Voltage Regulator Rectifier Compatible With 900 9R 1998 1999 SH579A-12 21066-1109

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Model Compatibility: Fits motorcycles with model designation SH579A-12 and year range 1998–1999, including variants labeled 900 and 9R.Part Number Match: Direct replacement 21066-1109 used in the specified motorcycle applications.Functionality: Restores voltage regulation and AC-to-DC rectification function as designed for the referenced motorcycle system.Application Scope: Intended for use in the motorcycle models and years explicitly listed in the product title.Installation Purpose: Designed to replace the voltage regulator rectifier unit without modification to the existing wiring or mounting configuration.