This regulator rectifier fixes common issues such as no charging, overcharging, battery draining and unstable electrical output. It maintains steady charging voltage to protect the battery and onboard electrical parts from damage. Plug-and-play connection fits the original wiring harness perfectly for fast replacement. Rugged waterproof and anti-corrosion construction adapts to marine harsh conditions, ensuring long-term stable working performance for Yamaha two-stroke outboard engines.