Description
When running a FASS Titanium Series 125 gph lift pump in conjunction with a regulated return fuel system on your Powerstroke, some systems will require fuel pressure above the preset 55 psi. In those instances, FASS offers 75 psi fuel pump springs to ensure the regulated return system is running optimally. These replacement springs (PS-1018) are only to be used in conjunction with a regulated return fuel system and for those systems requiring 75 psi out of their FASS Titanium 125.
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