2019 Generac 150kW Gaseous Generator (9.0L) SG/MG150

Call for Price

150kW Gaseous Generator (9.0L) SG/MG150



Electrical grid outages are becoming more common. And you need to keep operating to ensure cash flow, as well as protect your data, inventory, and equipment. Generac's rugged natural gas generators give you all the backup power you need.

  • Generator Enclosure: Generac manufactures its own enclosures, ensuring each unit combines the highest level of durability, noise reduction, weather resistance, and streamlined design.
  • Generac Spark-Ignited Engine: Generac builds its spark-ignited engines from the block up utilizing advanced engineering expertise.
  • Industrial Alternator: Generac industrial alternators are machine wound, machine inserted, and machine varnished for the ultimate in consistency.
  • PowerManager® Controller: Generac engineers its generator controls with safety and convenience as top priorities.
  • Generator Paralleling: Generac's Modular Power Systems (MPS) boast a rate of up to 99.999% reliability, and are more cost-effective and flexible than single generators with the same load capacity.
Engine Specifications
  • Make: Generac
  • Cylinder #: 8
  • Type: V
  • Displacement - L (Cu In): 8.9L (540)
  • Bore - mm (in): 114.23 (4.49)
  • Stroke - mm (in): 107.15 (4.25)
  • Compression Ratio: 10.5:1
  • Intake Air Method: Turbocharged/Aftercooled
  • Number of Main Bearings: 5
  • Connecting Rods: Forged
  • Cylinder Head: Cast Iron
  • Cylinder Liners: No
  • Ignition: High Energy
  • Piston Type: Aluminum Alloy
  • Crankshaft Type: Forged Steel
  • Lifter Type: Hydraulic Roller
  • Intake Valve Material: Steel Alloy
  • Exhaust Valve Material: Stainless Steel
  • Hardened Valve Seats: Yes
Engine Governing
  • Governor: Electronic
  • Frequency Regulation (Steady State): ±0.25%
Lubrication System
  • Oil Pump Type: Gear
  • Oil Filter Type: Full-Flow Spin-On Cartridge
  • Crankcase Capacity - L (qts) 8.5 (8.0)
Cooling System
  • Cooling System Type: Pressurized Closed
  • Water Pump Flow - gal/min (l/min): 26
  • Fan Type: Pusher
  • Fan Speed (rpm): 2330
  • Fan Diameter - mm (in): 558 (22)
Fuel System
  • Fuel Type: Natural Gas, Propane
  • Carburetor: Down Draft
  • Secondary Fuel Regulator: Standard
  • Fuel Shut Off Solenoid: Standard (Dual)
  • Operating Fuel Pressure (NG/LPV): 7”-11” H2O
  • Operating Fuel Pressure (LPL): 30 - 312 psi
Engine Electrical System
  • System Voltage: 12 VDC
  • Battery Charger Alternator: Standard
  • Battery Size: See Battery Index 0161970SBY
  • Battery Voltage: 12 VDC
  • Ground Polarity: Negative
SG = single unit, gaseous fuel MG = modular/paralleling unit, gaseous fuel



Engine Type
Generac V8
8.9 L (540 cu.in.)


AC Output
150 kW

Related Products