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 single-source 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 sparkignited engines give you more options in commercial and industrial generator applications as well as extended run time from utility-supplied natural gas.
- Oil Drain Extension
- Heavy Duty Air Cleaner
- Fan Guard
- Stainless Steel Flexible Exhaust Connection
- Factory Filled Oil and Coolant
- Critical Exhaust Silencer (Enclosed Only)
- Fuel Line - NPT Connection
- Primary and Secondary Fuel Shutoff
- Closed Coolant Recovery System
- UV/Ozone Resistant Hoses
- Factory-Installed Radiator
- 50/50 Ethylene Glycol Antifreeze
- Battery Charging Alternator
- Battery Cables
- Battery Tray
- Rubber-Booted Engine Electrical Connections
- Solenoid Activated Starter Motor
- GENprotect™
- Class H Insulation Material
- 2/3 Pitch
- Skewed Stator
- Permanent Magnet Excitation
- Sealed Bearing
- Amortisseur Winding
- Full Load Capacity Alternator
- Internal Genset Vibration Isolation
- Separation of Circuits - High/Low Voltage
- Separation of Circuits - Multiple Breakers
- Wrapped Exhaust Piping (Enclosed Only)
- Standard Factory Testing
- 2 Year Limited Warranty (Standby Rated Units)
- 1 Year Limited Warranty (Prime Rated Units)
- Silencer Mounted in the Discharge Hood (Enclosed Only)
- Rust-Proof Fasteners with Nylon Washers to Protect Finish
- High Performance Sound-Absorbing Material (Sound Attenuation Enclosures)
- Gasketed Doors
- Stamped Air-Intake Louvers
- Upward Facing Discharge Hoods (Radiator and Exhaust)
- Stainless Steel Lift Off Door Hinges
- Stainless Steel Lockable Handles
- RhinoCoat™ - Textured Polyester Powder Coat Paint
- Make: Generac
- Cylinder #: 6
- Type: Inline
- Displacement - L (in3): 14.17 (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
- Governor: Electronic
- Frequency Regulation (Steady State): ±0.25%
- Oil Pump Type: Gear
- Oil Filter Type: Full-Flow Spin-On Cartridge
- Crankcase Capacity - L (qt): 34.3 (36.2)
- Cooling System Type: Pressurized Closed Recovery
- Fan Type: Pusher
- Fan Speed - rpm: 1,581
- Fan Diameter - mm (in): 762 (30)
- Fuel Type: Natural Gas
- Carburetor: Down Draft
- Secondary Fuel Regulator: Standard
- Fuel Shut Off Solenoid: Standard
- Operating Fuel Pressure (kPa): in H2O 1.7 - 2.7 (7 - 11)
- System Voltage: 24 VDC
- Battery Charger Alternator: Standard
- Battery Size: See Battery Index 0161970SBY
- Battery Voltage: (2) - 12 VDC
- Ground Polarity: Negative
Additional information
| Engine | Engine Type Generac 6 cylinders Inline Displacement 864.71 cu. in. (14.17 L) |
|---|---|
| Dimensions | Length 154.4 in. (3,909 mm) Width 54 in. (1,371 mm) Height 69.8 in. (1,772 mm) Weight Steel: 6,422 lb. (2,913 kg); Aluminum: 5,956 lb. (2,702 kg) |





