Performance meets value. Briggs and Stratton 18kW Generator PowerProtect Home Standby Generator feature Vanguard Commercial-Grade Engine for unmatched Top-Tier performance and NGMax™ technology providing more power on natural gas than the competitors. With the longest and most comprehensive standard warranty² in the industry, you can rest assured that your generator will provide years of worry-free performance and protection from power interruptions. Shield yourself from power outages and the expense of outage related damages by harnessing the reliability of a PowerProtect Generator. Elevate the value of your home and your everyday life with the unparalleled peace of mind it brings.

 

Briggs and Stratton 18kW Generator Features

Highest Rated Power Output on Natural Gas

Engineered with NGMax for superior power and performance with convenient hookups for both liquid propane and natural gas.

Corrosion Protection

Reinforced, corrosion-resistant aluminum enclosures and bases with Dura-Zen™ coating for a long-lasting, attractive appearance.

Assembled and Engineered in USA

Briggs & Stratton Generators are proudly designed and assembled in the USA, ensuring high-quality standards and superior craftsmanship.

Vanguard Commercial-Grade Engine

Designed for reliable, continuous performance – from the engine experts at Briggs & Stratton.

Superior Motor Starting

Best motor starting in the industry² to ensure smooth operation of your large appliances during startup. More power² than the competition.

Most Comprehensive Warranty in the Industry

No out-of-pocket costs; labor, parts, and service are all included in Warranty. That’s up to a $849 value!

Eco-Cise™ Weekly Test Mode

Our short 16-second weekly test mode ensures your Briggs & Stratton 18kW Generator is in top operating condition while reducing noise and fuel consumption.

Flexible Installation & Maintenance

18kw home standby Generator is approved for installation as close as 18” to a building⁴ with easy toolless panel removal for serviceability and maintenance.

Suitable for Off-Grid use or Demand Response Programs

Certified for non-emergency use, partner with your utility company’s demand response program and receive rewards for helping reduce the overall load on the power grid.

In-House Call Support

Enjoy direct access to our US-based Briggs & Stratton energy experts whenever you need them.

 

Specifications

OVERVIEW
Brand	Briggs & Stratton
Series Name	PowerProtect™
Model Name	PP18
Power, Standby (LP/NG) (kW)	18 / 18
Rated AC Voltage (Volts)1	120 / 240
Rated Frequency (Hz)1	60
Generator Breaker (Amps)	80
Operating Ambient Temperature (°C/ °F)	-28 to 40 / -20 to 104
Rated Amperage, Standby (LP/NG) (Amps)1	75.0 / 75.0
Rated Power Factor	1
Programmable Exercise Cycle	16 sec (default) – 20 mins
Engine
Engine Brand/Manufacturer	Vanguard
Model Type	M61
Aspiration	Naturally Aspirated
Speed (RPM)	3600
Displacement (ci/cc)	61 / 993
Compression Ratio	9.7:1
Governor Type	SAE J1444 Class B Frequency Regulation
Bore & Stroke (in/mm)	3.37 x 3.41 / 85.5 x 86.5
Cylinder Block	Aluminum w Cast Iron Sleeve
Valve Arrangement	OHV
Engine Cylinder Configuration	V
Number of Cylinders	2
Start Type	Automatic, Starter Motor
Air Filter Type	Dry
Low Oil Pressure Switch	Yes
Engine Oil Heater	Available as an Accessory
Rated Temperature (°F/ °C)	77 / 25
Sound Rating
Low Idle Mode Sound dB(A)2	64
Normal Operating Sound dB(A)2	68
Lubrication System
Type	Full Pressure
Oil Capacity (oz/L)	78 / 2.31
Oil Filter (Quantity/Type)	1 / Cartridge
Oil Brand	Schaeffer
Recommended Oil	5W30 Full Synthetic
Electrical System
Ignition System	Variable Timing
Battery Quantity	1
Battery Voltage (VDC)	12
Battery CCA (Amps)	540
Battery BCI Group Size	26 or 51
Starter Motor Voltage (VDC)	12
Fuel System & Consumption
Fuel Type	NG / LPV
Fuel Supply Line Inlet	3/4” NPT
Recommended Fuel, Lower Heating Value Minimum (MJ/m3 / BTU/ft3)	(NG: 34.3 / 904) (LPV: 87.1 / 2338)
Fuel Supply Pressure (mbar/in H20)	(NG: 9-17 / 3.5-7) (LPV: 28-34 / 11-14)
No Load, NG (BTU/hr)	99,000
No Load NG (ft3/hr)	99
Half Load, NG (BTU/hr)	176,000
Half Load, NG (ft3/hr)	176
Full Load, NG (BTU/hr)	252,000
Full Load, NG (ft3/hr)	252
No Load, LP (BTU/hr)	100,000
No Load, LP (ft3/hr)	40
No Load, LP (gal/hr)	1.1
Half Load, LP (BTU/hr)	193,000
Half Load, LP (ft3/hr)	77
Half Load, LP (gal/hr)	2.2
Full Load, LP (BTU/hr)	310,000
Full Load, LP (ft3/hr)	124
Full Load, LP (gal/hr)	3.5
Alternator Specifications
Alternator Type	Synchronous, Self-Excited, Rotating Field
Alternator Manufacturer	B&S
Rated Frequency (Hz)1	60
Rated Phase1	1
Insulation Rating (Class)	H
Designed Temperature Rise (°C)	125
Bearing (Quantity/Type)	1 / Sealed
Number of Poles	2
Voltage Regulator	Brushed / Electronic
Motor Starting Capability (kVA)	45
Total Harmonic Distortion (THD), NL to FL (%)	< 5
Controls / Instrumentation
Controller	GC-1032
Charger	Stand Alone
Starting	AMF or 2-wire
LED Display with Fault Code Indications	Yes
Real Time Clock	Yes
Engine Hour Counter	Yes
Engine Runtime Scheduler	Yes
Low Oil Pressure Shutdown	Yes
High Temperature Shutdown	Yes
Other Features
Battery Rack and Cables	Yes
Fuel Solenoid Valve	Yes
Integral Vibration Isolation	Yes
Oil Drain Extension	Yes
Operation and Installation Manual(s)	Yes
Enclosure	Aluminum
Enclosure Wind Speed Rating (mph)	186
Accessories
Maintenance Kit	6872
Oil Warmer	6840
Fuel Regulator Warmer	6845
Surge Protector	6631
InfoHub™ Universal – Cellular	6574
Limited Warranty4
Warranty: Generator, Domestic & Canada (Parts / Labor / Travel) — Years	7
Warranty: Enclosure, Surface Rust and Corrosion (Parts / Labor / Travel) — Years	1
Warranty: Enclosure, Rust Through (Parts / Labor / Travel) — Years	3
Warranty: Non-Emergency (Parts/Labor/ Travel) — Years	7yr or 1000 hr
Certifications
UL	Yes
cUL	Yes
FCC	Yes
Massachusetts Plumbers and Gasfitters	Yes
NFPA 37	18” Installation Clearance from House5
Weights & Dimensions
Assembled Dimensions (Length x Width x Height) (in / mm)	46.5 x 26.8 x 28.4 / 1181 x 681 x 721
Assembled Weight (lbs / kg)	465 / 210
Packaged Dimensions (Length x Width x Height) (in / mm)	48.8 x 30.5 x 50.5 / 1240 x 775 x 1283
Packaged Weight (lbs / kg)	540 / 245
Outline and Pad Layout Drawing	80104089