Does A 12 Valve Cummins Have A Lift Pump?
Does A 12 Valve Cummins Have A Lift Pump? The 12 valve Cummins features a cam lobe which activates the plunger on the lift pump (see photo). Does a 5.9 Cummins have a lift pump? In order to have a reliable fuel injection system, the Cummins 5.9 comes from the factory with an OEM lift