This is a New and Improved Regulator Rectifier for all 1991 Harley Davidson XL models with battery only.This aftermarket part is designed for use on 18 and 22 AMP systems. This Re-Designed unit uses the latest technology and equipment making these units very sturdy and reliable. This regulator rectifier has been manufactured to precisely control voltage and current, maximazing power without risking damage to the generator. Having accurate voltage control is needed to control a proper charging rate on the battery.
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