This fuel injection pump is designed for use with John Deere 4024 5030 engines, model 244J 304J. It is a high-quality performance part that ensures optimal fuel system performance. The pump is manufactured by John Deere under part numbers RE527598 and SE502049. This fuel pump is ideal for those who want to enhance the performance of their John Deere equipment. It is a reliable and durable component that provides consistent performance. Whether you're looking to replace a worn-out pump or you simply want to upgrade your fuel system, this is the perfect choice.