Crankshaft Timing Chain Sprocket (Revised) - BMW N20 | 11317603944

The GENUINE part, as sold new by the dealer.
This sprocket has been revised from the original factory sprocket which was found to possibly slip out of timing due to the smooth surface on one side. This revised Genuine Sprocket has be laser etched to provide a surface that will not slip out of timing.
Part # 11-31-7-603-944 / 11 31 7 603 944 / 11317603944
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