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Koshin Pumps

Koshin pumps are the standard and known world wide in the contractor, rental, and portable pump markets as the brand to use. Most portable water pumps by Koshin feature Honda gas engines. Need replacement Parts or repair kits for your Koshin pump, we have them with many available on our web site.

All pumps can be provided in dual fuel system, gas and Propane LPG. Propane offers less expensive fuel, cleaner, safer and long lasting.

Koshin Trash Pumps

Koshin Trash Pumps powerfully handle solids ranging from 1.5 inches to 6 inches and the semi-trash pumps handling solids from 1.5 inches to 3 inches. Each trash pumps is designed for different sized debris, so check the specifications to ensure the pump is appropriate for your application. If you are not sure, give us a call and we will assist you in selecting the right trash pump. 3 YEAR Warranty!

Koshin High-Pressure Pumps

High pressure pumps are not a one size fits all pump category. Koshin High Pressure pumps come in gas and propane powered engines, with specifications designed for fire pumps, irrigation pumps, roofer pumps and more. 3 YEAR Warranty! 

Koshin Electric Submersible Pumps

The Koshin Submersible pumps are a heavy duty lineup of contractor pumps designed for dirty water pumping. These workhorses are ideal for contractors who need a submersible dewatering solution in a variety of conditions. 3 YEAR Warranty!

Koshin Pump Parts

As an authorized Koshin Pump dealer, you can order the full line of Koshin Parts from PumpBiz. If you are not sure of the correct part of kit, give us a call and we will make sure you get the right parts.


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  1. Koshin Pumps

    Trash Pump 3" Honda GX240 Gas


    10% Off Special Price $1,563.21 Regular Price $1,736.90

    Trash Pump 3 Inch, wet prime. Honda GX240 7HP engine. Conical Trash Impeller. USDA Forest Service approved spark arrester. Koshin makes the same pump under the WT30 model, exact same.


    • The cleanout cover and volute can be easily remov...
    7 HP 21 21240GPH 240cc Learn More
  2. Koshin Pumps

    Koshin Semi-Trash Pump 4 inch Honda

    SEH-100T STH-100X

    10% Off Special Price $1,814.67 Regular Price $2,016.30

    Koshin Semi-Trash Pump with Honda engine, Pump 4 inch. STH-100X (old SEH-100T seh-100x) All aluminum die cast pump housing, with Cast Iron impeller and volute for portability. Cast Iron impeller and volute are premium Spherodial Graphite Cast Iron...

    Honda 4-Cycle 7HP 23,000GPH Learn More
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