Sorry, the part number is not listed on the receipt. It was a used one so that's probably why he did not list it. He just listed it as "replaced seat relay w/used one".
If you look under the seat, you can see it. It's kind of big...rough estimate 6"X8". It looks like a flat rectangular black plastic box. According the the mechanic, a new one is apporx $600. He sold me a used one for $100. I should have asked him for the old part, but I have no use for it, so I never bothered.
Everyone, please check your switch first because 90% of the time this is the culprit (2 min DIY job). For the remaining 10%....good luck....hopefully it's something as simple as mine --- the relay.
jrmd01@yahoo.com