2003 Trail Boss 330
#1
#2
You have the ecm module that contains the regulator/rectifier. Old part # was 4010697,changed to 4010944. Item#18 on the parts break down. Check around on price as it varies from site to site. 2 Wheel Pros has the cheapest I've found so far. $213. 4010944 Polaris Module, Electronic, Control $213.71 - 2WheelPros Minks makes regulators for the older models along with reverse limiter modules.https://www.ebay.com/itm/VOLTAGE-REG...-/261699343158