I have a new 900 Trail and I’ve been looking at cargo boxes and coolers. I’m posting the following info in case anyone else is looking for a similar solution.
I finally settled on the Polaris Lock & Ride Cargo box, item 2881193.
It is smaller in width than the Lock & Ride Cooler/Cargo box, item 2881556, and $150 cheaper. My goal was to have a separate cooler for a number of reasons. I used the $150 in savings (at least that’s the logic I used with my wife) to buy a Yeti Hopper 20.
The Yeti Hopper 20 fits perfectly beside the Lock & Ride 2881193, but would not fit with a wider cargo box.
Here are a couple of pics. I included one to show the clearance from the rear hinges to the roll cage. It is exactly 3" and when opening the lid, the top hinge reduces that by a 1/4".