Fits engine types: Carrera 996 M96 engines, Boxster 986 M96 Engines, Boxster 987 M96 Engines, Carrera 997 M96 & M97.01 Engine (3.8) number up to M97/01 68509790 has the older IMS bearing (this product fits) and Engine number from M97/01 68509791 has the larger revised IMS.
