This flexible hose fits Cummins engines K19, K38, K50, N14, and NT855. It is a high-quality performance part that ensures optimum fuel system functionality. The hose is manufactured in China and comes with a unit quantity of one. It is compatible with various types of units and is designed to meet the manufacturer part number 3899849. The hose is perfect for those looking to upgrade their fuel system and enhance the performance of their engines.