NOS GM Delco Engine Calibration Unit (PROM) which fits the following:
BUICK
- 1990 A-Body (Century) 2.5R with Automatic Transmission (MD9), Federal (NA5)
CHEVROLET
- 1990 A-Body (Lumina) 2.5R with Automatic Transmission (MD9), Federal (NA5)
OLDSMOBILE
- 1990 A-Body (Ciera) 2.5R with Automatic Transmission (MD9), Federal (NA5)
Box Part # 16143770
PROM ID = 3772ATCF