This oil pump drive chain kit with gear is designed for vehicles equipped with N46 or N42 engines, including models E90, E91, E93, E46, E84, X3, 118i, 120i, and 318i.The kit includes an oil pump chain, crank gear, oil pump gear, tensioner, and guide to support proper engine lubrication and timing.Made from metal components, it is built for and performance under standard driving conditions.The design allows for direct replacement and is suitable for both professional and DIY installation.This kit is intended to maintain smooth of the engine's oil delivery system and reduce premature wear on related components.