Ordered parts for weed eater using MDL# (model number, right? WRONG) Received wrong part-didn't even look like the picture on the website. Called CS, was told MDL# is not model#-item# is model#. She helped me order the right part but I was charged shipping again. The website says "If you purchase the wrong part from Troy-Bilt, we will work with you to identify the correct part for your equipment and initiate a free exchange." NO they don't. Had to pay shipping on original item, shipping on replacement item, and return shipping. Could almost have bought a new weed eater for all that "free exchange". And I had to do all the legwork AND hold on a call to get help for about 35 minutes. Do yourself a favor and try ANYTHING else (Amazon, aftermarket, local lawn mower shop, etc.)