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Koshin KDP-80X Honda GX120 3
Koshin KDP-80X Honda GX120 3

Koshin KDP-80X Honda GX120 3" Diaphragm Pump

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The world’s toughest pump especially designed for pro-contractors and construction equipment rental, Koshin Diaphragm pumps are mudsuckers, capable of running dry. High Quality and durable, Koshin Diaphragm pumps are the best for draining soggy clay, mud, and slurry left after the trash pump is done. Koshin Diaphragm Pumps are easy to maintain making them a favorite of the construction equipment rental industry. Many rental customers keep Koshin Diaphragm Pumps in operation for decades.

Outstanding Features:

  • Built to Run Dry. Perfect for Areas of Low Seepage
  • Positive Displacement Pressure for Thicker than Water Viscosities
  • Straight Line Flow Design is Self-Cleaning and Reduces Clogging
  • Thermal Plastic Rubber Diaphragm and Polyurethane Flapper Valves
  • Oil Filled Gear Reduction for Quiet Operation and Less Vibration
  • Honda GX120 Engines with Low Oil Shut Off
  • Maximum Head of 25
  • Wheel Kit is Standard
  • One Year Limited Warranty

Price Includes

  • Diaphragm Pump Unit


  • Power: Honda GX120 118cc 3.5 HP Unleaded Gasoline
  • Tank Size: 0.66 gal.
  • Full Load Run Time: 2.5 hours
  • Suction, Discharge Size: 3″ NPT
  • Maximum Output: 88 GMP
  • Maximum Discharge Head: 25 ft.
  • Maximum Suction Lift: 26 ft.
  • Maximum Pressure: 61 psi
  • Packaged Weight: 172 lbs.
  • Packaged Dimensions (LxWxH): 33″ x 31″ x 31″


This product qualifies for Free Shipping. There are no minimum purchase requirements or hidden fees. The price you see is the price you pay, without any surprises at checkout.

Quality assurance is our top priority. Before any item leaves our warehouse, it undergoes a Complimentary Pre-Inspection. This process ensures that what you receive is exactly what you ordered, in perfect condition.

Time is precious, and we respect yours. Our Unparalleled Speed in processing and shipping orders means you won't have to wait long for your purchase. Our efficient logistics team works tirelessly to ensure that your order is dispatched promptly and arrives well within the estimated delivery time of 3-5 Days.

Above all, we prioritize your Peace of Mind. From secure packaging to reliable delivery partners, every step of the shipping process is designed to ensure your order reaches you safely and without any hassle. Plus, our customer service team is always here to help with any questions or concerns, providing you with a worry-free shopping experience.


At HOC, we meticulously select our dealers from a pool of globally renowned entities, ensuring that we offer only the best to you. Our commitment to excellence is further reflected in our offering of the most Comprehensive Warranty Periods among equipment dealers across North America.

This approach allows you to make your selection with a sense of confidence and assurance, knowing well that your purchase is under the protection of a warranty that's as steadfast and dependable as the product itself. We invite you to experience the peace of mind and trust that come with choosing HOC, where your satisfaction and security are our topmost priorities.

To view the specific warranty period applicable to this product, and to delve into the details of your protection, please click the link below.

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Koshin KDP-80X Honda GX120 3" Diaphragm Pump

Koshin KDP-80X Honda GX120 3" Diaphragm Pump