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 to fit 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 supports proper oil pump , contributing to consistent engine performance and.Constructed with metal components, the kit is built to endure regular use.The design allows for direct replacement of existing parts without modifications, enabling a straightforward installation process.Components included are the chain, crank gear, oil pump gear, tensioner, and guide, providing all necessary elements for effective oil pump function.The kit is engineered for precise fitment, as part of routine maintenance or repair.