The KOSHIN SEH-100X is a heavy-duty, engine-driven clear water pump designed for high-flow irrigation, dewatering, and emergency water transfer. Built for reliability and portability, this 4" (100 mm) gasoline pump pairs a rugged pump housing with a proven Honda GX-series engine for consistent performance in agricultural and industrial applications.

The SEH-100X delivers excellent hydraulic performance with a maximum flow of 1,450 L/min (≈383 USG/min), a maximum total head of 28 m, and a maximum suction lift of 8 m — ideal for sprinkler irrigation, pond draining, filling reservoirs, and firefighting support. The pump is self-priming and accepts solids up to 3 mm, making it versatile for clear to slightly contaminated water tasks.

• Connection: 100 mm (4") inlet/outlet with external pipe thread (BSP or NPT compatible)
• Engine: Honda GX240 4‑stroke gasoline engine (rated ~4.6 kW / max ~5.9 kW)
• Fuel tank: 5.3 L — approx. 2.5 hours continuous operation
• Net weight: ~54 kg; compact, metal frame for transport protection
• Standard accessories: strainer, hose couplings, hose bands and engine tool set

Technical specifications and parts information as supplied by Koshin and authorized distributors.

Constructed with aluminum alloy housings and durable impeller components, the SEH-100X focuses on longevity, corrosion resistance, and stable operation under continuous use. The robust frame and protective mountings help reduce vibration and protect the engine/pump assembly in field conditions. Typical use cases include rice-field irrigation, well and reservoir filling, fish-farm water exchange, construction dewatering, and high-capacity garden or orchard irrigation.