O-ring, air conditioning for Porsche 924 928 944 968 911 930 964 993 996 997 986 987

924 S 2.5L 1986-88
928 4.5L 1978-82
928 S 4.7L 1980-83
928 S2 4.7L 1984-86
928 S4 5.0L 1987-91
928 GT 5.0L 1989-91
928 GTS 5.4L 1992-95
968 3.0L 1992-95 
944 2.5L 1982-88
944 2.7L 1989
944 Turbo 2.5L 1986-91
944 S 2.5L 1987-88
944 S2 3.0L 1989-91
959 1987-88 
911 3.2L 1984-89 
911 (930) Turbo 3.3L 1984-89
964 1989-94
964 Turbo 3.3L 1991-92
964 Turbo 3.6L 1993-94
993 1994-98
993 Turbo 3.6L 1995-98 
996 Carrera 1998-05
996 Turbo 2001-05
996 GT3 1999-05 
997 Carrera 2005-12
986 Boxster 1997-04
987-1 Boxster 2005-08
987-1 Cayman 2006-08
987-2 Boxster 2009-12