Briggs & Stratton PowerProtect™ 18kW Standby Generator PP18
The PowerProtect™ 18kW¹ Home Standby Generator delivers reliable backup power with advanced NGMax™ and Eco-Cise™ technologies. This dual-fuel generator operates on both natural gas and liquid propane, providing 18kW of continuous power at 75 amps to keep your home running during outages.
Commercial-Grade Vanguard® Engine Performance
Powered by a 993cc Briggs & Stratton Vanguard® commercial-grade engine, the PP18 provides dependable performance designed for continuous operation. The NGMax technology delivers the highest rated power output on natural gas in its class, ensuring your essential appliances and systems remain operational when grid power fails.
Superior Motor Starting Capability
With 45 kVA motor starting capability, this generator handles the surge demands of large appliances like air conditioners, well pumps, and refrigerators without hesitation. The 120/240-volt output with an 80-amp circuit breaker provides whole-home power distribution.
Quiet, Efficient Operation
Operating at just 68 dB(A), the PP18 runs quieter than many competitors. The Eco-Cise™ weekly test mode completes system checks in just 16 seconds, reducing fuel consumption and noise while ensuring the generator remains ready for operation. Fuel consumption rates of 176,000 BTU/hr on natural gas and 193,000 BTU/hr on liquid propane at 50% load demonstrate efficient performance.
Durable Aluminum Construction
The reinforced aluminum enclosure features Dura-Zen™ corrosion-resistant coating, protecting internal components from harsh weather conditions while maintaining an attractive appearance. Measuring 46.5" L x 26.8" W x 28.4" H and weighing 465 lbs, the compact design allows installation as close as 18 inches to buildings with proper carbon monoxide detector installation.
Industry-Leading 6-Year Comprehensive Warranty
Backed by the most comprehensive warranty in the industry, this generator includes 6 years of coverage with no out-of-pocket costs for labor, parts, and service—a value up to $735. US-based Briggs & Stratton support provides direct access to energy experts.
Flexible Installation and Certified Applications
Tool-less panel removal simplifies maintenance and serviceability. The PP18 is certified for non-emergency use, making it suitable for off-grid applications and utility demand response programs where you can earn rewards for reducing grid load during peak times.
NOTE: Battery purchased separately. Oil warmers and battery warmers not included on 13-26kW generators.
Features:

Highest Rated Power Output on Natural Gas2
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.

Vanguard® Commercial-Grade Engine
Designed for reliable, continuous performance - from the engine experts at Briggs & Stratton.

Superior Motor Starting
Ensure smooth operation of your large appliances during startup

Most Comprehensive Warranty in the Industry³
No out-of-pocket costs; labor, parts, and service are all included. That's up to a $735 value!

Eco-Cise™ Weekly Test Mode
Our short 16-second weekly test mode ensures your generator is in top operating condition while reducing noise and fuel consumption.

Flexible Installation & Maintenance
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.
1This generator is listed in accordance with UL (Underwriters Laboratories) 2200 (stationary engine generator assemblies) and CSA (Canadian Standards Association) standard C22.2 No.100-14 (motors and generators).
2In its named class.
3See operator's manual or briggsandstratton.com for complete warranty details.
4The installation manual contains specific instructions related to generator placement in addition to NFPA 37, including the requirement that carbon monoxide detectors be installed and maintained in your home or business.
Specifications:
| Model Numbers |
040756, 040753 |
| Running Watts (Liquid Propane) kW** |
18 |
| Running Watts (Natural Gas) kW** |
18 |
| Running Amperage (Liquid Propane) Amps** |
75
|
| Running Amperage (Natural Gas) Amps** |
75 |
Voltage
|
120 / 240 |
| Circuit Breaker Amps |
80 |
| Engine Brand |
Briggs & Stratton® Vanguard® Commercial-Grade |
| Engine Displacement (cc) |
993 |
| Motor Starting Capability (kVA) |
45 |
| Assembled Length (in.) |
46.5 |
| Assembled Width (in.) |
26.8 |
Assembled Height (in.)
|
28.4 |
|
Assembled Weight (lbs.)
|
465 |
|
|
68 db(A) |
Fuel Consumption (Liquid Propane) (50% Load, BTU/hr)***
|
193,000 |
Fuel Consumption (Natural Gas) (50% Load, BTU/hr)***
|
176,000 |
Limited Warranty (Years)†
|
6-Year Comprehensive |
|
|
Operator's Manual - English, Spanish-Colombian, French-Canadian |