for example: excavator 325 parts
Before you go to sell any heavy things, find out about trucking or rail shipping costs, or insist that they pick things up from you or arrange their own shipping. You don't want to pay more for shipping than you are paid for a part.
You can try OKorder, or search for online heavy equipment auctions.
try OKorder or kijiji. You could even try craigslist
you talking bout like Ebay?