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 esponsibility.
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
- Engine Coolant Heater
- Oil Drain Extension
- Air Cleaner
- Level 1 Fan and Belt Guards (Open Set Only)
- Stainless Steel Flexible Exhaust Connection
- Factory Filled Oil and Coolant
- Critical Exhaust Silencer (Open Set Only)
Fuel System
- NPT Fuel Connection on Frame
- Primary and Secondary Fuel Shutoff
Cooling System
- Closed Coolant Recovery System
- UV/Ozone Resistant Hoses
- Factory-Installed Radiator
- 50/50 Ethylene Glycol Antifreeze
- Radiator Drain Extension
Electrical System
- Battery Charging Alternator
- Battery Cables
- Battery Tray
- Rubber-Booted Engine Electrical Connections
- Solenoid Activated Starter Motor
Alternator System
- GENprotect™
- 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 (Enclosed Units Only)
- Standard Factory Testing
- 2 Year Limited Warranty (Standby Rated Units)
- 1 Year Warranty (Prime Rated Units)
- Silencer Mounted in the Discharge Hood (Enclosed Units Only)
Enclousere (If Selected)
- Rust-Proof Fasteners with Nylon Washers to Protect Finish
- High Performance Sound-Absorbing Material (Sound Attenuated Enclosures)
- 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 #: 8
- Type: V
- Displacement - L (In3): 8.9 (540)
- Bore - mm (in): 114.3 (4.49)
- Stroke - mm (in): 107.95 (4.25)
- Compression Ratio: 9.1:1
- Intake Air Method: Turbocharged
- Number of Main Bearings: 5
- Connecting Rods: Forged Steel
- 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 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): 9.5 (10.0)
Cooling System Specifications
- Cooling System Type: Pressurized Closed
- Fan Type: Pusher
- Fan Speed - RPM: 1,988
- Fan Diameter - mm (in): 559 (22)
Fuel System Specifications
- Fuel Type: Natural Gas, Propane Vapor
- Carburetor: Down Draft
- Secondary Fuel Regulator: Standard
- Fuel Shut Off Solenoid: Standard (Dual)
- Standard Operating Fuel Pressure - kPa (in H2O): 2.7 - 3.5 (7 - 11)
Engine Electrical System Specifications
- System Voltage: 12 VDC
- Battery Charger Alternator: Standard
- Battery Size: See Battery Index 0161970SBY
- Battery Voltage: 12 VDC
- Ground Polarity: Negative
