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The PSS21F4 standby generator is perfect for many different power needs.  This unit can run on LP or Natural Gas. It is unique in that it has a very oversized engine (the same engine as the PSS30) and an jumbo sized generator end. 


Spec Sheet

Winco PSS21F4

  • Ford 2.5L Engine 

    The 4 cylinders, overhead valve engine meets EPA/CARB emission regulations.

    Stamford Generator End

    The s series has a 3-year warranty on the generator end and includes auxiliary winding standards with short circuit capability.

    Premium Circuit Breakers

    Dependable circuit breaker protection.

    Battery Charger 

    Factory-installed 5 stages, 5 Amp battery charger.

    Block Heater

    In-Line Hotstart, 120V, block heater with thermostat.

    DSE 7310 Controller

    The DSE7310 is a powerful, new generation auto-start Genset control module with a highly sophisticated level of new features and functions, presented in the usual user-friendly format.

    Galvanealed Steel Weather Enclosure 

    Our weather enclosures provide sound reduction while our powder coat paint provides a durable, long-lasting finish.

    100% Load Tested

    You won't find statistical sampling here.  Winco load tests every generator before it leaves the factory.

  • Watts

    120/240 1-Ph: 21,000
    120/208 3-Ph: 22,000
    120/240 3-Ph: 22,000
    277/480 3-Ph: 24,000


    120/240 1-Ph: 88
    120/208 3-Ph: 76
    120/240 3-Ph: 66
    277/480 3-Ph: 36

    Voltage Output

    120/208 Volt Three Phase, 120/240 Volt Single Phase, 120/240 Volt Three Phase, 277/480 Volt Three Phase

    Voltage Regulation

    AVR (Automatic Voltage Regulator)



    Engine Brand



    EPA Standby


    Open Skid – 80.5" x 36" x 42.75"
    Enclosed – 81" x 36" x 43.2"


    1,486 lbs.

    Unit Warranty

    2 yrs/2000 Hrs

    Assembled In


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