AEM High Capacity Universal Black Adjustable Fuel Pressure Regulator - 25-305BK
AEM25-305BK
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Overview
AEM's Universal Adjustable Fuel Pressure Regulator (AEM 25 302BK) is capable of supporting enough fuel flow for engines up to 1000 horsepower. Our universal AEM FPR is tapped to accept a -6 AN, or 9/16"x18 fittings and includes a 1/8 NPT port for a fuel pressure gauge or pressure sensor pick up.
AEM's High Cap Universal Adjustable Fuel Pressure Regulator (PN 25-305BK) is the perfect solution for racers who need reliable fuel pressure in high-boost vehicles and racecars that require a large volume of fuel delivery. A longer spring provides for a wider range of adjustment (from 40 to 130 PSI). An easy-to-adjust set screw stands up to repeated adjustments.
A single large return orifice is designed to handle high rate flow pumps. The regulator has a 1:1 rising pressure rate for boosted applications, and it is alcohol fuel and race fuel compatible. The High Cap Universal FPR is tapped to accept a 9/16"-18 O-Ring sealed fittings for inlet and return, and includes a 1/8 NPT port for a fuel pressure gauge or pressure sensor pick up.
Features:
- Universal fuel pressure regulator adapts to virtually any vehicle
- Longer spring for wider range of adjustment (40 - 130 PSI)
- Three -6AN (9/16"-18) ORB O-ring style inlet ports (2 inlet, 1 return)
- Boost dependent rising fuel pressure rate (1:1)
- CNC-machined from 6061-T6 billet aluminum
- Alcohol fuel and race gas compatible
- Integrated 1/8" NPT gauge port
- Patent # 6,298,828
Installation Instructions
Installation Instructions
Fitment
Fitment

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$154.75
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