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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

    4" Trash Pump Diesel

    KTR-100x

    $5,280.00
    4 inch water trash pump, Robin EH41 9.5HP engine. Koshin makes the same pump under the WT40 model, exact same. Features• The cleanout cover and volute can be easily removed in seconds for easy cleaning of debris.• The seal is the heart of the pum...
    9.5 HP 25 320GPH Learn More
  2. Koshin Pumps

    Shaft Seal

    0110863

    $76.00
    Mechanical shaft seal for Koshin SERH-50B. Includes carbon and ceramic seal faces along with SS spring. Recommended anytime the impeller is changed or the shaft seal has been removed. Keeps the water from leaking down the shaft into the engine ...
    Carbon / Ceramic water pump seal Learn More
  3. Koshin Pumps

    Seal kit overhaul

    SK-010

    $167.20

    Seal Kit, overhaul your Koshin Pump. Silicon Carbide & Buna, For Use With Koshin pumps STH-80X and STV-80X KDH-80x 3" semi-trash pumps , Includes 1 Mechanical Seal, 3 Adjusting Washer, 2 Plug Sets, 1 Check Valve 0112799, 3 O-rings / Gaskets. 11g23...

    Repair Kit STH-80X and STV-80X KDH-80x 3" semi-trash pumps Learn More
  4. Koshin Pumps

    Shaft Seal

    0110688

    $39.60
    Mechanical shaft seal for Koshin SEH-50. Includes carbon and ceramic seal faces along with SS spring. Recommended anytime the impeller is changed or the shaft seal has been removed. Keeps the water from leaking down the shaft into the engine be...
    Carbon / Ceramic water pump seal Learn More
  5. Koshin Pumps

    Koshin Impeller PS-65011

    0390030

    $37.40
    Koshin PS pump impeller, OEM. Solid cast iron impeller part for Koshin water pump PS-65011 Keyed impeller. Repair part for submersible pump by Koshin.
  6. Koshin Pumps

    Seal kit overhaul KTH80s

    SK016

    $270.60

    Seal Kit, Buna, For Use With Koshin pumps KTH-80S (not X) 3" trash pumps, newer design. Includes 1 Mechanical Seal, 3 Adjusting Washer, 2 Plug Sets, 1 Check Valve, 3 O-rings / Gaskets. 

    The overhaul kits from Koshin America are easy to install, b...

    Repair Kit KTH-80S Learn More
  7. Koshin Pumps

    Seal kit overhaul KTH

    SK013

    $273.90

    Seal Kit, Buna, For Use With Koshin pumps KTH-100X (not S) 4" trash pumps , Includes 1 Mechanical Seal, 3 Adjusting Washer, 2 Plug Sets, 1 Check Valve, 3 O-rings / Gaskets. 11g239 

    The overhaul kits from Koshin America are easy to install, but if...

    Repair Kit KTH-100X Learn More
  8. Koshin Pumps

    Koshin Impeller STH-80

    0115539

    $71.50

    Koshin Semi-Trash 3" pump impeller, OEM. Solid cast iron impeller part for Koshin water pumps SEH-80T,STH-80X and STV-80. Threaded impeller goes on 14mm threaded engine shaft. 

     

    replaces northstar 109170

    SEH-80T STH-80X Semi-trash 3" Learn More
  9. Koshin Pumps

    Fire Water Pump 1 1/2 inch Honda Gas

    SEH-40H

    $687.50

    Fire, Flooding Pump, firefighting or high pressure. Honda engine Water Pump 1-1/2 inch SEH-40. All aluminum die cast pump housing, with Cast Iron impeller and volute for lightweight, portability while durable wear parts. Metal Carry handle and bas...

    High pressure Fire / Irrigation Learn More
  10. Koshin Pumps

    Replacement Diaphragm 3"

    K2132-000-00

    $97.90

    Replacement diaphragm for 3" mud pump KDP-80x (NOT for KDP-80HW). TPE 

     

    For older Koshin pumps and Ch&E Magnum MCP5537-6537 3” Gas Engine Powered Diaphragm Pumps, call for parts.

    Diaphragm Learn More
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