Need a new EGR valve for 1990 Buick LeSabre.
How do I know what valve to get? We pulled the old one off, looked at the numbers, but can't seem to compare then to anything else out there.

In the center it says 9171 underneath a logo.

On one of the 3 pillar things, it the numbers are:
90077BN
19992 DJA

Any suggestions where to order from?
Thanks

bump?