I ordered a Carter fuel pump, M4845, from Rock Auto that was supposed to be for a V code 440 and the threaded output fitting to the vapor separator is so tiny that the factory hard line isn't even close to fitting. It has a 3/8 inlet nipple, but the outlet side is way small. A Carter M3672 fuel pump has the correct outlet thread, but the inlet is 5/16. What pump is everyone using that has the correct inlet and outlet, on their HP 440's?

Thanks!

carter 6903