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Water Trash Pump 3" Gas Engine

301cc 350gpm 270cc 3YR Warr. READY to ship
Model Number
koshin 3" trash pump ktz-80s

Koshin KTZ-80S

Water Trash Pump 3" Gas Engine.

Commercial duty designed for job sites and applications where high volume slurry trash water capacity is needed. Also used a lot for 300 gal hydro seeders. The pump is a 38 PSI, 383 GPM pump that works great for hydro seeding. Creates great turbo mixing and moderate seed spraying. USDA Forest Service approved spark arrester. Same pump as wt30. Self prime water pump Engine Driven. The pump is a 36 PSI, 333 GPM pump that works great for hydro seeding or skimming duckweed from a pond.  When dredging, these pumps will handle the sand, silt and muck.

This pump is ideal for dewatering excavations, utility vaults, mining work, swimming pools, lakes and barge holds. Order by noon ships the same day.


  • The clean-out cover and volute can be easily removed without removing the Suction Hose for easy cleaning of debris.
  • Suction lift up to 26FT
  • The seal is the heart of the pump. Silicon Carbide seals, developed exclusively for Koshin, vastly increase the durability of the mechanical seal and protect engine shaft. Silicon carbide SiC seals are 2 times harder, 15% tougher, and 50% stronger than common ceramic seals.
  • Koshin pump unique conical shaped Impeller is Hi-chrome cast iron. Volute manufactured from Spheroidal Graphite (ductile) cast iron. These materials employed to ensure long life, erosion resistance and low maintenance. No wear-out plates, which wear-out.
  • Sturdy steel wrap-around pipe frame protects entire unit.
  • Rubber mountings / isolation minimize vibration.
  • Koshin OHV engine with oil alert, cast iron cylinder and electronic ignition provides reliability and low fuel consumption.
  • All aluminum die cast pump housing for light weight and portability.
  • 1.4 Gal. fuel tank provides up to 2 Hrs run time.
  • Easy quick clean out port on side of pump.
  • Service tool: multi-tool is provided for easy removal and installation of the pump case, for tightening and removal of the priming plug and drain plug, and for tightening and removal of the hose couplings.
  • Commercial 3-year warranty on engine and pump ends.

Order Koshin Trash Pump with engine. Do not be fooled by imitation "industrial" pumps sold elsewhere. The pump quality is not the same and as with any pump parts will be needed and PumpBiz stocks parts to all the pumps we sell and support. These are the same pumps used by many rental stores, so they have proven themselves many times over. Replaces KTH-80X 

When using as a dredge for sediment removal, consider using the bottom hole strainer of smaller size as a hydraulic excavator next to the intake.

More Information
Model Number KTZ-80S
Series Trash Pumps Honda Gas by Koshin
Max Flow (GPM.) 375
Max Flow GPH 22500
TDH Maximum (Ft) 72
TDH Maximum (PSI) 31
Horse Power (HP) 8
Horsepower (IE .5, 1, 1.5, 20) 8
Inlet Connection Type MNPT
Inlet (In.) 3
Outlet Connection Type MNPT
Outlet (In.) 3
Wetted Materials Aluminum, Ductile Iron
Elastomers / O-ring Buna-Nitrile
Motor Gas Engine
Speed (RPM.) 3450
Self Priming Yes
Suction Lift (FT.) 26
Max Operating Temperature (F) 120
Viscosity Vegetable Oil 34.60 cp 200.00 ssu
Length (In.) 27.0000
Mechanical Seal Face SiC
Mechanical Seal Type Single
Other Includes sturdy wrap-around steel pipe frame. Most Parts are same and interchangeable with Honda WT30 pumps. Priming Time 90 sec. at 16.4 ft. Dim. 26.0" x 19.5" x 20.3". K300 engine
Low Oil Shutdown Yes
Impeller Material Hi-Chrome cast iron, non-clog
Duty Continuous
Drain Yes
Port Rotation Yes
Run Time (HR.) 2
Fuel Tank Size 1.6 gal.
Country of Manufacture Japan
Weight (Lbs) 158.000000
Engine Brand Koshin
Warranty (YRS.) 3
GPM Of Water At 20 Feet Of Head 320
GPM Of Water At 40 Feet Of Head 275
GPM Of Water At 60 Feet Of Head 180
GPM Of Water At 70 Feet Of Head 110

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.