PFR57-530 fits vehicles with a single gearbox bushing (OEM part number 99637505505) in the end casing, including all 3.4 models, 3.6 & 3.8 Manual models except for Turbo GT2 & GT3 models.PFR57-531 fits 996 & 997 vehicles with the twin gearbox mounting bracket (OEM part number 99737503303)at the end of the gearbox, as fitted to all 3.6 & 3.8 Tiptronic models, Turbo models Manual & Tiptronic, GT2 & GT3.Fits OEM Part Numbers: 99637505505This part fits the following vehicles:Porsche 911 Anniversary Edition Coupe 3.6L H6 Chassis 996 (2004)Porsche 911 Carrera 4 Convertible 3.4L H6 Chassis 996 (1999-2001)Porsche 911 Carrera 4 Convertible 3.6L H6 Chassis 996 (2002-2004)Porsche 911 Carrera 4 Coupe 3.4L H6 Chassis 996 (1999-2001)Porsche 911 Carrera 4S Convertible 3.6L H6 Chassis 996 (2004-2005)Porsche 911 Carrera 4S Coupe 3.6L H6 Chassis 996 (2002-2005)Porsche 911 Carrera Convertible 3.4L H6 Chassis 996 (1999-2001)Porsche 911 Carrera Convertible 3.6L H6 Chassis 996 (2002-2005)Porsche 911 Carrera Coupe 3.4L H6 Chassis 996 (1999-2001)Porsche 911 Carrera Coupe 3.6L H6 Chassis 996 (2002-2005)

This part fits the following models:
Porsche
911
996 (1997-2005)