Pat, are you sure the stock pump is not working or has it been sitting for a long time? Most times if you take the T line that runs off of the tank and goes to the "T" that is against the interior roll cage behind the passenger seat. Take that line off of the upper T and pressurize it. That means blow your hot air into it(I will leave how you do this up to you) and have someone crank over the Rhino until it starts. You will feel the sytem pressurize as it gets harder to get air into the system. Usually happens after a stock rhino "sits" may not be the fuel pump at all. Otherwise I have heard pro and con about the electric but you would never have to do the pressurization deal again with one.