MPEM (multi-purpose electronic module
The part number for your MPEM is 278001201 which was superceeded from the original part number of 278001031.
I did a quick look for your MPEM and found the prices ranging from $560 upwards of $714.....but take those numbers and do a google search to see what you can come up with. Their are a lot of aftermarket distirbuters and a lot of OEM distributers, some of which is accessible through the links on our home page, that sell you MPEM.
I don't know if I'd trust e-bay for this part, only because as Karl has said "buyer beware". Most of these auctions selling the part use the disclaimer that they know nothing about it, that it came from a "used" working ski, but it is sold "as-is". Most will say, once it's sold, it's a done deal. So if it doesn't work, then you just blew money on junk. And worse is, you can't leave a bad reputation because they didn't lie. They stated, "as-is" .......
Good luck:cheers: