I have a 2003 500 4x4. It uses part # 0402-275 for all 4 bearings. I go through rear bearings like crazy. I put 2 sets in each side last year. One wheel is all floppy again. I put OEM in the first time and some off eBay the second time. The oem were not a lot better than the Chineese ones from eBay. Does anyone know of a good source for these and some that will actually last more than 600 miles before the wheel starts to flop around. They don't make noise. What is happening is if you jack it up you can rock the wheel side to side. The axle nut are torqued to spec. When new the wheel does not move. After a while it starts and then gets worse until I once again replace them.