1set Oil Pump Guide Rail Drive Chain Kit For 235 335 435 535 640 740 X4 X5 X6 N55 Auto Parts This oil pump guide rail drive chain kit is designed for use with N55 engines and serves as a direct replacement for parts.It fits specific models including 235, 335, 435, 535, 640, 740, X4, X5, and X6 variants.The kit includes the drive chain and guide rail, providing a complete solution for the oil pump system.Constructed from steel, the components are built to endure regular operating conditions.The design follows specifications to proper fitment without requiring modifications during installation.It supports both tensioner and non-tensioner versions of the N55 engine platform.Installation is straightforward, intended as a direct swap for existing parts.This kit helps maintain engine and operational efficiency, offering a update to the oil pump assembly.