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.
Model
|  ST20K |  ST20-S |
Engine Type
|
208cc Generac OHV
|
169cc Subaru OHC
|
Pumping Power
|
Up to 158 gal/min
|
Up to 158 gal/min
|
Runtime
|
Up to 5 hours
|
Up to 5 hours
|
Suction Port
|
2 inches
|
2 inches
|
Gas Tank
Capacity
|
Up to 5 gallons
|
Up to 5 gallons
|
Suction Hose
Length
|
12 feet
|
N/A
|
Discharge Hose
Length
|
25 feet
|
N/A
|
Hose Connection
|
Plastic Speed Nut
|
N/A
|
Volute & Impeller
|
Cast Iron
|
Ductile Cast Iron
|