For 118i 120i 318i 320i 520i X1 X3 Z4 E60 E87 E90 2.0L L4 N46B20B N46B20C N46B20E Pistons Rings Set Φ84mm STD Engine Repair Forged aluminum pistons and rings set designed for use with 2.0L L4 engines, including N46B20B, N46B20C, and N46B20E variants.This set is compatible with models such as 118i, 120i, 318i, 320i, 520i, X1, X3, Z4, E60, E87, and E90.The piston diameter is Φ84mm, matching standard engine specifications. The set supports engine and , providing a solution for engine repair or rebuild projects.It includes complete pistons and rings, engineered to restore proper compression and engine function.Designed for straightforward installation, the components fit directly into designated engine types without requiring modifications.Suitable for use by both professional mechanics and experienced DIY users. : This part is made by an independent vendor.Any brand/model mention is for compatibility purposes only.