Koshin STH-50X Semi-Trash Pump 158 GPM 2" w/ Honda Engine - Pump - Koshin

Koshin STH-50X Semi-Trash Pump 158 GPM 2" w/ Honda Engine

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  • $815.00
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Professional contractors know that worksite water is often muddy, sandy and can wear down a clear-water pump. Koshin’s Semi-Trash Pumps are designed to the highest quality for optimal durability under tough construction site conditions.


  • Silicon carbide mechanical seals for increased abrasive resistance, longer life, and less maintenance
  • Great for irrigation, construction, industrial and general water transfer
  • Perfect for debris in the water stream - Muddy / Sandy / Pebbles / Debris
  • Impellers and volutes are constructed of spheroidal graphite ductile cast iron for increased durability and long life
  • Pump housings are made of die-cast aluminum for strength, weight reduction and portability
  • Rugged powder-coated roll cages
  • Honda engine with low oil shut off
  • 3-year limited warranty on pump ends


Suction, Discharge Size 2″ NPT
Maximum Output 158 GPM
Maximum Discharge Head 95 ft.
Maximum Suction Lift 26 ft.
Maximum Pressure 41.1 psi
Engine Model Honda GX120
Engine Displacement 118 cc
Engine Horse Power 3.5 hp
Fuel Tank Capacity 0.66 gal.
Full Load Run Time 2.0 hours
Fuel Type Unleaded Gasoline
Packaged Weight 56 lbs.
Packaged Dimensions (LxWxH) 18″ x 14″ x 15″


STH-100X Semi-Trash-Pump Performance Curve

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