Original Japanese Spare Part for High-Performance Water Transfer.

The KOSHIN 0113532 is the factory-original impeller specifically engineered for the SEH-50X-BBR, SE-50X-BEA-1, SE-50X-BDM-1 and  SE-50X-BED-0  series. Designed to handle the high-torque output of the Robin Subaru EY15-3 engine, this cast-iron impeller ensures your 2-inch water pump maintains its maximum head and flow capacity. Also suitable for SEH-50X-BGD-0 with HONDA GX120T2 engine and.SEH-50X-BAE-2 with the HONDA GX120K1WMK.

If your pump is taking longer to prime or isn't moving as much water as it used to, a worn impeller is likely the cause. Replacing it with a genuine KOSHIN part restores factory efficiency and protects your engine from unnecessary strain.

Key Technical Details:

• Engine Compatibility: Specifically threaded and balanced for the Robin Subaru EY15-3 engine shaft.

• Pump Series: Fits KOSHIN SE-50X-BEA-1 (2" / 50mm clear water pump).

• Premium Construction: Cast from high-durability iron to resist abrasion from sand and small silt particles.

• Original Japan Quality: Direct import from KOSHIN Ltd. Japan for guaranteed fitment and performance.

Specifications:

• Part Number: 0113532

• Material: Heavy-Duty Cast Iron

• Connection Size: 2-inch (50mm) pump inlet/outlet

• Country of Origin: Japan

Maintenance Note: When installing a new impeller (0113532), it is the perfect time to replace the Mechanical Seal and the O-ring (Volute Casing Seal) to prevent leaks and maintain suction power.