Injector Insulator Yanmar GM Series - 128275-11490

This injector insulator is a genuine OEM part for Yanmar GM series marine diesel engines. The insulator is installed at the injector and provides proper sealing and thermal isolation between the injector and cylinder head. A worn or damaged insulator can lead to leakage or improper injector seating. Replacing it ensures correct installation and reliable engine performance. Each injector requires one insulator. This is a genuine Yanmar OEM product . Yanmar OEM Part Number 128275-11490 Compatible Yanmar Engines 1GM (7.5 HP) 1GM10 (9 HP) 2GM (15 HP) 2GM20 (18 HP) 2GM20 EU (18 HP) 2GM20 F (18 HP) 2GM20 F EU (18 HP) 3GM (22 HP) 3GM30 (27 HP) 3GM30 EU (27 HP) 3GM30 F (27 HP) 3GM30 F EU (27 HP) Product Information Injector insulator (heat shield / sealing component) 1 piece per injector required Questions about compatibility or Yanmar engine parts? Our marine specialists are happy to help.