Part Number: ESR290 Direct Plug in Replacement Better than OEM replacement Regulator/Rectifier 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performance Comes with a Full One Year Warranty ESR290 is a modern high quality regulator/rectifier that replaces the outdated OEM part on (all non-fuel injected) Honda GL Goldwing models. We designed a new internal circuit that keeps output voltage very stable and we installed it in a modern heat sink design. This ESR290 offers a very stable output voltage across the battery terminals across the RPM range and stays much cooler than the OEM part therefore providing superior reliability. Your Goldwing's accessories need a stable voltage which our regulator/rectifier provides. ESR290 is a plug in replacement and it comes with a full one year warranty. Fits: 1975-79 Honda GL1000 Goldwing1980-83 Honda GL1100 Goldwing Interstate/Aspencade1984-87 Honda GL1200 Goldwing Product Details Tire Diameter Speed Rating Load Rating Wall Construction Tire Tube Type Rim Size Product Line Electrosport Plug-In Regulator|Rectifier Part Number ESR290 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