Part Number ESR090 Better than OEM replacement Regulator/Rectifier Plug in replacement unit Uses our latest regulation circuitry for optimum system voltage Manufactured with modern high grade components for optimal performance Comes with a Full One Year Warranty 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. Fits 1980-82 Suzuki GS550L/M1981-82 Suzuki GS650E (chain drive)1981-82 Suzuki GS650G/GL (shaft drive)1983 Suzuki GS650 Katana (chain drive)1982-83 Suzuki GS850G1982 Suzuki GS1000G (shaft drive)1982 Suzuki GS1100EZ (GSX1100EZ)1983 Suzuki GS1100ED/ESD1982 Suzuki GS1100G (shaft drive) Product Details Tire Diameter Speed Rating Load Rating Wall Construction Tire Tube Type Rim Size Product Line Electrosport Plug-In Regulator|Rectifier Part Number ESR090 Fitment Type Unit Sale Qty Style Material Color Size Finish Position Functional Length Cable Sleeve Length Cable Sleeve Travel Driver Seat Length Passenger Seat Length Driver Seat Width Passenger Seat Width Piston/Cylinder Size Piston Size Added Cylinder Stroke Volume Final Engine Displacement Exhaust Configuration Muffler Size Muffler End/Tip Style Windshield Height Windshield Width Handlebar Diameter Ca ARB Compliance Non CARB Complaint CARB Compliant Product Disclaimer Items Included Fitments