Description
The Koshin SEV-80X (code 050-004) is a 3″ petrol water pump driven by Koshin’s own K180 four-stroke engine. Koshin rates it at up to 1,050 litres per minute and 27 metres of head, with a maximum suction lift of 8 metres. It is the highest volume pump in the SEV range, built for moving a lot of clean water quickly.
The 2″ Koshin SEV-50X shares the same engine and head, and suits jobs that need up to 620 l/min with a lighter, smaller pump. For a 3″ clean water pump with a Honda engine, see the Koshin SEH range.
The 179 cc Koshin K180 engine is rated at 3.1 kW (4.2 PS) at 3,600 rpm and runs on ordinary unleaded petrol. Its 3.6 litre tank gives about 2.4 hours of continuous running, and the engine starts with a recoil starter. Koshin compared the SEV-80X with its earlier SEV engine and found the K180 runs around half as long again per tank. The pump has 3″ BSP male threaded connections, measures 543 x 425 x 460 mm and weighs 28.7 kg. Koshin supplies it with a strainer, two hose couplings, three hose bands and an engine tool set.
Features
- Koshin K180 four-stroke petrol engine, 179 cc
- Up to 1,050 l/min and 27 m head
- Maximum suction lift of 8 m, guaranteed by Koshin
- 3″ BSP male threaded connections
- About 2.4 hours on a 3.6 L tank
- Recoil start
- Net weight 28.7 kg
Applications
- Flood irrigation and high volume sprinkler supply
- Filling large tanks, bowsers and reservoirs
- Emptying ponds, pools and storage tanks of clean water
- Clean water transfer for farms, contractors and hire fleets
The SEV is a clear water pump. It is not designed for muddy floodwater, sludge, sewage or water carrying stones and debris: for dirty water, see the Koshin STH semi-trash pumps, and for heavier solids the Koshin KTH compact trash pumps. Fill the casing with water before starting and never run the pump dry. Do not use it to pump petrol, oil or any other flammable liquid.

The Koshin SEV range
| Model | Connections | Engine | Max flow (l/min) | Max head (m) | Fuel tank (L) | Run time per tank | Net weight (kg) |
|---|---|---|---|---|---|---|---|
| SEV-25L | 1″ | Koshin KC26 two-stroke, 26 cc | 110 | 32 | 0.6 | About 50 minutes | 5.5 |
| SEV-50X | 2″ | Koshin K180 four-stroke, 179 cc | 620 | 27 | 3.6 | About 2.6 hours | 25.2 |
| SEV-80X | 3″ | Koshin K180 four-stroke, 179 cc | 1,050 | 27 | 3.6 | About 2.4 hours | 28.7 |
Figures are from Koshin’s catalogue and data sheets. Every model has a maximum suction lift of 8 m. See the Koshin SEV petrol water pumps range page for help choosing and answers to common questions.










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