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3" Honda Mud Pump

3" Honda GX120
Model Number
KDP-80X
$3,125.00
Koshin Pumps - KDP-80X: 3" Honda Mud Pump

Koshin KDP-80X

Koshin KDP-80X – 3" Gas-Powered Diaphragm Mud Pump
For Sludge, Slurry, Sewage, and Thick Liquids

The Koshin KDP-80X is a powerful, heavy-duty 3" diaphragm pump designed to handle the toughest jobs—mud, slurry, sewage, and other thick liquids that can still flow. Often referred to as mud pumps or sludge pumps, these units are ideal for construction sites, agriculture, wastewater applications, and disaster cleanup.

Engineered for Power & Performance:

  • Honda GX120 OHV Gasoline Engine – Reliable, fuel-efficient, and easy to start

  • 2-Stage Gear Reduction (44:1) – Large-diameter output gear and heavy-duty ball bearings provide superior torque and durability

  • Self-Priming Up to 20 ft. – Thanks to a built-in molded polyurethane flapper/check valve (after initial prime)

Built for the Toughest Fluids:

  • Thermoplastic Rubber Diaphragm – Handles abrasive and viscous materials

  • Solids Handling: Up to 1-5/8" diameter

  • Maximum Flow: Up to 90 GPM

  • Max Temperature: 180°F

  • Suction/Discharge Ports: 3" NPT (cannot be reduced or restricted)

⚠️ Discharge hoses should be no longer than 25 feet unless oversized. Diaphragm pumps have no relief valve—discharge must not be restricted.

Durable & Portable:

  • Sand Cast Aluminum Housing – Tough yet lightweight for portability

  • Modular Component Design – Simplifies maintenance and cleanout

  • Includes:

    • Steel 3" NPT suction strainer

    • Two 3" NPT nipples

    • Wheel kit with 10" semi-pneumatic wheels for easy transport

  • Recommended: Use with hard hoses for best performance

Applications:

  • Mud, slurry, and sludge pumping

  • Construction site dewatering

  • Sewage and wastewater removal

  • Agricultural or industrial fluid transfer

Looking for a centrifugal alternative? See Koshin P212GH.

For parts for Ch&E Magnum MCP5537-6537 3” Gas-Powered Diaphragm Pumps, please contact us directly.

 

More Information
Model Number KDP-80X
Series Trash Pumps Honda Gas by Koshin
Max Flow (GPM.) 88
Max Flow GPH 5280
TDH Maximum (Ft) 25
TDH Maximum (PSI) 11
Horse Power (HP) 4
Horsepower (IE .5, 1, 1.5, 20) 4
Inlet Connection Type FNPT
Inlet (In.) 3
Outlet Connection Type FNPT
Outlet (In.) 3
Wetted Materials Aluminum
Elastomers / O-ring Urethane
Diaphragm Santoprene
Motor Gas Engine
Self Priming Yes
Suction Lift (FT.) 20
Max Operating Temperature (F) 180
Viscosity Catsup 3000.00 cp 20000.00 ssu
Length (In.) 42.2000
Mechanical Seal No
Other Do not use long discharge hose, see manual. Do not restrict suction or discharge
Drain No
Port Rotation Yes
Run Time (HR.) 2
Fuel Tank Size 0.66
Country of Manufacture United States
Weight (Lbs) 172.000000
Engine Brand Honda
Warranty (YRS.) 2
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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. Koshin manufactures a complete line of self priming centrifugal pumps for general transfer, high pressure and trash debris filled liquids. These pumps come in gas or diesel engine and single phase electric submersibles. Koshin is the most copied pump design coming out of China, but do not think they are the same. Use only the best, the original Koshin.

For over 70 years Koshin has continued to invest in new product testing and development. Koshin totally redesigned its production facilities in 2013 adding in house aluminum die casting, production automation, and state of the art process flow management. With a core philosophy of customer satisfaction, Koshin insures that each product off of its production line is of the finest quality. This is why we can proudly say that the performance specification found in this catalog are guaranteed minimum. This is often not the case with our competitors, who inflate actual performance values.

To further insure our valued customers that Koshin stands by our produces, we offer a 3 year limited warranty against manufactured defects. Our pumps are used and loved in 160 all over the world.

Koshin… the world’s toughest pump.