Wheel bearings typically fail from water and dirt contamination.
Fits:
ARCTIC CAT
250-2X4 99-05, 250-4X4 01-04, 300-2X4 98-03, 300-4X4 98-04, 375-2X4A 02, 375-4X4A 02, 400-2X4 98-01, 400-4X4 98-04, 400-4X4A 03-04, 400-4X4TBX 04, 400I-2X4 03-04, 400I-2X4A 03-04, 400I-4X4 02-04, 400I-4X4A 03-04, 454-2X4 97-98, 454-4X4 96-98, 500-4X4 98-02, 500-4X4A 00-02, 500-4X4TBX 02-04, 500-4X4TRV 03-04, 500I 02-04, 500IA 02-04, 650VTA 04