Federal Mogul 1920RA25MM Connecting Rod Bearing Half Shell 0.25mm Undersize

The Federal-Mogul 1920RA25MM is a connecting rod bearing half shell designed for engine rebuilds requiring a 0.25mm undersize bore diameter. This undersize specification makes it the correct choice when connecting rod journals have been reground or turned to restore a smooth surface, allowing proper oil clearance to be re-established during engine reconditioning.

Federal-Mogul is a globally recognized leader in engine bearing manufacturing, producing bearings to original equipment quality standards. These bearings are engineered to precise dimensional tolerances, ensuring consistent crush, proper oil film maintenance, and reliable load distribution between the connecting rod and crankshaft journal.

Key Features:

• 0.25mm undersize bore for use with reground connecting rod journals
• Half shell (individual) configuration — sold as a single bearing half
• Manufactured to OE-equivalent dimensional tolerances for precise fit and oil clearance
• Steel-backed construction for structural rigidity and positive housing seating
• Engineered bearing surface alloy for wear resistance and journal compatibility
• Locating lug design for correct positioning within the connecting rod bore

Ideal for professional engine rebuilders and machine shops performing crankshaft regrinding operations, the 1920RA25MM ensures a reliable, long-lasting bearing interface when installed with proper clearances and clean assembly conditions.