Yamaha Rectifier & Regulator Assy

The Yamaha Rectifier & Regulator Assembly is a vital part of a motorcycle’s electrical system. It receives variable AC (alternating current) output from the stator/alternator and converts it into stable DC (direct current), while regulating voltage to protect the battery and sensitive electronics from over‑voltage or under‑voltage.

This assembly ensures consistent and reliable power delivery to lights, ignition, instrumentation, and charging system. By maintaining stable voltage levels regardless of engine RPM, it prevents electrical surges that can damage bulbs, sensors, and the battery, and helps extend the lifespan of all electrical components.

Over time, rectifier/regulator units can degrade due to heat, vibrations, or electrical overload — replacing them with a proper Yamaha‑spec unit restores charging efficiency and reliability. Installing a fresh rectifier/regulator assembly ensures that your bike’s charging system works optimally, keeps the battery healthy, and ensures electrical systems perform consistently every ride.