Clearing select inventory from my personal collection.

NOS GM / Delco EGR Valve

17066879 (box), 17064939 (valve stamp)  - same part

Fits:

1980-82 AMC Concord / Spirit 2.5, 4.2

1981-88 AMC Eagle 2.5, 4.2

1977-83 Buick (almost everything)

1980-84 Cadillac 4.1L

1978-83 Chevrolet (almost everything) 2.5, 3.2, 3.8

1981-88 Jeep 4.2, 5.9

1977-83 Oldsmobile

1985-86 Renault 1.4, 1.7

That's not a complete list, but you get the idea.  Shoot me a note for 

  specific fitments.

Thanks for looking!