Honda WT40XK3A Self-Priming Full Trash Pump (25380 GPH, 4in, GX390 Engine, 1-1/16in Solids)

Description

Honda Motor Co., Ltd. WT40XK3A Self-Priming Full Trash Pump (25,380 GPH, 4in, GX390 Engine, 1-1/16in Solids)

The Honda WT40XK3A Self-Priming Full Trash Pump is a heavy-duty 4-inch contractor-grade water pump engineered for large-scale construction dewatering, flood control, and industrial water transfer applications. Powered by the robust Honda GX390 4-stroke OHV engine, this pump delivers exceptional performance, high durability, and reliable operation in the most demanding job site conditions.

Built as a full trash pump, the WT40XK3A is designed to handle dirty water containing sand, mud, and solids up to 1-1/16 inch (27 mm) without clogging or performance loss. Its self-priming centrifugal design allows for fast startup and continuous pumping even in harsh environments with unstable water conditions.

With a maximum flow capacity of 25,380 GPH (423 GPM), this model is ideal for contractors, rental fleets, municipalities, and emergency response teams that require powerful, high-volume pumping in a portable 4-inch configuration.

Key Features

• Powerful Honda GX390 industrial engine for high-output performance
• High flow capacity up to 25,380 GPH (423 GPM)
• Handles solids up to 1-1/16 inch (27 mm)
• Self-priming centrifugal trash pump system
• Heavy-duty construction for extreme job site conditions
• Portable 4-inch contractor-grade design
• Excellent fuel efficiency for long runtime operation
• Reliable performance in muddy, sandy, and debris-filled water
• Rugged steel frame for durability and transport protection
• Trusted Honda engineering for long service life

Applications

• Large-scale construction dewatering
• Flood and stormwater removal
• Municipal water management
• Infrastructure and highway projects
• Utility and pipeline construction
• Agricultural irrigation and drainage
• Emergency disaster response
• Industrial site water transfer

Honda WT40XK3A Self-Priming Full Trash Pump (25380 GPH, 4in, GX390 Engine, 1-1/16in Solids): Buying Considerations

The Honda WT40XK3A Self-Priming Full Trash Pump features a 4-inch design with a GX390 engine, delivering up to 25,380 GPH. Built for heavy-duty construction and flood control, it handles dirty water and solids up to 1-1/16 inch with reliable high-performance Honda engineering.

Before ordering the Honda WT40XK3A Self-Priming Full Trash Pump (25380 GPH, 4in, GX390 Engine, 1-1/16in Solids) from Honda, review the points below against your actual site conditions and workload. Published specifications describe the equipment under test conditions, and real-world performance depends on how closely your application matches those conditions. Buyers in the United States, Canada, and Asia should also confirm local voltage and frequency requirements, applicable safety or emissions standards, and freight or import logistics for the destination before finalizing an order.

What to Check Before You Buy

• Define required flow and total dynamic head at the discharge point – engine-driven pumps are commonly undersized when only flow rate is considered.
• Check suction lift, priming method, and maximum solids size the pump can handle without clogging.
• Verify fuel type and runtime requirements match the application, especially for extended dewatering or irrigation jobs.
• Confirm hose/fitting size matches the pump's rated port size to avoid unnecessary friction loss.

How much reserve capacity should an engine-driven pump have over the calculated requirement?

A reasonable margin accounts for pipe friction losses, fitting losses, and any future demand growth – undersizing based purely on a theoretical flow calculation without real-world losses is a common reason pumps underperform once installed.

For sizing help across the full Engine Driven Pumps category, compare specifications side by side before committing to a specific model, and confirm current pricing, availability, and freight details for your location. Keep the supplier data sheet and any acceptance criteria on record for future maintenance and replacement decisions.