ESR090 is a high quality regulator/rectifier that replaces the not-so-reliable OEM Suzuki part. Power handling of our ESR090 is superior, and the part is designed to be a plug in replacement. We have incorporated a heat sink that gets rid of internal heat to the housing quickly and efficiently, making for a very reliable unit. This regulator/rectifier regulates all three phases coming from the stator, unlike the stock unit which only regulates 1 or 2 phases (depending on the model). Three phase regulation is a major step towards reliability on these Suzuki GS models. Like all regulator/rectifiers manufactured by ElectroSport ESR090 also comes with a full one year warranty. Input: 3x Yellow +12V Output: Red Ground: Black