This heavy-duty starter solenoid relay is a perfect direct replacement for Polaris Sportsman 500 HO 4X4 year 2003, compatible with cross OEM numbers 3085521, 4010939 and 4011357.

Adopting premium pure copper winding and thickened conductive contacts, it delivers stable high-current transmission during engine starting, solving common issues like intermittent start, clicking sound only and starter failure to engage. The fully sealed waterproof and dustproof shell offers strong protection against mud splashes, humidity and vibration, ideal for ATV off-road daily use.

Same as original factory dimension and mounting position, it supports simple bolt-on installation and plug-and-play connection. Quickly repairs starting system faults and restores stable ignition performance for your Polaris Sportsman 500 HO 4X4.