Fits: Fits multiple Polaris ATV / UTV Models (See Product Description for full fitment list) OEM Replaces OEM Part #: 3514635, 3514917, 3515087, 3585502 Dimensions: 40mm ID, 74mm OD, 40mm wide Replacement Front and Rear Wheel Bearings:Our bearings have a rubber coating on the outside to form an ideal seal on the hub to ensure constant pressure and extend the life of the bearing. Excellent Qualit:Precise and versatile bearings, 100% dimensional tolerance, good for high speed and quiet occasions.