Up for sale is a NEW OLD STOCK, Genuine GM High Amp Voltage Regulator. GM # 1116374 / Delco # D638 still in original package. Purchased from the inventory of a closed dealership. This is correct for the following automobiles:
1968-1970 Cadillac Calais, DeVille, Fleetwood, Commercial Chassis - when equipped with Delco # 1117137 130amp alternator