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Professional Products Fuel Pressure 5-Port Regulator (1) 3/8-NPT Return Port

Professional Products 10658


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Professional Products Fuel Pressure 5-Port Regulator (1) 3/8-NPT Return Port $130.99
Fuel Pressure 5-Port Regulator
  • (1) 3/8-NPT Return Port
  • (5) 3/8-NPT Inlet/Outlet Ports
  • Flows 150 gph 4.5 to 9 psi
  • .437 (7/16") Restriction
  • Blue Anodized

  • Professional Products 10658 Details

    Carburetor Regulators

    Same use as 4-port but also has a return line. For converting an EFI vehicle to a carburetor but using the EFI fuel pump and return line. Also, this type of regulator should be used in conjunction with any high-volume electric pump to avoid overworking the pump and heating up the fuel. At idle or low engine speeds, a high-volume pump is attempting to pump way more fuel than the engine can use. With a bypass regulator, all this excess fuel is returned to the tank. A 5-port bypass regulator would commonly be used where dual inlet dual four barrel carbs are used and the four carb inlets can be plumbed directly from the regulator.


    4.5-9 PSI

    Professional Products Powerflow Fuel Pressure Regulators are designed to help stabilize fuel pressure under the most demanding conditions. Available for a number of applications, these regulators allow multiple fuel pressure adjustments to increase volume for better overall vehicle performance.

    Some parts are not legal for use in California or other states with similar laws / regulations