- Powerful Output Under Load: This gas powered water pump delivers strong and stable water flow even under load. It maintains consistent pumping performance during continuous water transfer or high-intensity operation
- High Lift Performance: Designed with high head lift, this semi trash water pump moves water to higher elevations with ease. Ideal for hillside irrigation, construction site drainage, and applications that require strong lift capability
- No Electricity Required: Powered by a fuel-efficient engine, this gas water transfer pump operates independently from electrical outlets. Ideal for farms, remote locations, and emergency situations during power outages
- Durable Construction: Built with an aluminum alloy pump body and a cast iron impeller, this high pressure water pump provides enhanced wear resistance and long-term durability for frequent use. Note: Use with a strainer filter screen during operation
- Versatile Applications: This gasoline engine water pump is suitable for water transfer, irrigation, and drainage tasks. Easily move water from ponds, tanks or ditches to fields, support farm irrigation, or handle routine drainage work with confidence
- Item Model Number
- RT50ZB26-3.8Q
- Type
- Frame Mount
- Port Size
- 2 in / 50.8 mm
- Max Horsepower
- 7 HP
- Speed
- 3810 RPM (No-Load) / 3680 RPM (Load)
- Max Flow Rate
- 158 GPM
- Max Head Lift
- 105 ft / 32 m
- Max Suction Lift
- 29 ft / 8.9 m
- Fuel Type
- Gasoline
- Minimum Fuel Consumption
- < 395 g/kW·h
2 Inch Semi Trash Water Pump with 7HP Engine and 158 GPM Flow Rate for High-Volume Transfer
A 7 HP gasoline engine powers this 2 inch semi trash water pump. It has a maximum flow rate of 158 GPM through a 2-inch (50.8 mm) port. This flow capacity is ideal for high-volume water transfer applications such as draining ponds, irrigating fields, dewatering building sites, and handling pools, where large volumes of water must be moved quickly and continuously over long periods of operation without loss of performance.
The engine runs at 3680 rpm under load. The shaft speed is constant, and the flow is stable during continuous or high-intensity pumping cycles. This pump will not throttle down under pressure like lower-rated units. This pump will maintain its rated output of 158 GPM over long run times, making it reliable for continuous water movement on farms, remote sites, and emergency drainage situations where a steady flow rate is critical to getting the work done efficiently.
3680 RPM Load Speed and 105 ft Max Head Lift for Elevation and Long-Distance Pumping
The engine runs at 3810 RPM when not loaded and stabilizes at 3680 RPM when loaded, with steady rotational speed during pumping cycles. This rated load speed directly supports the 105 ft (32 m) maximum head lift rating, the greatest elevation the pump overcomes to convey water vertically against gravity during continuous operation without interrupting flow.
With a 105 ft head lift rating, this 2-inch semi-trash water pump is perfect for hillside irrigation, filling elevated tanks, and multi-level building drainage when water must be pumped against considerable vertical resistance. This enables the transfer of water to higher delivery elevations without adding booster equipment, thereby maintaining a compact, self-contained overall pumping configuration for field and site deployment scenarios that require uniform high-elevation water-transfer performance.
29 ft Max Suction Lift for Dependable Water Draw from Ponds, Tanks, and Ditches
The pump has a maximum suction lift of 29 ft (8.9 m) and can take water from sources well below the pump unit. This suction range exceeds the 23 ft rating of many comparable machines, allowing access to deeper ponds, lower-lying irrigation ditches, flooded excavations, and holding tanks where the water surface is considerably below the pump’s ground-level mounting location.
With a 2-inch (50.8 mm) port entrance, there is more than enough flow volume at that suction distance to reduce the likelihood of cavitation or a drop in flow at maximum draw depth. The 29 ft suction lift rating allows operators greater positioning flexibility when using this 2 inch semi trash water pump over terrain where water sources are located at a large depth below the intake point for farm irrigation, emergency drainage, and water transfer from natural sources.
2 Inch Semi Trash Water Pump with Cast Iron Impeller and Aluminum Alloy Body for Lasting Durability
The aluminum alloy pump body provides a lightweight, structurally strong, corrosion- and physical deformation-resistant housing in a variety of field and site environments. The internal impeller is cast iron, a material selected for its superior wear resistance compared to plastic or aluminum alternatives, thereby maintaining its geometry and pumping efficiency through repeated contact with sediment, light solids, and abrasive particles carried in semi-trash water transfer applications.
A good balance between overall unit portability and the durability of internal components for frequent heavy use in farm irrigation, pond management, and construction site drainage is provided by the aluminum alloy housing and cast iron impeller. A strainer filter screen must be used during all operating cycles to protect the cast iron impeller from debris that exceeds this 2 inch semi trash water pump’s semi-trash handling capabilities.
Gasoline Engine at <395 g/kW·h Fuel Consumption for Independent Off-Grid Operation
This pump is powered entirely by gasoline, with no electrical connection, making it fully deployable in isolated agricultural areas, rural construction sites, and emergency scenarios where grid power is unavailable. The engine’s rated minimum fuel consumption of less than 395 g/kW·h at 7 HP indicates efficient fuel use, reducing operating expenses during long continuous runs in the field.
The engine will deliver full pumping output of 158 GPM at 3680 RPM with load, without excess fuel draw. This is a consideration when the unit will be running for many hours during large-scale irrigation or flood drainage activities. The gasoline-only operation dramatically increases deployment flexibility, with this pump capable of operating anywhere fuel is available, fully independent of electrical infrastructure, power outlets, or generator supply at the work site.
Frame Mount Design with 2 In Port and 25 ft Discharge Hose for Portable Site Deployment
The pump is mounted on a heavy-duty frame, providing structural stability when operating on uneven field or site terrain, with the 7HP engine and pump assembly housed within the frame. The stiff frame dampens vibration at 3680 RPM under load, holding the device in place while actively pumping, without requiring anchoring or extra stabilizing hardware on most ground surfaces encountered in field operations.
Includes a 25 ft discharge hose that connects directly to the 2-inch (50.8 mm) discharge port, eliminating the need to purchase a hose separately during initial setup. This combination of frame-mount stability and included discharge hose makes this unit a self-contained pumping system, suitable for quick deployment in irrigation fields, pond sites, pool areas, and construction drainage applications.
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