1999 Oldsmobile Alero Year Specific Sunroof Glass.  The sunroof is in good used condition. Measurements are  31  3/4" long and 21 1/4" wide. ***This sunroof came standard on Alero model year 1999 but please compare your measurements and compare to ours to ensure a perfect fit. Aftermarket sunroofs have become very popular over the last 10 years, if you have a sunroof switch that looks like any in our last picture, you have an aftermarket.  Be wary of sellers stating this sunroof will fit many different years, it will not, this sunroof was specific to the 1999 Alero, glass size is the same but the bolt patterns are different in the other year models.  This glass panel was removed from an 1999 Alero that had a blown engine so there is no unseen damage on this panel as is found with a majority of sunroof glass panels that are removed from wrecked vehicles. Often times on a wrecked vehicle, the metal trim around the glass, under the seal, will incur slight bends which will make the panel leak soon after. We have been dealing in sunroof glass panels for 20 years now and only sell the panels that come through our shop that are off of vehicles that have not been in major accidents. We also 100% inspect and clean the panels, especially the seals, in an effort to identify any  imperfections that may cause issues down the road. The glass panels are inspected after removal from the vehicle as the seals can be easily damaged during the removal process.  The sunroof comes read to bolt in. Please contact us with any questions that you may have.