18kW Briggs & Stratton PowerProtect+ Standby Generator - 120/240V, Dual Fuel (LP/NG), Vanguard Engine, 7-Year Warranty - Model 040757

Briggs & Stratton 18kW PowerProtect+ Standby Generator – Whole-Home Backup Power with the Best Warranty in the Industry The Briggs & Stratton 18kW PowerProtect+ Standby Generator (Model 040757) delivers automatic whole-home backup power for medium to large homes — engineered to restore electricity within seconds of a grid failure and keep your HVAC, refrigerator, lighting, sump pump, and home electronics running without interruption. Backed by the industry's longest and most comprehensive standard warranty at 7 full years of parts, labor, and travel coverage, this is the generator you buy once and never worry about again. Powered by a Briggs & Stratton Vanguard® V-twin commercial-grade engine running at 3,600 RPM with full pressure lubrication, the 040757 is built for reliable, continuous standby performance through years of service and extended outage events. Natural gas and liquid propane are both fully supported — connect to your existing home gas line for continuous fuel supply with no tanks to fill, or run on LP for maximum flexibility in areas without gas service. Exclusive Front-Facing Exhaust Only Briggs & Stratton offers standby generators designed to direct exhaust away from your home and landscaping. The front-facing exhaust design on the 040757 is both safer and more versatile — enabling installation closer to your home with minimal disruption to your exterior and landscaping, in locations where competing generators simply cannot be placed. Best-in-Class Motor Starting Power The 040757 is designed to start a 5-ton central air conditioner with ease — the single most demanding startup load in a typical home. Competing generators in this class frequently struggle with AC startup; the PowerProtect+ handles it without hesitation, delivering best-in-class motor starting power that ensures your most critical systems come on immediately during an outage. EnergyTrak™ Integrated Remote Monitoring The built-in EnergyTrak™ app lets you monitor your generator's status from anywhere — and goes further than basic monitoring by enabling your dealer to remotely troubleshoot and diagnose issues without an in-person service call. This means faster resolution times and less downtime when service is needed. Eco-Cise™ 16-Second Weekly Test Mode The automatic 16-second weekly exercise cycle verifies the generator is ready for the next outage while minimizing noise and fuel consumption — a significant improvement over the longer, louder exercise cycles on competing units. Key Specifications Spec Detail Standby Rating 18 kW Voltage 120/240V, Single-Phase Fuel Type Natural Gas / Liquid Propane (Dual Fuel) Engine Vanguard® V-Twin, OHV, Commercial-Grade Engine Speed 3,600 RPM Lubrication Full Pressure THD < 5% Sound Level (Low Idle) 64 dB Sound Level (Normal Operation) 68 dB Operating Temperature Range -20°F to 104°F Exhaust Design Front-Facing (exclusive) Weekly Exercise Mode Eco-Cise™ 16-Second Test Mode Remote Monitoring EnergyTrak™ (integrated app) Controller LED Display with Fault Code Diagnostics Enclosure Corrosion-Resistant Aluminum, Angled Louvers Certifications UL, cUL Engineered & Assembled USA Warranty 7-Year Parts, Labor & Travel Enhanced Weather Protection Enclosure The redesigned PowerProtect+ enclosure features robust angled louvers and improved protection from moisture, dust, and vibration — engineered for maximum durability and longevity in the harshest outdoor environments. The corrosion-resistant aluminum construction with enhanced weather sealing means this generator looks and performs like new years after installation, even in coastal, high-humidity, or extreme-weather environments. 7-Year Warranty — The Best in the Industry The PowerProtect+ 040757 comes with a 7-year comprehensive standard warranty covering parts, labor, and travel — with no out-of-pocket costs for covered repairs, valued at up to $849. This warranty is the longest and most comprehensive in the residential standby generator category, outlasting Generac's 5-year and Kohler's 5-year warranties by two full years. Unlike competitor warranties that reduce coverage over time, Briggs & Stratton's 7-year warranty maintains full parts, labor, and travel coverage for the entire term. Model: 040757 Warranty: 7-Year Parts, Labor & Travel FAQ What can the Briggs & Stratton 18kW 040757 power in my home? The 040757's 18kW output is sized for medium to large homes and supports your central air conditioner, furnace or heat pump, refrigerator, freezer, sump pump, lighting, televisions, computers, and other essential appliances simultaneously. It is designed to handle a 5-ton AC unit — the largest and most demanding residential HVAC load — with best-in-class motor starting power. How does the 7-year warranty compare to Generac and Kohler? The PowerProtect+ 040757 carries a 7-year comprehensive warranty covering parts, labor, and travel for the full term — two years longer than Generac's 5-year and Kohler's 5-year warranties. Competitor warranties also reduce labor and travel coverage in later years; the Briggs & Stratton warranty maintains full coverage throughout. This is the longest standard warranty in the residential standby generator industry. What fuel does the 040757 use and which is better — natural gas or LP? The 040757 runs on either natural gas or liquid propane vapor. Natural gas connects to your existing home gas line for unlimited, uninterrupted fuel supply — the best choice for most urban and suburban homeowners. Liquid propane delivers slightly higher output and is the better choice for rural properties without natural gas service. Both fuels are fully supported without any hardware conversion required. How close to my house can the 040757 be installed? The exclusive front-facing exhaust design directs exhaust away from your home, enabling installation closer to your home and landscaping than competing generators. Always follow the installation manual and local code requirements, including carbon monoxide detector installation, for precise minimum clearance distances. Does the 040757 start automatically during a power outage? Yes. When paired with a compatible automatic transfer switch (ATS), the 040757 continuously monitors utility power and starts automatically within seconds of detecting an outage — restoring power to your home with no manual intervention required. An ATS is required for automatic operation and is sold separately.