This water hose is a genuine OEM part for Yanmar 1GM and 1GM10 marine diesel engines. The hose connects the engine block (T-piece) to the thermostat housing and ensures proper coolant flow through the engine. The hose features a formed bend to fit correctly between the components and maintain optimal flow. This is a genuine Yanmar OEM product . Yanmar OEM Part Number 128170-49050 Compatible Yanmar Engines 1GM 1GM10 Questions about compatibility or Yanmar engine parts? Our marine specialists are happy to help.
