Re-Designed and Improved Kawasaki KZ550A KZ 550A Regulator Rectifier has a higher output capacity than the original part. Designed to stop overcharging and dissipate extra voltage quickly with 8% better Performance than the original part.
One of the several oem numbers that applies to this part is the following:OEM# 21066-1030
* The brown wire has been eliminated from this upgraded design.
*There are two different regulator rectifiers used for the KZ550s. If your bike has 3 yellow wire coming from the stator then this is the correct Regulator Rectifier for you. If you have 2 wires coming from the stator please contact us.