Overview#
The MTU 10V0183 GS350 is a 350 kW natural gas standby generator set built on the Doosan 18.3L CAC — an 18.3-liter, 10-cylinder V-configuration turbocharged and charge-air-cooled spark-ignition engine producing up to 400 kWm gross on natural gas. At 350 kW standby, the GS350 enters the mid-range industrial standby tier and is well suited to large commercial buildings, data center edge applications, and industrial facilities with utility natural gas infrastructure.
On liquid propane vapor, the unit is rated at 245 kW standby — a 30% derating from the NG rating. Dual-fuel capability (NG and LP vapor) is available as a factory option for installations requiring fuel redundancy.
The Bosch electronic isochronous governor provides ±0.5% speed regulation. Standard equipment includes a 24V dual-battery electric start (1,050 CCA per battery), unit-mounted radiator rated for 50°C ambient, and the MTU digital control panel with SAE J1939 communications and NFPA 110 compatibility. The unit is substantial at over 10,000 pounds — structural planning for the pad and installation access routes is essential.
Technical Specifications#
Power Ratings (60 Hz, 1800 rpm)
| Rating | kW | kVA |
|---|---|---|
| Standby — NG | 350 | 437 |
| Prime — NG | 300 | 375 |
| Standby — LP | 245 | 306 |
Engine — Doosan 18.3L CAC
| Parameter | Value |
|---|---|
| Displacement | 18.3 L (1,115 in³) |
| Configuration | 10-cylinder V |
| Aspiration | Turbocharged and charge-air-cooled |
| Rated speed | 1800 rpm |
| Governor | Bosch electronic isochronous, ±0.5% |
| Max gross power (NG) | 400 kWm (536 bhp) |
| Max gross power (LP) | 297 kWm (398 bhp) |
| Emissions | EPA certified, 3-way catalyst |
| Starting | 24V dual-battery, 1,050 CCA each |
Fuel Consumption (natural gas at 1000 BTU/ft³)
| Load | NG Consumption | LP Consumption |
|---|---|---|
| 100% load | 3,499 ft³/hr (99.1 m³/hr) | 1,146 ft³/hr |
| 75% load | 2,727 ft³/hr (77.2 m³/hr) | 977 ft³/hr |
| 50% load | 1,914 ft³/hr (54.2 m³/hr) | 659 ft³/hr |
Physical (Open Power Unit)
| Dimension | Value |
|---|---|
| Length | 4,369 mm (172 in) |
| Width | 2,506 mm (98.63 in) |
| Height | 2,413 mm (95 in) |
| Dry weight | 4,741 kg (10,452 lb) |
Cooling System
| Parameter | Value |
|---|---|
| Radiator ambient rating | 50°C (122°F) |
| Water pump capacity | 660 L/min (174 gpm) |
| Heat rejection to coolant | 365 kW |
Our Service Experience#
The GS350 is a substantial installation — at nearly 18 feet long and over 10,000 pounds, it requires careful access planning for both initial installation and ongoing service. The Doosan 18.3L engine has good field reliability when operated on clean, dry natural gas at consistent pressure, but its size means that any major service event (injector replacement, valve adjustment, turbocharger service) requires dedicated equipment and technician time. Factor this into service contract negotiations.
Gas supply infrastructure at 350 kW is non-trivial: 3,499 ft³/hr at full load requires a dedicated gas service line sized for the generator's demand plus any co-located gas appliances. Work with the gas utility and a licensed plumber/gas engineer to validate supply pressure and flow capacity before installation.
Frequently Asked Questions#
What is the LP derating on the GS350? On liquid propane vapor, the GS350 is rated at 245 kW standby versus 350 kW on natural gas — a 30% reduction. This is consistent with the NG-to-LP derating seen across the MTU gas generator line.
What gas supply infrastructure does the GS350 require? At 100% load, the engine consumes 3,499 ft³/hr of natural gas. This requires a dedicated, appropriately sized gas service. Typical commercial building gas meters may not provide adequate flow for simultaneous generator and building loads — engage a gas engineering firm to size the service.
Can the GS350 be installed indoors? Yes, with appropriate ventilation and exhaust routing. The unit radiates 88.5 kW to ambient at full load — indoor installations require engineered ventilation to maintain equipment room temperature within the 50°C radiator rating.
What is the footprint compared to a diesel unit at 350 kW? The GS350 is significantly larger than a diesel 350 kW unit. The 8V1600 DS350 diesel measures approximately 118 x 74 inches versus the GS350's 172 x 99 inches. Gas units at this power level are inherently larger.
