Briggs & Stratton 040757 18kW PowerProtect+ Generator Features:
Briggs & Stratton 040757 18kW PowerProtect™ Standby Generator
The Briggs & Stratton 040757 18kW PowerProtect™ generator is a residential standby generator designed to deliver reliable whole-home backup power during outages. Built for automatic operation, the generator continuously monitors utility power and restores electricity within seconds, helping keep essential systems like HVAC, refrigeration, lighting, and home electronics running without interruption.
With 18kW of standby power and 120/240-volt single-phase output, this generator is ideal for medium to large homes that require dependable backup power coverage. It provides enough capacity to support multiple circuits or essential loads, making it a strong solution for homeowners who want protection from power outages caused by storms, grid failures, or unexpected disruptions.
At the core of the PP18 is a Briggs & Stratton Vanguard® V-twin engine, engineered for durability and long-term standby performance. Operating at 3,600 RPM with full pressure lubrication, the engine is built to deliver consistent power output while maintaining reliability during extended outages. The generator also features less than 5% total harmonic distortion (THD), producing clean, stable electricity that is safe for sensitive electronics and modern appliances.
Designed for quiet and durable outdoor installation, the generator is housed in a corrosion-resistant aluminum enclosure with a sound rating as low as 64 dB in low idle mode and 68 dB during normal operation. The system includes an advanced controller with real-time monitoring, programmable exercise cycles, and fault code diagnostics, ensuring the generator remains ready when needed.
Key Features
• 18kW standby power output ideal for residential whole-home backup
• 120/240V single-phase output compatible with standard home electrical systems
• Briggs & Stratton Vanguard® V-twin engine designed for durability and reliability
• Full pressure lubrication system for extended engine life
• Less than 5% total harmonic distortion (THD) delivering clean power for electronics
• Automatic operation with programmable exercise cycle for system readiness
• Quiet operation (64 dB low idle / 68 dB normal) for residential environments
• Operates on natural gas or liquid propane vapor for flexible fuel options
• Corrosion-resistant aluminum enclosure designed for outdoor durability
• Integrated controller with LED display and diagnostics for easy monitoring
• Automatic start capability when paired with transfer switch
• Operates in temperatures from -20°F to 104°F for year-round reliability
• UL and cUL listed meeting industry safety standards
• 6-year limited warranty for long-term peace of mind
Frequently Asked Questions
What can an 18kW standby generator power?
An 18kW generator can power most medium to large homes, including HVAC systems, refrigerators, lighting, sump pumps, and essential appliances. It is commonly used for whole-home backup depending on load requirements.
Is the Briggs & Stratton 18kW generator good for whole-home backup?
Yes. The 18kW PowerProtect™ generator is designed for residential whole-home backup and can support multiple essential systems simultaneously, depending on the home's electrical load.
Does this generator produce clean power for electronics?
Yes. The generator produces less than 5% total harmonic distortion, delivering stable power that is safe for sensitive electronics such as computers, TVs, and smart home systems.
What fuel does the generator use?
The generator operates on natural gas or liquid propane vapor, allowing homeowners to choose the most convenient fuel source for their installation.
How loud is the generator during operation?
The generator operates at approximately 64 dB in low idle mode and 68 dB during normal operation, making it relatively quiet for a standby generator.
Does the generator start automatically during a power outage?
Yes. When installed with an automatic transfer switch, the generator continuously monitors utility power and automatically starts within seconds of an outage.
