URO Parts Aluminum Power Steering Pulley E9x M3As robust as the S65 and S85 engines may be, they still had plenty of plastic parts and room for improvement. This upgraded 100% aluminum power steering pulley from Uro Parts is a cost effective way to bulletproof yet another fragile plastic component of your motor. Being plastic from factory, the power steering pulley opens the possibility of it cracking or breaking with age and mileage, after all those years of heat cycles. Direct fit and same