Yamaha - Piston sub assy - 65W-4381B-00-00Yamaha Piston Sub Assembly 65W 4381B 00 00 Enhance the performance and reliability of your Yamaha outboard engine with the Yamaha Piston Sub Assembly 65W 4381B 00 00. This essential component is designed to provide optimal compression and efficient combustion, ensuring your engine runs smoothly and efficiently. Engineered to Yamaha's high standards, this piston sub assembly offers exceptional durability and reliability, delivering consistent