Genuine GM Delphi 4 Pin Fuse Box Relay # 15328866 / 8866 - Set of 4 This listing is for four (4) OEM GM relays, part number 15328866 / 8866 You will receive the item as shown in the pictures. Please verify with the catalog number and with the pictures on the ad that this is the item you need before purchasing This relay is for thousands of GM models