; HomeHeavy Duty Truck PartsEngines & Engine PartsEngine AssysCummins6BT 5.9Used 1997 Cummins 6BT 5.9 Engine Assy Used 1997 Cummins 6BT 5.9 Engine Assy Unfortunately this part is temporarily unavailable. View other Cummins 6BT 5.9 Engine Assys