This ad is for a used smog pump assembly for a 1984 - 1989 Porsche 911. This smog pump may very well fit a 1977 - 1983 Porsche 911 with CIS but please do your homework to insure it is the correct part for your needs. The pump aside from being dirty from years of storage it is in very good condition and can be used as is. These pumps are no longer new and are available as rebuilt units only. The...