Trailer Adapter (4-pin Trailer) for Polaris RZR, Ranger, General, Xpedition, Can-Am X3, Commander, Defender 4-pin Trailer Adapter Wiring Harness to pull a Trailer with your UTV or Side by Side! *And if paired with one of our turn signal kits, this will allow the use of the turn signals on the trailer as well. Included is a dust cap over the trailer 4-pin connector. The Turn Signal option is compatible with our Turn Signal Kit and allows the Trailer to work with Turn Signals and Brake lights. Fits the following Side X Sides: 2018+ Polaris General 2019+ Polaris Ranger* 2022+ Polaris Ranger SP 570 2018+ Polaris RZR** 2022+ Polaris RZR Pro R/ Turbo R 2018+ Can-Am X3 2022+ Can Am Commander 1000 2019+ Can Am Defender