This zinc anode is a genuine OEM part for Yanmar marine diesel engines. The anode is installed in the cooling system to protect internal components against galvanic corrosion. The anode gradually dissolves during use and must be replaced regularly to maintain proper protection of the engine and heat exchanger. This is a genuine Yanmar OEM product . Yanmar OEM Part Number 27210-200200 Compatible Yanmar Engines 1GM (7.5 HP) 1GM10 (9 HP) 6LY3 Series 6LY3-UTP (380 HP) 6LY3-STP (440 HP) 6LY3-ETP (480 HP) Product Information For 6LY3 series: used in heat exchanger For 1GM / 1GM10: used in engine
