This is a super high quality fan and it was a piece of cake to install. Complete bolt-in replacement of the existing factory fan assembly. I've read some of the other reviews that complained about the connector or about the fan not triggering from the temperature sensor. I didn't experience any of those issues and I believe the other reviews were based on lack of knowledge by the poster. The connector that came with this fan plugged into the factory plug and works identical to the factory fan. If your temp sensor is bad, you might not be getting 12V power (ever) or it might be on all the time. If your fan isn't cycling on and off as expected, you need to do a test of your temp sensor which plugs in by the thermostat housing on the right side of the quad behind the CVT air duct. Easy to access. Google it.