Alternator adapter for whizzer WC1 motorbikes. Changes from current new plug to old plug of 1999 WC1 main wiring harness. If you just purchase our new ceramic engine assembly for your 1999 whizzer WC1 motorbikes, please let us know and we will offer this item with engine.We are offering complete parts and kits for a home-built Cruzzer Motorbikes. The assembling processes are shown by videos on our website "cruzzermotorbikes.com". For more detailed information, please check our blog "wc1manufacturer.wordpress.com" by Google search.NOTICE: We, the seller of listed item or items, are NOT Whizzer USA. We DO NOT represent Whizzer USA. We are NOT affiliated with Whizzer USA or the Trademark Whizzer, Whizzer USA, Whizzer motorbike. We manufacture and sell aftermarket parts that will fit on certain Whizzer motorbikes and non-Whizzer scooters. We do not manufacture, offer or sell Whizzer brand parts. Any use of the term Whizzer or Whizzer models in the listing are solely for item description purpose only.