Generac 6822 ST Series Semi-Trash Water Pump *DISCONTINUED*

    By Generac | Mfr#: 6822 | Tiger#: TS35067


    • Choice of 2 packages
    • Power up to 158 gallons per minute
    • Fuel type: 10W-30 / SAE30 oil
    • Runtime up to 5 hours
    • Fuel capacity: Up to 3 gallons
    • Engine type: Generac OHV or Subaru OHC
    • Aluminum pump housing, 2" suction port 
    • Low-oil automatic shutdown
    More Product Details What's Included
    • Product Options
    Availability:Out Of Stock
    Ships Out Within: Discontinued
    Tiger Supplies no longer carries this item

    Overview for Generac 6822 ST Series Semi-Trash Water Pump

    The Generac ST Series Semi-Trash Water Pump is specialized for rugged pumping jobs. The Semi-Trash water pump is capable of pumping out water with solid particles such as sand, muddy water, and small stones up to one-fourth inch. The ST Series has a powerful pump that can perform the suction operation of up to 158 gallons per minute using a 10W-30 / SAE30 oil for outlasting engine performance. It has a runtime of up to 5 hours in a 3-gallon fuel tank.

    Featuring the durability of the Generac ST Series, this is powered by a 169cc Subaru OHC or a 208cc Generac OHC Pull Start engine with an Easy Prime custom funnel design for a hassle-free priming. Its mechanical seal is made using a durable silicon carbide keeping the ST Series protected from abrasive objects. The pump housing is made from a hardened aluminum for added toughness. It also has a low oil shutdown to prevent engine damage.

    The ST Series is also a user-friendly suction equipment its brief manual is shown on the water pump. Plus, the color-coded ports are very accessible and easy to recognize, the green port is for the suction and blue is for the discharge port. The water pump engine is protected by a 1-inch solid frame to perform in any tough situation. Along with these features is a limited product warranty for residential and commercial customers.

    Configuration Options

    The Generac ST Series Semi-Trash Water Pump comes in 2 packages with a choice of engine type, engine displacement, and product warranty. Select your preference from the drop-down menu above.

    • 6822: Generac ST20K Semi-Trash Water Pump Generac 208cc OHV Engine, 2" Suction Port

    The Generac ST20K is built with an OverHead Valve (OHV) Subaru engine that runs a 208cc engine for longer engine life, minimal fuel consumption, and smoother pumping operations.

    • 6919: Generac ST20-S Semi-Trash Water Pump Subaru 169cc OHC Engine, 2" Suction Port

    The Generac ST20 features an air-cooled 169cc Subaru OverHead Camshaft (OHC) engine. The OHC design of this water pump allows the intake and exhaust valves to be positioned for optimum performance. 






    Engine Type

    208cc Generac OHV

    169cc Subaru OHC

    Pumping Power

    Up to 158 gal/min

    Up to 158 gal/min


    Up to 5 hours

    Up to 5 hours

    Suction Port

    2 inches

    2 inches

    Gas Tank

    Up to 5 gallons

    Up to 5 gallons

    Suction Hose

    12 feet


    Discharge Hose

    25 feet


    Hose Connection

    Plastic Speed Nut


    Volute & Impeller

    Cast Iron

    Ductile Cast Iron