All Balls Racing – Fuel Pumps & Modules - Polaris, including the 09-11 Hawkeye 2x4 vacuum operated pump, the 2015 Hawkeye 325 2x4 complete module and the 2017 FarmHand 450 2x4 pump kit. Polaris singles use two very different fuel delivery setups, and picking the wrong one wastes an afternoon. The vacuum operated pump runs off crankcase pulse on carbureted machines and fails by leaking through its diaphragm, which shows up as a bike that starves at high rpm or floods the crankcase with fuel. The complete in-tank module is an electric assembly with pump, strainer, regulator and sending unit already built onto the bracket, so you drop it in, reconnect and go rather than fighting individual pieces in a tank you cannot see into. Either way, a healthy fuel pump means steady pressure, hot restarts that do not need cranking, and no lean surge when you are working the machine on a hill or under a load in a field. These match original flow and pressure specs. Hawkeye and FarmHand models overlap and changed mid-year, so send us the year, model and drive and we will confirm the correct Polaris fuel pump before you order.