This crankshaft adapter is designed to fit Cummins engines K19, K38, K50, N14, and NT855. It is a high-quality unit that is perfect for commercial truck parts and accessories. The adapter is made in China and comes with a manufacturer part number of 3033628. It is sold as a unit and comes in a quantity of one. The adapter is specifically designed for crankshafts and is a vital component for the proper functioning of the engine. It is compatible with various Cummins engines and is a must-have for anyone looking to replace their crankshaft adapter. Buy this unit today and ensure that your engine is running smoothly and efficiently.