Wheel bearings are dangerously low on grease from the factory – now you can quickly and easily add grease to your wheel bearings with this handy toolIt handles all the dirty work for you, just remove the wheel and axle nut, slide the greaser in place and pump it full of greaseEven old bearings will benefit, getting rid of any water or dirt that may have built up in the bearing, possibly causing premature failureBillet aluminum construction with multiple grease grooves make the job quick, clean and easy44 mm greaser is designed to service Polaris 44 mm ID wheel bearings works with Polaris bearings 3514822, 3514699, 3514924, 3514627 or equivalent