3578 Universal Tractor Bearing ConeOne New Aftermarket Replacement Tapered Roller Bearing Cone Universal Fits John Deere, Fits Case International Harvester, Fits Caterpillar and More This single row tapered roller bearing cone (inner race assembly) is a direct fit aftermarket replacement for use in tractors, construction equipment, and agricultural machinery across multiple major brands. The cone works in conjunction with a compatible cup (outer race) to handle both radial and axial