Extensive Top End and Bearing Bundle: Package contains one upper head gasket set plus four standard pistons with rings along with complete crankshaft main and connecting rod bearing sets.
Precision 102mm STD Bore Fitment: Specifically designed for Cummins 3.9L 4BT diesel motors using original size specifications to ensure perfect internal clearance without requiring block machining.
High Performance Sealing and Rotation: Features multilayer steel head gaskets plus specialized engine bearings engineered to withstand extreme thermal cycles and high pressure industrial operation.
Verified Equipment Compatibility: Direct replacement for Case 580L backhoes along with various agricultural tractors and stationary power units requiring genuine specification internal parts.
Total Maintenance Assembly Group: Professional group provides all necessary upper seals pins and retainers plus bottom end friction components organized within a single box for efficient repair