Xrt 1500 2004 quitting

[1001]

My xrt starts and everything but once i get driving no matter what speed i am going it will quit i think it is the vent tube in the fuel tank because i took it to the garage up the street and that's what they think it is. i called my local club car dealer and he was sopose to order this part for me but he bailed 2 times so i said hell with them and i am wanting to know the problem with the cart and where to get that vent piece i looked on the internet and it kinda looks like my piece but has extra back to it and i do not want to order a wrong part. thanks again. if you would like to see a picture of the part i need replaced pm me asking for it or post here