Multiquip Trash Pump | 9.4 HP | Sand-Cast Aluminum/Cast Iron | Recoil/Electric Start | Max 475 GPM | Max 87 ft. Head | Kubota OC95-E4 Diesel | QP4TK

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Multiquip

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Model

QP4TK

ID

240498

Was $7,776.00 Your Low Price Special Price $6,099.00
 
Product Features
  • High-Flow Performance: Pumps up to 475 GPM with 87 ft. maximum head.
  • 9.4 HP Kubota Engine: OC95-E4 diesel engine delivers dependable jobsite power.
  • 4" Ports: Large suction and discharge support high-volume dewatering.
  • 2" Solids Handling: Moves debris-filled water with reduced clogging.
  • Dual 4" Discharge: Two ports provide flexible hose connections.
  • Heavy-Duty Construction: Ductile iron impeller and cast iron volute resist abrasion.

4-Inch High-Volume Trash Pump for Demanding Dewatering

The Multiquip QP4TH is a heavy-duty 4-inch gasoline-powered trash pump designed for high-volume dewatering and water-transfer applications. It delivers up to 555 GPM with a maximum head of 92 feet and can handle solids up to 2 inches in diameter, making it well suited for construction sites, excavations, floodwater removal, farms, irrigation, mining, quarries, municipal work, and other demanding pumping applications.

The QP4TH combines a sand-cast aluminum pump body with cast iron fittings, a ductile iron semi-open impeller, cast iron volute, silicon carbide/304 stainless steel mechanical seal, and a heavy-duty tubular steel frame. Its 10.7 HP Honda GX340 engine provides gasoline-powered performance, while dual 4-inch discharge ports offer flexible hose orientation for different jobsite configurations.

Product Features:

  • 555 GPM Maximum Flow: Pumps up to 555 gallons per minute for high-volume dewatering and water-transfer applications.
  • 92-Foot Maximum Head: Provides up to 92 feet of maximum head for demanding vertical water-transfer requirements.
  • 25-Foot Maximum Suction Lift: Provides up to 25 feet of suction lift under suitable operating conditions.
  • 2-Inch Solid Handling: Handles solids up to 2 inches in diameter, helping reduce clogging when pumping debris-laden water.
  • 4-Inch Suction and Discharge: Uses 4-inch NPT male suction and discharge connections for high-volume pumping applications.
  • 10.7 HP Honda GX340: Uses a 337 cc, air-cooled, four-stroke, single-cylinder OHV gasoline engine operating at 3,600 RPM.
  • Dual 4-Inch Discharge Ports: Provides flexible discharge-hose routing and connection options for different jobsite layouts.
  • Ductile Iron Impeller: Uses a semi-open ductile iron impeller designed for abrasion resistance and long service life.
  • Silicon Carbide Mechanical Seal: Provides high abrasion resistance and high-temperature durability for demanding pumping conditions.
  • Large Cleanout Cover: Provides quick access to the pump chamber for convenient debris removal and maintenance.

What Is a Trash Pump?

A trash pump is designed to move water containing suspended solids, mud, sticks, stones, and other debris that can clog conventional clean-water pumps. The QP4TH uses a large 4-inch pumping passage and 2-inch solid-handling capability to move debris-laden water while maintaining high-volume pumping performance.

555 GPM High-Volume Performance

The QP4TH provides up to 555 GPM with a maximum head of 92 feet and maximum pressure of 40 PSI. Its 25-foot maximum suction lift allows the pump to be positioned near suitable water sources for construction dewatering, floodwater removal, irrigation, and other large-volume water-transfer applications.

Heavy-Duty Pump-End Construction

The QP4TH uses a sand-cast aluminum pump casing with cast iron fittings, a ductile iron semi-open impeller, and a cast iron volute. The silicon carbide/304 stainless steel mechanical seal is designed for abrasion resistance and demanding operating conditions, while the steel pump hardware provides durable assembly for professional use.

Honda GX340 Gasoline Engine

The QP4TH is powered by a Honda GX340 337 cc, air-cooled, four-stroke, single-cylinder OHV gasoline engine rated at 10.7 HP at 3,600 RPM. The engine uses recoil starting, mechanical governing, dual-element air filtration, splash lubrication, and standard low-oil shutdown protection.

Flexible Discharge Configuration

Two 4-inch discharge ports allow discharge hoses to be positioned according to the requirements of the pumping site. This dual-port configuration provides flexibility when routing water around excavations, structures, equipment, or other obstacles.

Large Cleanout for Debris Removal

The QP4TH features a large cleanout cover that can be removed quickly to provide access to the pump chamber. This simplifies removal of debris that may enter the pump during trash-pumping applications and helps reduce maintenance downtime.

Portable Jobsite Construction

A heavy-duty 1.07-inch tubular steel frame protects the pump and engine while providing a practical structure for transportation. The 2026 Multiquip specification lists the pump at approximately 27.9 inches long by 25.0 inches wide by 28.1 inches high with a dry weight of approximately 221.6 pounds. An optional UWK4 wheel kit with folding handles and flat-free tires is available for easier transportation.

Fuel and Operating Conditions

The QP4TH uses unleaded gasoline and has a 1.6-gallon fuel tank. Multiquip rates fuel consumption at approximately 0.82 GPH, providing an estimated 1.95 hours of runtime under the manufacturer's stated conditions. The pump is designed for fluids up to 104°F and is not intended for pumping salt water or selected chemicals.

Warranty

The Multiquip QP4TH pump has a 24-month warranty from the date of purchase. The Honda GX340 engine has a 36-month warranty, while applicable hoses have a 3-month warranty. Refer to Multiquip's New Product Limited Warranty for complete coverage, conditions, and exclusions.


Heavy-Duty 4-Inch Diesel Trash Pump for High-Volume Dewatering

The Multiquip QP4TK is a professional-grade diesel-powered trash pump engineered for demanding construction, municipal, industrial, agricultural, and emergency dewatering applications. Powered by a rugged Kubota OC95-E4 diesel engine rated at 9.4 HP, the QP4TK delivers up to 475 gallons per minute with a maximum published head of 87 feet and maximum pressure of 37.7 PSI, providing dependable high-volume performance for excavations, floods, jobsite drainage, irrigation, mining, quarries, and other challenging water-transfer applications.

Designed for dirty-water applications, the QP4TK can pass solids up to 2 inches in diameter while providing up to 25 feet of maximum suction lift. Its 4-inch suction connection and dual 4-inch discharge ports support rapid water movement and flexible hose positioning, while the semi-open ductile-iron impeller and cast-iron volute provide durable abrasion resistance when handling mud, sediment, gravel, and other debris.

Built for demanding professional use, the QP4TK features a sand-cast aluminum pump casing, silicon-carbide and 304 stainless steel mechanical seal, heavy-duty 1.07-inch tubular steel frame, integrated shock mounts, large cleanout cover, and center lifting pipe. The Kubota diesel engine supports both recoil and electric starting, while the 1.45-gallon fuel tank provides approximately 2.5 hours of published runtime for dependable field operation.


Why Choose the Multiquip QP4TK Trash Pump?

High-Capacity 4-Inch Pumping Performance

  • Delivers up to 475 GPM of maximum published pumping capacity.
  • Provides up to 87 feet of maximum head.
  • Produces up to 37.7 PSI of maximum discharge pressure.

Handles Large Solids and Dirty Water

  • Passes solids up to 2 inches in diameter.
  • Semi-open impeller design is suited for debris-laden water.
  • Ideal for mud, sediment, standing water, and demanding jobsite drainage.

Reliable Kubota OC95-E4 Diesel Power

  • Powered by a Kubota OC95-E4 diesel engine rated at 9.4 HP.
  • 416 cc, air-cooled, four-stroke single-cylinder design provides dependable professional performance.
  • EPA-certified and CARB-preempt engine design supports current emissions requirements.

Recoil and Electric Starting

  • Supports both recoil and electric engine starting.
  • Electric start provides convenient everyday jobsite operation.
  • Compatible 12V battery is optional and sold separately.

Strong 25-Foot Suction Capability

  • Provides up to 25 feet of maximum suction lift.
  • 4-inch suction connection supports rapid high-volume water intake.
  • Suitable for excavations, pits, ponds, tanks, lakes, rivers, and other lower-level water sources.

Flexible Dual 4-Inch Discharge Ports

  • Dual 4-inch NPT discharge ports provide flexible hose orientation.
  • Replaceable discharge connections support long-term serviceability.
  • Multiple outlet positions help simplify pump placement on crowded jobsites.

Durable Ductile-Iron Impeller

  • Ductile-iron impeller provides strength and abrasion resistance.
  • Two-vane design promotes efficient fluid movement and high pumping performance.
  • Designed for demanding applications containing suspended solids and debris.

Heavy-Duty Cast-Iron Volute

  • Cast-iron volute helps reduce wear inside the pump housing.
  • Supports efficient priming and fluid-flow dynamics.
  • Durable construction helps extend pump service life.
More Information
Multiquip Trash Pump | 9.4 HP | Sand-Cast Aluminum/Cast Iron | Recoil/Electric Start | Max 475 GPM | Max 87 ft. Head | Kubota OC95-E4 Diesel | QP4TK
FeatureSpec
SKUQP4TK
Weight (in lbs)286
Brand/ManufacturerMultiquip
UPC613365310679
Additional InformationMaximum head: 85 ft (27 m)
Additional InformationMaximum Solid Intake : 2.0 in (50.8–51 mm)
Motor RPM3600 RPM
Horsepower9.4 HP
MaterialDie-cast aluminum
Pump TypeTrash Pump
Height28.1"
Width24.4"
Depth30.1"
Flow Rate475 GPM
Discharge Diameter4 in
Suction Diameter4 in
Indoor / OutdoorOutdoor
WarrantyQP4TK: 24 months from date of purchase, Kubota OC95-E4 Engine: 36 months from date of purchase, Hoses: 3 months from date of purchase
Resources You will need Adobe® Acrobat® Reader to view PDF documents.
Safety Information
This gas appliance requires a trained technician to install. Improperly connecting gas lines or improperly connecting a gas flue or venting may result in death. By purchasing this item, you are agreeing that you are using a trained technician to install this gas appliance. We will not be responsible for any injury or property damage arising from improper service or service procedures. Whoever installs or services this unit assumes responsibility for any personal injury or property damage which may result. Many jurisdictions require a license to install this equipment.

PROPOSITION 65 WARNING
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