I ordered this kit of two bearings to secure the rear idler wheels on my '88 Arctic Cat Jag. I ordered these bearings because I could compare the measurements shown in the picture to the original bearings. They were all sealed in plastic and each bearing was in its own box in a small plastic bag to prevent corrosion. Almost every arctic cat of the era used this bearing, as well as a two-piece plastic bushing that fits the bearing, each with a different part number. I ordered them in advance and they fit these bearings perfectly. I now have parts for everything on this snowmobile. This is a snowmobile, by the way, not a sled.