Caterpillar Incorporated 6I-8849 Cone Bearing

The Caterpillar 6I-8849 Cone Bearing is a genuine Cat tapered-roller cone designed for heavy-duty drivetrain and final-drive applications. Specified with an inside bore of 66.675 mm, this cone bearing provides the precise fit and load-carrying capability Cat equipment requires in axle and transmission assemblies. The part number is 6I-8849, and it is commonly cross-referenced as 7K0394 or 7K394 in compatibility databases and aftermarket catalogs, reflecting its role as a cone-bearing component in Caterpillar driveline systems. In practice, the 6I-8849 is used in axles, final drives, and other drivetrain components where a robust tapered-roller bearing cone is needed to support high radial and axial loads under demanding operating conditions. Caterpillar specifies these bearings for reliable operation in severe-duty environments, and official Cat Parts Store listings confirm the exact bore dimension and cone-bearing designation, helping technicians confirm precise fitment for compatible Cat gearboxes and final-drive housings.