Powering Ahead
Generac ensures superior quality by designing and manufacturing most of its generator components, such as alternators, enclosures, control systems and communications software. Generac also makes its own spark-ignited engines, and you’ll find them on every
Generac gaseous-fueled generator. We engineer and manufacture them from the block up — all at our facilities throughout Wisconsin. Applying natural gas and LP-fueled engines to generators requires advanced engineering expertise to ensure reliability, durability and necessary performance. By designing specifically for these dry, hotter-burning fuels, the engines last longer and require less maintenance. Building our own engines also means we control every step of the supply chain and delivery process, so you benefit from singlesource responsibility.
Plus, Generac Industrial Power’s distribution network provides all parts and service so you don’t have to deal with third-party suppliers. It all leads to a positive owner experience and higher confidence level. Generac spark-ignited engines give you more options in commercial and industrial generator applications as well as extended run time from utility-supplied natural gas.
Engine System
- Oil Drain Extension
- Air Cleaner
- Level 1 Fan and Belt Guards (Open Set Only)
- Stainless Steel Flexible Exhaust Connection
- Radiator Duct Adapter (Open Set Only)
- Factory Filled Oil and Coolant
- Critical Exhaust Silencer (Enclosed Units Only)
- Oil Temperature Indication and Alarm
Fuel System
- NPT Fuel Connection on Frame
- Primary and Secondary Fuel Shutoff
Cooling System
- Closed Coolant Recovery System
- UV/Ozone Resistant Hoses
- Radiator Drain Extension
- Factory-Installed Radiator
- 50/50 Ethylene Glycol Antifreeze
Electrical System
- Battery Charging Alternator
- Battery Cables
- Battery Tray
- Solenoid Activated Starter Motor
- Rubber-Booted Engine Electrical Connections
Alternator System
- GENprotect™
- Main Line Circuit Breaker
- Class H Insulation Material
- 2/3 Pitch
- Skewed Stator
- Permanent Magnet Excitation
- Sealed Bearing
- Amortisseur Winding
- Full Load Capacity Alternator
Generator Set
- Internal Genset Vibration Isolation
- Separation of Circuits - High/Low Voltage
- Separation of Circuits - Multiple Breakers
- Wrapped Exhaust Piping
- Standard Factory Testing
- 2 Year Limited Warranty (Standby Rated Units)
- 1 Year Limited Warranty (Prime Rated Units)
- Silencer Mounted in the Discharge Hood (Enclosed Units Only)
- Ready to Accept Full Load in <10 Seconds
Enclousere (If Selected)
- Rust-Proof Fasteners with Nylon Washers to Protect Finish
- High Performance Sound-Absorbing Material
- Gasketed Doors
- Upward Facing Discharge Hoods (Radiator and Exhaust)
- Stainless Steel Lift Off Door Hinges
- Stainless Steel Lockable Handles
- RhinoCoat™ - Textured Polyester Powder Coat Paint
Engine Specifications
- Make: Generac
- Cylinder #: 6
- Type: Inline
- Displacement - L (in3): 14.2 (864.71)
- Bore - mm (in): 135 (5.31)
- Stroke - mm (in): 165 (6.50)
- Compression Ratio: 9.5:1
- Intake Air Method: Turbocharged/Aftercooled
- Number of Main Bearings: 7
- Connecting Rods: Carbon Steel
- Cylinder Head: Cast Iron GT250, OHV
- Cylinder Liners: Ductile Iron
- Ignition: Electronic
- Piston Type: Aluminum
- Crankshaft Type: Ductile Iron
- Lifter Type: Solid
- Intake Valve Material: Special Heat-Resistant Steel
- Exhaust Valve Material: High Temp Steel Alloy
- Hardened Valve Seats: High Temp Steel Alloy
Engine Governing Specifications
- Governor: Electronic
- Frequency Regulation (Steady State): ±0.25%
Lubrication System Specifications
- Oil Pump Type: Gear Driven
- Oil Filter Type: Full-Flow Spin-On Cartridge
- Crankcase Capacity - L (qt): 34.3 (36.2)
Cooling System Specifications
- Cooling System Type: Pressurized Closed Recovery
- Fan Type: Pusher
- Fan Speed - RPM: 1,894
- Fan Diameter - mm (in): 762 (30)
Fuel System Specifications
- Fuel Type: Natural Gas
- Carburetor: Down Draft
- Secondary Fuel Regulator: Standard
- Fuel Shut Off Solenoid: Standard
- Operating Fuel Pressure (Standard) - kPa (in H2O): 1.7 - 2.7 (7 - 11)
Engine Electrical System Specifications
- System Voltage: 24 VDC
- Battery Charger Alternator: 57.5 A
- Battery Size: See Battery Index 0161970SBY
- Battery Voltage: (2) - 12 VDC
- Ground Polarity: Negative
