8N-8972-040 Caterpillar Main Bearing, .040 Oversize, – Part No. 8N-8972-040| 3204 Engines

The Caterpillar Main Bearing 8N-8972-040 is a .040-inch (1.02mm) oversize main bearing designed for Caterpillar 3204 engines. It is essential for restoring proper crankshaft clearance in engines that have undergone machining or wear. Manufactured from high-strength alloy steel, this bearing ensures superior durability, high load-bearing capacity, and resistance to wear, making it ideal for heavy-duty industrial, construction, and agricultural applications.