4W-5703 Caterpillar Connecting Rod Bearing 1.27mm Undersize, – Part No. 4W-5703| 3406/B, 3408/B, 3412/B

The Caterpillar Connecting Rod Bearing 4W-5703 is a 1.27mm undersize bearing designed for Caterpillar 3406B, 3408B, and 3412B engines. This precision-engineered component compensates for crankshaft wear, ensuring proper fitment and restoring smooth engine operation. Made from high-quality alloy steel, the 4W-5703 bearing reduces friction, minimizes wear, and extends engine life. Built for heavy-duty industrial, construction, and agricultural applications, this bearing withstands extreme loads and harsh operating conditions, ensuring long-term durability and reliability.