Genuine Spark Plug (8819294), which will fit:
Saab 900 Classic - 1986 - 1993 - All 16v Injection models
Saab NG900 - 1994 - 1998 - All 4 cyl 16v Injection models
Saab 9000 - 1985 - 1998 - All 4 cyl 16v Injection models
Saab 9-3 - 1998 - 2000 - All 16v Injection models

Not suitable for 8v, V6 or Turbo models.
 
Please note the photo is a library image.