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        PowerProtect™ 12kW Standby Generator

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        Starting at MSRP $3,929.00

        At nearly half the footprint of competitors, our 12kW1 comes standard with more power. Its unique design and front-facing exhaust also allows for easy placement for installation outside your home.

        Click here to view spec sheet.

        Available Models: 040666

        Feature

        Features

        Smallest Footprint in its Class

        A 30% smaller footprint than competitive generators allows for easy, discreet placement and installation.

        Best-In-Class Warranty

        6-Year limited warranty2 of parts, labor, and travel, included for the entire term. The industry’s most comprehensive warranty over time is standard to give you piece of mind that you have the coverage you need.

        Quiet Weekly Test Mode

        Over 75% quieter during weekly test mode, for less disruption to you and your neighbors.3

        Multiple Fuel Options

        Optimized for both natural gas and liquid propane fuels, the PP12 can provide reliable backup power to your home regardless of your available fuel options.

        Commercial-Grade Vanguard® Power

        Rugged, reliable engines trusted for the most demanding commercial applications, so you always get the power you need.

        Easy Installation & Serviceability

        Approved for installation as close as 18" to a building for flexibility of placement around the home, and a hassle-free installation.4

        Assembled & Engineered in USA

        Briggs & Stratton generators are designed and assembled in the USA.5

        Power Management System (Optional)

        Customizable to your home's power needs, Symphony® II and Amplify™ Power Management systems offer prioritized whole house power giving flexibility to a more affordable standby generator solution.
        Learn more.

        Superior Customer Support

        When you need support, we've got your back with a nationwide call center and dealer network. Our best-in-class customer service team is always prepared to assist with any questions you may have.

        Corrosion Resistant Enclosure & Base

        Automotive-grade galvanneal steel base and aluminum enclosure to resist rust, and powder-coated paint for years of protection against chips and abrasions.

        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).
        2See operator’s manual or briggsandstratton.com for complete warranty details.
        3Compared to full load based on lowest microphone at 7 meters
        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.
        5Of U.S. and global parts

        Specifications

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        Model Number
        040666
        MSRP (USD)*
        $3,929.00
        Running Watts (Liquid Propane) kW**
        12
        Running Watts (Natural Gas) kW**
        10.8
        Running Amperage (Liquid Propane) Amps**
        50
        Running Amperage (Natural Gas) Amps**
        45
        Voltage
        120 / 240
        Circuit Breaker Amps
        60
        Engine Brand
        Vanguard®
        Engine Displacement (cc)
        623
        Motor Starting Capability (kVA)
        37 (35% Voltage Dip)
        Assembled Length (in.)
        28
        Assembled Width (in.)
        24.5
        Assembled Height (in.)
        37.2
        Assembled Weight (lbs.)
        361
        Normal Operating Sound
        70 dBA
        Fuel Consumption (Liquid Propane) (50% Load, BTU/hr)***
        155,000
        Fuel Consumption (Natural Gas) (50% Load, BTU/hr)***
        117,000
        Limited Warranty (Years)†
        6

        *Starting price in US dollars. Does not include installation, automatic transfer switch, accessories or shipping.
        **This generator is rated 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).
        ***Fuel consumption rates are estimated based on normal operating conditions. Generator operation may be greatly affected by elevation and the cycling operation of multiple electrical appliances - fuel flow rates may vary depending on these factors.
        †See operator’s manual or briggsandstratton.com for complete warranty details.

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        Transfer Switches

        Transfer Switches

        View our full lineup of automatic transfer switches, that pair with your standby generator to provide seamless backup power to your home in the event of an outage.

        financing solutions

        Financing

        Backup power is one of the smartest investments you can make in your home. Learn about how you can purchase a generator with easy financing options*.

        *Subject to credit approval, minimum monthly payments required, see dealer for details

        Accessories

        Accessories

        Whether you want real-time remote monitoring, cold weather protection, or prioritized power management, our optional accessories can help you create a backup power system that's customized to your home's needs.

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