Advanced premium off-road wheel and axle bearing kit contains all elements required for a full service of your wheel hub Factory-Links ball bearing features a dedicated off-road design with dust seals that offer the ultimate protection against the intrusion of contaminants such as water, mud, and dust Nitrile Butadiene rubber double-lip oil seals and DINP6 - ABEC3 ball bearings have established a categorical improvement over conventional bearings Bearings are packed with a heavy-duty premium marine grease that features special thickeners which allows it to be virtually waterproof to provide unsurpassed rust and corrosion protection - Arctic Cat 400 4x2 (2000, 1999, 1998); Arctic Cat 400 4x4 (1999, 1998, 2000); Arctic Cat 454 4x2 (1997, 1998); Arctic Cat 454 4x4 (1997, 1996, 1998); Arctic Cat 500 4x4 (1998, 1999)