Premium NT855 N14 Engine Crankshaft Main Bearing Set
High-precision 0.25mm/0.10 undersize bearings for optimal engine clearance and longevity. Includes thrust bearing (3801261) and connecting rod bearings, fully compatible with Cummins NT855/N14 engines. Manufactured with advanced bi-metal alloy (steel-backed aluminum-tin lining) for superior load capacity and heat resistance. Micro-groove finish ensures consistent oil film retention, reducing friction and wear. Ideal for heavy-duty applications: trucking, construction equipment, marine engines, and industrial generators. Restores engine performance in rebuilt or high-mileage Cummins powerplants. Global wholesale pricing—bulk discounts available. Direct factory supply guarantees lowest market rates without compromising OEM-level quality.