I bought a couple-three of those off the display pegboard in the parts department of a now long closed small town Dodge dealer. 1991 maybe? I still have one in NOS condition. I knew DC was gone because it had changed over to MP. I think the paper packaging with the part number is still around somewhere. The ones I bought came in a bulk pack from which the dealer would sell singles. They were cheap, maybe $2-3 each.