Lombardini – LMG4000 4KVA

Description

New Lombardini LMG4000 4 kVA Marine Generator For Sale

Compact 4 kVA Marine Power for Yachts, Sailboats and Small Vessels

The New LMG4000 4 kVA Marine Generator is a compact and lightweight marine diesel generator designed to provide dependable onboard electricity for sailing yachts, motorboats, cruising vessels, small commercial craft, and other marine applications where installation space is limited.

Powered by the proven Lombardini 15 LD 350 diesel engine, the LMG4000 combines a compact single-cylinder engine, brushless synchronous alternator, innovative air-water cooling system, remote-control operation, and an integrated soundproof enclosure. Its practical design makes it suitable for boat owners requiring independent electrical power while cruising, remaining at anchor, or operating away from shore-power facilities.

The generator provides 4 kVA or 3.2 kW of electrical output through a single-phase 230V system at 50 Hz. It operates at 3000 RPM and uses a 12V electric-starting system that can be controlled remotely. (Lombardini Marine)

With an approximate enclosed weight of only 90 kg, the LMG4000 provides a useful balance between electrical capacity, compact dimensions, and installation flexibility. (Lombardini Marine)

The generator may support compatible onboard equipment such as:

• Marine battery chargers
• Refrigeration systems
• Navigation electronics
• Communication equipment
• Freshwater pumps
• Lighting circuits
• Entertainment systems
• Small galley appliances
• Electrical outlets
• Vessel-monitoring equipment

Customers evaluating the Lombardini LMG4000 price should consider more than the initial purchase cost. Compact dimensions, low weight, marine cooling, electrical performance, service accessibility, remote monitoring, sound insulation, and long-term maintenance requirements all contribute to the generator’s overall value.

Purpose-Built Lombardini Marine Generator Engineering

The Lombardini Marine LMG generator range is engineered specifically for onboard electrical power generation. Unlike portable generators or conventional industrial power units adapted for installation aboard a vessel, the LMG4000 integrates marine cooling, electrical generation, remote monitoring, automatic engine protection, and acoustic insulation into one compact package.

The generator is designed for marine environments affected by:

• Continuous vessel vibration
• High humidity
• Saltwater exposure
• Restricted machinery-space dimensions
• Changing electrical demand
• Vessel movement and inclination
• Limited access to shore power

The LMG4000 uses the Lombardini 15 LD 350 single-cylinder diesel engine, a compact four-stroke engine recognized for its lightweight construction. The engine uses an aluminium crankcase and cylinder head, helping reduce overall generator weight while maintaining a practical design for small-vessel installations. (Lombardini Marine)

Its compact construction makes the LMG4000 particularly suitable for sailboats, smaller motor yachts, and vessels where machinery-space dimensions and generator weight must be carefully managed.

Selecting the correct boat generator requires more than comparing maximum electrical output. Vessel owners and marine installers should also evaluate normal power demand, equipment startup loads, available installation space, cooling-water supply, exhaust routing, ventilation, fuel-system requirements, and expected operating hours.

Lombardini 15 LD 350 Single-Cylinder Diesel Engine

The LMG4000 is powered by a compact Lombardini 15 LD 350 marine diesel engine designed to provide dependable mechanical power for onboard electricity generation.

The engine configuration includes:

• Single-cylinder construction
• Four-stroke diesel operation
• 349 cm³ displacement
• 4.9 kW engine output
• Lightweight aluminium crankcase
• Aluminium cylinder head
• Air-cooled engine architecture
• 3000 RPM operating speed
• 12V electric starting system

The single-cylinder design helps reduce the generator’s overall dimensions and weight. This makes the LMG4000 suitable for installations where a larger multi-cylinder generator may be impractical.

The engine develops approximately 4.9 kW of mechanical power at its rated operating speed. (Lombardini Marine)

Potential advantages of the compact diesel platform include:

• Reduced installation weight
• Space-efficient engine construction
• Straightforward mechanical servicing
• Familiar diesel-engine technology
• Practical routine maintenance
• Reliable operation when correctly installed

A correctly sized diesel marine generator allows boat owners to operate important electrical equipment while cruising or remaining at anchor without relying continuously on marina electricity.

It may also reduce the need to operate the vessel’s main propulsion engine solely for battery charging or domestic electrical production.

4 kVA and 3.2 kW Electrical Output

The Lombardini LMG4000 provides a rated electrical output of:

Electrical Specification	Rating
Apparent Power	4 kVA
Active Power	3.2 kW
Voltage	230V / 120V
Electrical Configuration	Single Phase
Frequency	50 Hz
Operating Speed	3000 RPM
Starting System	12V Electric Start

The difference between kVA and kW is important when selecting a generator. The 4 kVA rating represents apparent electrical power, while the 3.2 kW rating represents the usable active-power output under the manufacturer’s specified operating conditions. (Lombardini Marine)

The vessel’s normal electrical demand should remain within the generator’s rated capacity while allowing reasonable reserve for temporary increases in load.

Equipment containing electric motors or compressors may require more electricity during startup than during normal operation. This may apply to:

• Refrigeration compressors
• Freshwater pumps
• Seawater pumps
• Battery chargers
• Small air-conditioning equipment
• Electric motors

Selecting a generator that is too small may result in:

• Electrical overload
• Voltage instability
• Difficulty starting motor-driven equipment
• Excessive operating temperature
• Frequent protective shutdowns
• Reduced generator service life

A professional marine electrical load assessment can help determine whether the LMG4000 provides sufficient capacity for the vessel’s expected electrical requirements.

Brushless Synchronous Marine Alternator

The LMG4000 uses a synchronous brushless marine alternator with the electrical windings positioned on the stator. The brushless design reduces the number of wear components associated with conventional brushed alternators and supports practical long-term maintenance.

Lombardini designed the alternator waveform to support the safe operation of sophisticated onboard electronic equipment while also providing suitable electrical input for marine battery chargers. (Lombardini Marine)

Potential advantages include:

• Brushless alternator construction
• Reduced electrical wear components
• Stable onboard power generation
• Suitable output for battery-charging systems
• Compatibility with marine electronics
• Practical long-term servicing

The alternator is cooled as part of the generator’s integrated air-water cooling arrangement. Seawater helps cool the external walls of the alternator stator, supporting reliable electrical production inside confined machinery spaces. (Lombardini Marine)

Stable onboard electricity depends on the complete installation rather than the alternator alone. Correct cable sizing, circuit protection, grounding, load management, and switchboard compatibility all contribute to dependable electrical performance.

Innovative Air-Water Marine Cooling System

One of the distinguishing features of the LMG4000 is its combined air-water marine cooling system.

The Lombardini 15 LD engine uses air cooling, while the generator incorporates a radiator-assisted marine cooling arrangement. Seawater is used to cool:

• Engine lubricating oil
• External alternator-stator surfaces
• Engine intake air

This hybrid cooling design helps maintain compact generator dimensions while managing heat within the machinery space. (Lombardini Marine)

A correctly maintained marine generator cooling system supports:

• Stable operating temperatures
• Efficient heat transfer
• Reliable electrical generation
• Reduced thermal stress
• Protection of generator components
• Longer equipment service life

Routine maintenance should include inspection of:

• Raw-water intake
• Seawater strainer
• Cooling-water flow
• Raw-water hoses
• Hose clamps
• Cooling connections
• Radiator components
• Oil-cooling system
• Wet-exhaust equipment

Restricted seawater flow, blocked strainers, damaged hoses, or inadequate machinery-space ventilation may affect generator cooling and operating reliability.

Where the generator is installed below the vessel’s waterline, the seawater and exhaust arrangement should be evaluated for siphoning risk. A correctly installed siphon break may be required depending on the vessel configuration.

Remote-Control Panel and Automatic Engine Protection

The LMG4000 is supplied with a remote-control box and approximately 10 metres of plug-in connection cable. This allows the generator to be started, stopped, and monitored from a convenient position away from the machinery compartment. (Lombardini Marine)

The control system includes automatic shutdown protection for important operating conditions.

Protection and monitoring functions include:

• Low engine-oil pressure warning
• High cooling-water temperature warning
• Automatic protective shutdown
• Generator output-voltage display
• Electrical output-current display
• Engine-starting battery voltage
• Generator operating-hour display

The operating-hour display helps owners monitor generator usage and plan routine servicing according to the recommended maintenance schedule.

An additional remote-control panel may be available as an option where generator operation is required from more than one location aboard the vessel. (Lombardini Marine)

Automatic protection systems provide valuable operating safeguards but do not replace routine inspection. Oil level, cooling-water flow, fuel supply, ventilation, electrical connections, and exhaust condition should still be checked regularly.

Compact Sound-Enclosed Generator Design

The LMG4000 is designed as a compact soundproof marine generator suitable for installation in machinery spaces where available room is limited.

Its sound enclosure helps reduce airborne diesel-engine and alternator noise reaching cabins, saloons, and other onboard living areas.

The generator has an approximate enclosed dry weight of 90 kg, making it considerably lighter than many larger multi-cylinder marine generator sets. (Lombardini Marine)

Published reference dimensions are approximately:

Measurement	Specification
Length	560 mm
Width	430 mm
Height	520 mm
Enclosed Weight	Approximately 90 kg

Final dimensions should be confirmed against the current model-specific installation drawing before purchase because production specifications and selected equipment may vary.

The sound enclosure is designed to support practical maintenance access. Important routine-service components are positioned so that regular inspections and maintenance can be completed without unnecessarily dismantling the complete generator package. (Nauticexpo PDFs)

Practical Installation for Space-Conscious Vessels

The compact footprint and low weight of the LMG4000 make it suitable for vessels where machinery-space dimensions are restricted.

Before installation, the vessel owner or marine installer should verify:

• Generator dimensions
• Dry and operating weight
• Mounting-point positions
• Service clearances
• Machinery-space ventilation
• Seawater inlet location
• Exhaust-hose routing
• Fuel supply connections
• Electrical cable access
• Remote-panel cable routing
• Lifting and future removal space

The generator is designed with external rubber mounts to simplify installation and reduce vibration transmission into the vessel structure. (Nauticexpo PDFs)

When replacing an existing small marine generator, matching only the electrical output is not sufficient. Voltage, frequency, dimensions, weight, mounting arrangement, cooling requirements, exhaust routing, fuel-system compatibility, and electrical integration should also be reviewed.

A professional installation assessment can reduce unexpected modifications and help ensure dependable long-term operation.

Applications of the Lombardini LMG4000 Marine Generator

Sailing Yachts

The LMG4000 can provide dependable electricity for battery charging, refrigeration, navigation electronics, communication equipment, lighting, pumps, and essential cruising systems.

Small Motor Yachts

The generator may support compatible domestic appliances, refrigeration equipment, charging systems, entertainment equipment, lighting, and electrical outlets.

Cruising Sailboats

Its compact size and low weight make it a practical sailboat generator for vessels requiring independent electrical power during extended cruising.

Liveaboard Boats

The LMG4000 may provide electricity for refrigeration, battery charging, water pumps, lighting, and selected domestic equipment during extended periods away from shore power.

Small Professional Vessels

The generator may serve as a compact commercial marine generator for communication equipment, lighting, battery charging, pumps, and routine operating loads.

Marine Refit Projects

The LMG4000 may be considered when replacing an older, heavier, or unreliable generator, provided the vessel’s electrical and installation requirements are compatible.

Technical Specifications of the Lombardini LMG4000

Specification	Details
Brand	Lombardini Marine
Generator Series	LMG
Generator Model	LMG4000
Generator Category	Marine Diesel Generator
Apparent Power	4 kVA
Active Power	3.2 kW
Voltage	230V / 120V
Frequency	50 Hz
Electrical Configuration	Single Phase
Operating Speed	3000 RPM
Engine Manufacturer	Lombardini
Engine Model	15 LD 350
Engine Configuration	Single Cylinder
Engine Cycle	Four-Stroke Diesel
Engine Displacement	349 cm³
Engine Power	4.9 kW
Starting System	12V Electric Start
Alternator Type	Synchronous Brushless
Alternator Cooling	Water Cooled
Cooling System	Combined Air-Water Cooling
Remote-Control Panel	Standard
Remote Cable	Approximately 10 Metres
Protective Shutdown	Oil Pressure and Water Temperature
Sound Enclosure	Included
Approximate Dimensions	560 × 430 × 520 mm
Approximate Weight	90 kg
Application	Yacht, Sailboat and Small Marine Vessel

The LMG4000 is officially specified with a 4 kVA or 3.2 kW electrical output, a Lombardini 15 LD 350 single-cylinder diesel engine, 349 cm³ displacement, 3000 RPM operation, single-phase voltage, brushless synchronous alternator, and combined air-water cooling system. (Lombardini Marine)

Standard Marine Equipment and Available Options

The Lombardini LMG4000 is supplied as an integrated compact marine generator set designed for practical onboard installation.

Typical standard equipment includes:

• Lombardini 15 LD 350 diesel engine
• Brushless synchronous alternator
• Air-water marine cooling system
• 12V electric-starting system
• Soundproof enclosure
• Remote-control panel
• 10-metre plug-in control cable
• Automatic engine-protection system
• Oil-pressure warning
• Water-temperature warning
• Voltage and current display
• Starting-battery voltage display
• Operating-hour meter
• External anti-vibration mounts

Available installation options may include:

• Additional remote-control panel
• Fuel pre-filter
• Fuel-water separator
• Siphon-break equipment
• Wet-exhaust components
• Additional marine installation accessories

The exact standard equipment and optional package should be confirmed during quotation because production specifications and regional configurations may vary.

Genuine Lombardini Marine Generator Supply and Worldwide Support

Customers looking for the New Lombardini LMG4000 4 kVA Marine Generator for sale can contact our marine generator specialists for current availability, technical guidance, installation information, and international delivery assistance.

We support customers with:

• Genuine Lombardini marine generator supply
• Electrical-load and generator-sizing guidance
• Marine application recommendations
• Replacement-generator assessments
• Technical documentation
• Export documentation
• Worldwide shipping arrangements
• After-sales customer assistance

Whether you are installing a new generator aboard a sailing yacht or replacing an ageing small boat generator, selecting the correct electrical configuration and installation package can reduce installation challenges and improve long-term reliability.

Frequently Asked Questions

What is the Lombardini LMG4000 price?

The Lombardini LMG4000 price depends on current availability, selected installation equipment, shipping destination, export requirements, and delivery arrangements. Contact our team for an updated quotation.

How much electrical power does the LMG4000 provide?

The generator provides 4 kVA or approximately 3.2 kW of electrical power. (Lombardini Marine)

Is the LMG4000 a single-phase generator?

Yes. The LMG4000 is designed as a single-phase marine generator with 230V or 120V output, depending on the selected configuration. (Lombardini Marine)

What engine is used in the LMG4000?

The generator uses a Lombardini 15 LD 350 single-cylinder, four-stroke diesel engine with 349 cm³ displacement and approximately 4.9 kW of engine output. (Lombardini Marine)

What is the operating speed?

The standard 50 Hz LMG4000 operates at 3000 RPM. (Lombardini Marine)

Does the generator include a remote-control panel?

Yes. The generator is supplied with a remote-control panel and approximately 10 metres of plug-in cable. (Lombardini Marine)

Is the Lombardini LMG4000 sound enclosed?

Yes. The generator is supplied in a compact soundproof enclosure designed to reduce airborne operating noise.

Can the LMG4000 operate marine electronics?

The brushless synchronous alternator is designed to provide a suitable electrical waveform for compatible onboard electronic equipment and battery-charging systems. (Lombardini Marine)

Can it replace an existing small marine generator?

Yes. It may be suitable for a marine generator replacement when output, voltage, frequency, dimensions, mounting, cooling, exhaust, fuel, and electrical requirements are compatible.

Is worldwide shipping available?

Yes. We support customers with international marine generator supply, export documentation, and worldwide shipping arrangements.

Request a Quote for the Lombardini LMG4000 Marine Generator

The New Lombardini LMG4000 4 kVA Marine Generator is a practical choice for yacht owners, boat builders, marine installers, and professional operators requiring compact single-phase marine power from a lightweight diesel generator package.

Its 4 kVA output, compact Lombardini 15 LD diesel engine, brushless synchronous alternator, integrated air-water cooling, remote-control system, automatic engine protection, and sound-enclosed design make it suitable for a wide range of small-vessel applications.

Contact our marine generator specialists to request the latest Lombardini LMG4000 price, confirm current availability, review installation requirements, and receive assistance selecting the correct generator configuration for your vessel.