Oil Pump Drive Chain Kit For N40B16A N46B20C E90 E91 E93 E46 E84 X3 118i 120i 318i N46 N42 1/3/5 Series Z4 X1 X3 Car Parts This oil pump drive chain kit is designed for compatibility with a range of models including N40B16A, N46B20C, E90, E91, E93, E46, E84, X3, 118i, 120i, 318i, N46, N42, 1/3/5 Series, Z4, and X1.It proper of the engine's oil pump, supporting consistent performance and extended component life.Constructed with metal components, the kit is built to endure regular use under typical operating conditions.The design allows for direct replacement of existing parts without modifications, enabling straightforward installation.Components included are the chain, crank gear, oil pump gear, tensioner, and guide, providing all necessary elements for functional oil pump drive system maintenance.The kit supports engine function through precise fitment and materials, making it suitable for use during repair or routine maintenance procedures.