Main Bearing Set (0.25 mm / 0.10" Undersize) for Mazda E2200 & Kia Besta 2.2L R2 Engines // M316A

High-precision Main Bearing Set specifically designed for Mazda E2200 and Kia Besta models equipped with the 2.2L R2 diesel engine series. These are 0.25 mm Undersize (First Repair Size) bearings, cross-referenced as M316A, engineered for professional engine overhauls where the crankshaft main journals have been ground. Manufactured from premium, high-fatigue resistant materials to ensure smooth crankshaft rotation and maintain precise oil clearance under heavy-duty commercial operations. Precision-made to meet or exceed OEM specifications, these bearings are essential for restoring the structural reliability of the rotating assembly during a professional rebuild.