TheMase VS 8.6 Marine Generatoris part of Mase’s revolutionary VS (Variable Speed) range, designed to set a new benchmark for onboard marine power. With 8.6kW of continuous power, this advanced boat generator combines compact size, efficiency, and quiet operation, making it the ideal choice for yachts, sailboats, and commercial vessels.
Unlike traditional generators, theMase VS 8.6does not exchange heat with the engineering space. Instead, it uses a closed cooling circuit with seawater/coolant exchangers to keep the engine, alternator, and inverter at optimal operating temperatures. This system ensures maximum reliability, fuel efficiency, and performance in all environments.
Built in Italy with premium components, the Mase VS 8.6 meets current and future European (Stage V) and U.S. (EPA Tier 4 Final) emission standards, ensuring long-term compliance and environmentally friendly operation.
Key Features of the Mase VS 8.6
8.6kW continuous marine power output
Kubota diesel engine with electronic governor
Permanent Magnet Alternator (PMG) for stable power
Ultra-compact, lightweight design with soundproof cabin
Low vibration and quiet operation (approx. 52 dBA @ 7m)
Stage V / EPA Tier 4 Final compliant for global emissions standards
CBU Digital Control Panel
The advanced CBU Mod-Bus panel offers modern monitoring and control functions:
ON/OFF/START/STOP/MENU buttons
Digital hour-meter, voltage, frequency, and service tracking
Battery monitoring (generator + external pack)
Event list of the last 10 alarms
13 visual alarm icons for fast diagnostics
RS-485 Mod-Bus port for integration with onboard systems
Engine – Kubota Diesel Power
TheMase VS 8.6 generatoris powered by the Kubota Z602 two-cylinder diesel engine. It is engineered for reliability, efficiency, and easy service access.
Engine Model | Kubota Z602 |
Type | Diesel, 4-stroke |
Cylinders | 2 |
Displacement | 599 cc |
Power | 14.5 hp / 10.7 kW |
Rated RPM | 2100 – 3150 |
Lubrication | Forced |
Fuel Pump | Electric |
Fuel Consumption | Approx. 2.5 – 3.0 L/h |
Battery | 12V – 45Ah |
Noise Level | ≈ 52 dBA @ 7m |
Alternator
The VS 8.6 uses a Permanent Magnet Alternator (PMG) cooled by seawater/air intercooler technology.
Type | PMG (Permanent Magnet Generator) |
Cooling | Air/Water (Intercooler W/A) |
Voltage | 115 / 240V |
Frequency | 50 / 60 Hz |
Continuous Power | 8 kW |
Power Factor | 1.0 |
Insulation Class | H |
Voltage Stability | ±1% |
Frequency Stability | ±1% |
Soundproof Cabin
TheMase VS 8.6is enclosed in a lightweight aluminum soundproof cabin that resists marine corrosion. Its design minimizes noise and vibration while allowing easy access for service, even in tight spaces onboard.
Cooling System
The generator uses a closed-circuit seawater/coolant heat exchanger and an additional seawater/air exchanger. This system ensures stable operating temperatures for the engine and alternator, maximizing performance and reliability regardless of room temperature.
Optional Fittings
Exhaust components kit
Siphon break
Water-gas separator kit
Remote starting panel with 10m shielded cable
Slave CBU control panel with 10m shielded cable
TheMase VS 8.6 Marine Generatordelivers compact 8.6kW variable speed power with Kubota diesel reliability and advanced water-cooled efficiency — making it one of the best marine gensets for yachts and boats today.