Is your Polaris ATV or side-by-side running rough, misfiring, or just not starting? A faulty ignition coil is a super common culprit. This replacement coil is designed to fit a HUGE range of Polaris models – we're talking ACE 150, 500, 570; Sportsman 325, 500, 550, 570; Outlaw 70; RZR 150, 570; Ranger 150, 500, 570, ETX; and even the newer PRO XD models from 2022-2023. It directly replaces the OEM part numbers 4011834 and 4015072. PLEASE, before you buy, double-check the list in the description or the product images against your specific vehicle's year and model to make absolutely sure it fits. The package includes one ignition coil, ready to install. This is a cost-effective way to get your machine running smoothly again without paying dealership prices. Neivilu, the seller, offers a 6-month replacement warranty and lifetime technical support if you run into any issues, which is great. This is a straightforward repair for most DIYers with basic mechanical skills – just remember to disconnect the battery first! Get back on the trail faster with this reliable replacement part.