Turbo Wastegate Diaphragm Membrane - WhiteWhen Servicing Your Wastegate Or Upgrading Your Boost Spring, It Is A Best Practice To Replace The Wastegate Diaphragm. This Part's Malfunction / Failure Can Lead To Dangerous Over Boost Conditions. Our Service Department Has Found Many Aged / Worn Units That Warrant Replacement.1975-1994 Porsche 911 Turbo / 930 / 964 Turbo (965) / 934 / 935 / 962 / 956 / 924 Turbo / 924 GTsPorsche Genuine - Sold Each - 1 Per CarCompatible With Part Numbers: 930 123 060 12 - Wastegate 930 123 060 13 - Wastegate 930 123 060 20 - Wastegate 931 123 066 06 - Wastegate Also Available In Our Turbo Wastegate Service Kit Part Numbers: TUR 930 123 210 00 WGS PMS Also Consider Replacing Turbo Boost Pressure Switch Part Numbers: TUR 930 606 101 00 Note: Will Fit The Porsche 959 Wastegate With Slight ModsDimensions: Top 80mm - Bottom 93.5mm - Height 61.77mmAlternate Part Numbers:TUR 930 123 210 00 PMS / TUR-930-123-210-00-PMS / TUR.930.123.210.00.PMS / TUR93012321000PMS / 930 123 210 00 / 930-123-210-00 / 930.123.210.00 / 93012321000