Honda WB30 Petrol Water Pump | 3 Inch, 1100 L/min High-Volume Pump
Built for the job
Honda WB30 Petrol Water Pump | 3 Inch, 1100 L/min High-Volume Pump
The Honda WB30 is the highest-volume pump in Honda's general-purpose petrol range, a 3 inch centrifugal pump that moves up to 1,100 litres of water every minute. Powered by the commercial-grade Honda GX160 4-stroke engine, it is built for the jobs where sheer volume matters: large-scale dewatering, flood relief and moving big quantities of water fast.
What the Honda WB30 is used for
- High-volume dewatering of large excavations, basements and flooded ground
- Emergency flood relief and rapid water clearance
- Agricultural water transfer, bowser filling and land drainage
- Utility and contractor work
- Construction and civil engineering projects
- Utility and infrastructure maintenance
- Irrigation and agricultural water transfer
- Wash down applications
Key features and benefits
- Commercial-grade Honda GX160 engine: easy starting, fuel efficient and durable in demanding conditions
- Cast iron volute and impeller for resistance to abrasive silt and sand
- Silicon carbide mechanical seals for leak-free operation and long pump life
- Oil Alert system that shuts the engine down if oil runs low
- Anti-vibration mounts within a protective steel frame
- 3 inch (80mm) suction and discharge ports for maximum flow
Performance
- Maximum discharge: 1,100 L/min
- Maximum total head: 23m
- Maximum suction head: 7.5m
- Ports: 3 inch (80mm) suction and discharge
- Engine: Honda GX160, 163cc
- Dry weight: 26kg
- Power: 5.5hp / 3.6kW
Which Honda pump do you need?
The WB30 is the high-volume choice, moving almost double the water of the WB20. Note that it does this at a lower maximum head (23m versus 32m), so if you need more lift or pressure rather than volume, the 2 inch Honda WB20 is the better fit. For lightweight transfer around the home, see the 1 inch Honda WX10. See the full comparison below.
All three are Honda 4-stroke petrol water pumps. The right one depends on how much water you need to move and how far you need to lift it.
- Honda WX10: 1 inch, up to 140 L/min, 36m head, 6.1kg. Lightweight transfer around the home, garden and boat.
- Honda WB20: 2 inch, up to 620 L/min, 32m head, 21kg. The general-purpose site, farm and flood standard, and the choice when you need more lift.
- Honda WB30: 3 inch, up to 1,100 L/min, 23m head, 26kg. The high-volume choice for large dewatering and flood, when you need maximum flow.
Construction and Durability
Honda WB30 pumps are built with robust aluminium pump housings, giving them a strong but lightweight construction that is easy to move and set up on site. Their self-priming centrifugal design helps make operation quick and straightforward, while ceramic mechanical seals provide long-lasting reliability and protection against wear.
On the WB20 and WB30 models, cast iron volutes and impellers provide added durability for more demanding applications. Oil Alert engine protection also helps reduce the risk of engine damage during operation.
Serious Professional Performance
The Honda WB30 Petrol Water Pump is built for demanding site use, with the capacity to handle water containing light silt and sand. This makes it a dependable choice for construction sites, land drainage, irrigation, and clearing floodwater where a larger flow rate is required.
Built for Tough Conditions
Designed as a durable dirty water pump, the Honda WB30 features an abrasion-resistant cast iron volute and impeller, helping it withstand more demanding pumping conditions. Specially designed vanes support a larger discharge capacity, while the silicon carbide mechanical seal provides added protection when handling water containing fine debris.
The pump can handle solids up to 6 mm in size and is supplied with a strainer to help prevent larger particles from entering the pump body.
Reliable, Easy Starting
Powered by a commercial-grade Honda engine, the WB30 is designed for reliable starting and consistent performance. Automatic decompression reduces the pull force required, making the pump easier to start even in challenging site conditions.
Why choose the Honda WX & WB petrol pumps?
Honda WX and WB pumps are trusted for their build quality, ease of use and dependable performance. With a range of sizes and flow rates available, they offer a reliable solution for both light‑duty and higher‑capacity pumping tasks, making them ideal for contractors, utilities and hire companies that need proven petrol‑powered water pumps.
Operational Details
- Powered by Honda 4‑stroke petrol engines
- Self‑priming centrifugal pump design
- Lightweight and highly portable
- Ceramic mechanical seals for increased reliability
- Suitable for clean and lightly silty water
The pump features a cast iron volute and impeller for durability, together with Oil Alert engine protection. It has a 3.1 litre fuel tank, providing an approximate runtime of 1 hour 54 minutes.
Optional Extra
What’s in the box
1 × Honda WB30 petrol water pump
1 × Set of hose couplings
Washers, clips and strainer
Please note: hoses are not included and must be purchased separately.

