This website seller says it is the same for 1993 to 1996. That excludes your 1992.
http://usautolighting.com/buick/1995/#Park%20Avenue
cost was 64 dollars each.
the different headlight will fit a 1991 - 1993
http://usautolighting.com/buick/1992/#Park%20Avenue
A quick phone call to a Buick dealer would tell you.
Sometimes they look alike from the front, but the dimensions behind might be different.
