrectly sized generator include:

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

Electronic governing improves the generator’s load response, but it cannot compensate for continuous overloading.

Sequential Multiport Electronic Fuel Injection

The 8.0 SBEG 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 of its Multiport EFI system as:

• Easier starting
• Improved fuel efficiency
• Improved reliability
• Reduced normal emissions
• Better response to changing electrical loads
• Advanced diagnostic capability

The EFI system works with electronic speed control to maintain a constant engine speed and reduce the tendency for the engine to bog down when a significant electrical load is applied.

Potential operational benefits include:

• Reliable cold and warm starting
• Precise fuel metering
• Consistent air-to-fuel control
• Reduced hesitation
• Improved high-temperature operation
• Stable response under changing demand
• Electronic troubleshooting support

EC-10 Electronic Diagnostic Support

Westerbeke provides EC-10 diagnostic software for qualified technicians servicing the 8.0 SBEG 8 and other compatible EFI generator models.

The software can display detailed operating parameters and assist technicians when diagnosing EFI, sensor, ignition, control, and generator-performance problems. It requires a compatible computer and Westerbeke’s proprietary interface cable. Westerbeke recommends that the software be used by qualified technicians.

Diagnostic capability can help investigate problems involving:

• Difficult starting
• Unstable engine speed
• EFI sensor faults
• Fuel-delivery problems
• Ignition faults
• Engine-control warnings
• Unexpected shutdowns
• Abnormal emissions
• Load-response problems

The presence of electronic diagnostics does not remove the need for mechanical inspection, fuel-pressure testing, exhaust checks, cooling-system inspection, and proper maintenance.

Water-Cooled Returnless Fuel System

High temperatures inside a vessel’s machinery space may cause gasoline to vaporise, potentially resulting in vapor lock, difficult starting, unstable running, or interrupted fuel delivery.

The Westerbeke 8.0 SBEG 8 uses a water-cooled returnless fuel system designed to help control fuel temperature and improve performance in high ambient conditions.

A properly installed marine gasoline fuel system should include:

• Approved marine gasoline hose
• Correctly sized fuel piping
• Accessible fuel shutoff valve
• Suitable fuel filtration
• Secure and leak-free connections
• Ignition-protected electrical components
• Proper grounding and bonding
• Correct machinery-space ventilation
• Routine fuel-leak inspections

Westerbeke published service information addressing ethanol-blended gasoline and ethanol-related vapor lock for its gasoline-generator range, including the SBEG models. Fuel quality and ethanol content should therefore be considered during operation and storage.

Low-CO Marine Generator Technology

The Westerbeke 8.0 SBEG 8 is a Low-CO marine gasoline generator.

Its EFI control system maintains a carefully regulated air-to-fuel mixture, while the exhaust after-treatment system uses a catalyst to reduce normal carbon-monoxide emissions.

Low-CO does not mean zero carbon monoxide. Gasoline-engine exhaust remains dangerous and potentially fatal.

Carbon monoxide is:

• Colourless
• Odourless
• Tasteless
• Poisonous
• Capable of accumulating inside or around a vessel

A Low-CO generator must still be installed and operated with:

• Approved marine carbon-monoxide detectors
• Correct detector placement
• Adequate machinery-space ventilation
• A leak-free exhaust system
• Correct exhaust-outlet positioning
• Regular catalyst inspection
• Proper fuel- and ignition-system maintenance
• Professional CO testing when required

Westerbeke explains that Low-CO technology reduces generator emissions but stresses that carbon monoxide remains a lethal gas requiring proper detection, ventilation, and exhaust management.

Catalyst and Exhaust-System Maintenance

The catalyst is essential to the generator’s Low-CO performance.

Its effectiveness may be reduced by:

• Seawater intrusion
• Incorrect fuel mixture
• Ignition-system faults
• Contaminated intake air
• Excessive operating hours
• Exhaust overheating
• Physical deterioration

The generator should not be operated with:

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

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

Electronic Governing for Stable Frequency

The 8.0 SBEG 8 uses electronic engine governing to maintain its rated 1800 RPM operating speed as electrical demand changes.

When an air-conditioning compressor, pump, charger, or other substantial load starts, the engine experiences an immediate increase in mechanical resistance. The electronic control system adjusts engine operation to reduce speed loss and maintain stable 60 Hz output.

Westerbeke published frequency regulation of approximately 0.5 Hz, or 1%, from no load to full load for the Houseboat Series platform. 8.0 SBEG 8

Stable frequency supports the operation of compatible:

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

Electronic governing provides improved transient-load response, but the generator must still be correctly sized for the vessel.

Electronic Voltage Regulation

The Westerbeke 8.0 SBEG 8 incorporates electronic voltage regulation.

The published Houseboat Series specification lists voltage regulation of approximately ±2% from no load to full load.

Stable voltage is important for:

• Battery chargers
• Refrigerators
• Air-conditioning controls
• Electric motors
• Navigation electronics
• Communication equipment
• Entertainment systems
• Lighting
• Monitoring equipment

Westerbeke issued service bulletins covering voltage-regulator and wiring changes made during the production life of the SBEG series. The generator’s serial number and installed regulator should therefore be confirmed before ordering electrical replacement parts. 8.0 SBEG 8

Brushless Four-Pole Alternator

The Westerbeke 8.0 SBEG 8 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
• Electronic voltage regulation
• Direct-connected centrifugal cooling blower
• Power take-off provision
• Marine electromagnetic-interference control

The four-pole design allows the generator to produce 60 Hz electricity at 1800 RPM. A two-pole 60 Hz generator would normally need to operate at 3600 RPM.

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

Reliable 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 8.0 SBEG 8 uses a freshwater cooling system with a marine heat exchanger.

Internal coolant circulates through the engine and freshwater-cooled exhaust components. Raw water drawn through the vessel’s seawater intake removes heat through the heat exchanger before being discharged through the water-injected exhaust system.

Published cooling-system data includes:

Cooling specification	Published value
Cooling type	Freshwater with heat exchanger
Cooling-system capacity	Approximately 6 US quarts
Raw-water connection	1 inch
Raw-water pump	Belt driven
Exhaust system	Water injected
Exhaust connection	3 inches

Westerbeke’s Houseboat Series literature lists a six-quart cooling-system capacity, one-inch raw-water connection, and three-inch exhaust-elbow connection for the 8.0 SBEG 8.

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
• Cooling hoses and clamps
• Zinc anodes where fitted
• Exhaust-injection elbow
• Siphon break
• Wet-exhaust hose
• Waterlift muffler

Restricted raw-water flow may cause high exhaust or coolant temperature and activate the generator’s protective shutdown system.

Water-Injected Exhaust System

The 8.0 SBEG 8 uses a water-injected marine exhaust system with a published three-inch internal-diameter exhaust outlet requirement.

The system must be designed to:

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

A siphon break may be required where the water-injection point is near or below the vessel’s loaded waterline.

Incorrect exhaust design may result in:

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

The final exhaust arrangement should be designed by a qualified marine installer using Westerbeke’s approved installation documentation.

Approximate Fuel Consumption

Westerbeke publishes approximate full-load gasoline consumption of 1.0 US gallon per hour for the 8.0 SBEG 8 operating at 1800 RPM.

Operating condition	Approximate consumption
Full electrical load	1.0 US gal/hr
Full electrical load	Approximately 3.8 L/hr

Actual fuel consumption will vary according to:

• Connected electrical load
• Engine condition
• Fuel quality
• Ambient temperature
• Machinery-space ventilation
• EFI-system condition
• Catalyst condition
• Maintenance
• Installation

The vessel’s fuel capacity and expected generator operating hours should be considered when planning extended cruising or houseboat use.

One-Touch Control and Remote Starting

The original Westerbeke 8.0 SBEG 8 package included a simple one-touch start-and-stop control panel with a running-hour meter and LED status indicators.

Standard control features included:

• Start-and-stop control
• Running-hour meter
• Oil-pressure warning
• Engine-temperature warning
• Exhaust-temperature warning
• Overspeed protection
• AC circuit breaker
• Remote-control capability

Optional remote start-and-stop controls allowed the generator to be operated from the helm, saloon, electrical panel, or another convenient location aboard the vessel.

Automatic Safety Shutdowns

The generator incorporates automatic protection for potentially damaging operating conditions.

Published shutdown functions include:

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

The standard control panel provided warning indicators for oil pressure, engine temperature, exhaust temperature, and overspeed conditions.

Automatic shutdowns help protect the engine and generator but do not replace routine inspection of:

• Engine-oil level
• Coolant level
• Raw-water discharge
• Fuel-system connections
• Exhaust components
• Drive belts
• Electrical wiring
• Machinery-space ventilation
• Carbon-monoxide detectors

50-Amp Battery-Charging Alternator

The Westerbeke 8.0 SBEG 8 includes a 50-amp, 12V battery-charging alternator for maintaining the generator’s starting battery while the engine is operating.

Published starting-system specifications include:

Starting-system specification	Published value
Electrical system	12V DC, negative ground
Battery-charging alternator	50 amps
Cold-cranking requirement	Approximately 150 amps
Starting arrangement	Electric and remotely controlled

The starting battery should be:

• Correctly sized
• Properly secured
• Connected with marine-grade cables
• Protected by appropriate battery switching
• Regularly inspected for corrosion
• Maintained at an adequate state of charge

Optional Power Take-Off

Westerbeke’s Houseboat Series literature lists an optional full-torque power take-off mounted at the back of the generator.

With correctly engineered accessories, the PTO may support compatible auxiliary systems such as:

• Hydraulic pumps
• Bow or stern thrusters
• Hydraulic winches
• Small compressors
• Other approved hydraulic loads

Any PTO installation must be professionally designed. Mechanical power used through the PTO reduces the engine power available for electrical production and must not overload the generator engine.

Quiet 1800 RPM Operation

The 8.0 SBEG 8 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 components
• Water-injected exhaust
• Heavy-duty marine construction

Westerbeke described its Houseboat Series generators as smooth and quiet, with four-cylinder engines designed to minimise vibration.

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

Dimensions, Weight and Installation Planning

The Westerbeke legacy model page lists the following approximate dimensions:

Measurement	Published value
Length	32.6 in. / approximately 828 mm
Width	21.8 in. / approximately 554 mm
Height	25.1 in. / approximately 638 mm
Dry weight	438 lb. / approximately 199 kg
Raw-water connection	1 inch
Exhaust connection	3 inches
Lubricating-oil capacity	3.5 US quarts
Cooling-system capacity	6 US quarts

These dimensions and weight are published by Westerbeke for the discontinued 8.0 SBEG model. The approved installation drawing should be used for final foundation design, connection placement, service clearance, and lifting arrangements.

Before installation, confirm:

• Machinery-space dimensions
• Mounting-hole positions
• Generator lifting and removal route
• Routine maintenance access
• 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

Applications of the Westerbeke 8.0 SBEG 8

Houseboats

The generator was specifically developed for houseboat applications requiring dependable electricity for extended operation away from shore power.

It may support compatible:

• Refrigeration
• Battery charging
• Lighting
• Freshwater systems
• Air conditioning
• Electrical outlets
• Entertainment systems
• Galley appliances

Gasoline-Powered Motor Yachts

The 8.0 SBEG 8 may be suitable for yachts whose propulsion engines and onboard fuel system already use gasoline.

Sport Cruisers

Its 1800 RPM operation and 8 kW output may support compatible refrigeration, charging, pumps, electronics, lighting, and comfort systems.

Liveaboard Vessels

The generator may provide electricity for battery banks, freshwater systems, refrigeration, lighting, electrical outlets, entertainment systems, and selected domestic appliances.

Passenger and Hospitality Craft

The 8.0 SBEG 8 may support compatible lighting, refrigeration, communication equipment, pumps, and passenger-service systems.

Marine Generator Replacement

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

Complete Technical Specifications

Specification	Details
Manufacturer	Westerbeke
Model	8.0 SBEG
Generator type	Low-CO Multiport EFI Marine Gasoline Generator
Rated electrical output	8.0 kW
Voltage	120/240V
Frequency	60 Hz
Phase	Single phase
Rated current	Approximately 66/33 amps
Power factor	1.0
Operating speed	1800 RPM
Engine cylinders	Four
Engine configuration	Vertical inline
Engine cycle	Four stroke
Fuel type	Gasoline/petrol
Aspiration	Naturally aspirated
Displacement	89.6 cu. in. / approximately 1.47 L
Bore × stroke	2.97 × 3.23 in.
Engine output	Approximately 24 hp
Fuel system	Sequential Multiport EFI
Fuel cooling	Water-cooled returnless system
Governor	Electronic
Alternator	Brushless, four pole
Voltage regulation	Approximately ±2%
Frequency regulation	Approximately 0.5 Hz
Winding insulation	Class H
Cooling system	Freshwater with heat exchanger
Raw-water pump	Belt driven
Starting system	12V electric, remote
Battery alternator	50 amps
Raw-water connection	1 inch
Exhaust connection	3 inches
Cooling capacity	6 US quarts
Lubricating-oil capacity	3.5 US quarts
Approximate dimensions	32.6 × 21.8 × 25.1 in.
Approximate dry weight	438 lb. / 199 kg
Diagnostic system	Westerbeke EC-10 compatible
Production status	Discontinued

Standard Equipment

Original standard equipment included:

• Four-cylinder gasoline engine
• Sequential Multiport EFI
• Water-cooled returnless fuel system
• Low-CO exhaust system
• Electronic engine governor
• Electronic voltage regulator
• Brushless four-pole alternator
• One-touch start-and-stop panel
• Running-hour meter
• LED warning indicators
• Automatic safety shutdowns
• Freshwater cooling
• Coolant-recovery tank
• AC output circuit breaker
• 50-amp battery-charging alternator
• Water-injected exhaust elbow
• Belt-driven raw-water pump
• Flexible vibration isolators
• Lubricating-oil drain hose
• Belt guard
• Operator’s manual
• Parts documentation

Original Westerbeke literature also stated that the Houseboat Series met applicable United States Coast Guard, CARB, and US EPA requirements and was supplied with a five-year limited warranty. Warranty coverage for any currently available generator must be confirmed based on its serial number, production date, condition, seller, installation, and original registration status.

Optional Equipment

Original optional accessories included:

• Remote start-and-stop panel
• Ship-to-shore transfer switch
• Hydro-Hush muffler
• Anti-siphon valve
• Technical manual
• Onboard spare-parts kit
• Extended-cruising spare-parts kit
• Full-torque power take-off
• Marine hose kit

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

Frequently Asked Questions

Is the Westerbeke 8.0 SBEG 8 a diesel generator?

No. It is a gasoline or petrol marine generator with sequential Multiport EFI and Low-CO exhaust technology.

How much electrical power does it produce?

The generator produces 8.0 kW at 120/240V, 60 Hz and 1800 RPM, with a rated current of approximately 66/33 amps.

Is the generator still manufactured?

No. Westerbeke identifies the 8.0 SBEG 8 as a model that is no longer in production. Parts information and technical documentation remain available.

How many cylinders does the engine have?

The generator uses a naturally aspirated four-cylinder gasoline engine with 89.6 cubic inches of displacement.

Does it use electronic fuel injection?

Yes. It uses sequential Multiport EFI for precise fuel delivery, easy starting, improved reliability, reduced normal emissions, and diagnostic capability.

What does Low-CO mean?

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

Is a carbon-monoxide detector required?

Yes. Functioning marine carbon-monoxide detectors are essential on any vessel using a gasoline generator.

Is the generator electronically governed?

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

Is the engine freshwater cooled?

Yes. It uses freshwater cooling with a marine heat exchanger and a belt-driven raw-water pump.

How much fuel does it consume?

Westerbeke publishes approximate full-load fuel consumption of 1.0 US gallon per hour at 1800 RPM. Actual consumption varies according to load, condition, installation, and maintenance.

Can it replace another 8 kW 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 8.0 SBEG 8.0 kW 60 Hz Low-CO Marine Gasoline Generator combines 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 parts availability before purchasing.

Contact our marine generator specialists to check the latest Westerbeke 8.0 SBEG 8 price, available inventory, shipping options, and compatibility with your vessel.