Description

The 3901432 (0.50 mm) connecting rod bearing is a precision-engineered oversize rod bearing designed for diesel engines that have undergone crankshaft machining or journal resizing. When a crankshaft rod journal is ground undersize by 0.50 mm , this bearing ensures proper oil clearance, stable lubrication, and accurate rod-to-crankshaft alignment. Constructed with high-strength tri-metal bearing materials, the 3901432 bearing provides exceptional resistance to heat, fatigue, and wear—critical for engines operating in heavy-duty conditions. Installing this oversize bearing prevents rod knock, low oil pressure, friction scoring, and premature crankshaft damage, ensuring long-lasting engine health after machining repairs. Ideal for complete engine rebuilds, machining shop repairs, and high-hour diesel engines, this rod bearing delivers OEM-level precision and durability. ✔ Key Features & Technical Advantages OEM-grade 3901432 0.50 mm oversize connecting rod bearing Designed for crankshaft rod journals machined undersize by 0.50 mm Restores correct lubrication clearance and rod stability Reduces friction, heat, and metal contact on crank journals Tri-metal bearing construction ensures long-term durability Eliminates rod knock, oil pressure issues & lubrication instability Essential for diesel rebuilds, in-frame repairs, and machining corrections