? for Benzmac regarding ordered OVP

I had ordered a OVP relay for my 95 C220 from Phil at Fastlane. When I had first ordered the part it was from the PartsShop, But Phil recomended ordering from Fastlane because it was cheaper. I had ordered 000-540-67-45 as the replacement for 000-540-52-45. When I received the part it was the latter. Should I use this part or order another one from the PartsShop who has the listed replacement part. Phil has been out a couple of days so I haven't had a chance to speak with him. Thanks.