Made in house wiring harness to adapt a car normally equipped with a CWA50 ( or bmw pump) to a CWA100-2 or CWA100-3 waterpump( specify in the drop down then add to cart). Waterpump harnesses will come with unpinned stock side connector . You want larger wire gauge to run a CWA150 and it is recommended to use this pigtail to activate a relay setup ( I have found the adapter harness with 18g wire sometimes burn when using 100% duty cycle with CWA150 ) please send a message with any questions.
Will come un pinned to be universal . If you need a wiring diagram shoot an email with make and model then one can be provided.