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AEM High Capacity Universal Black Adjustable Fuel Pressure Regulator

Name: AEM High Capacity Universal Black Adjustable Fuel Pressure Regulator
Brand: AEM
SKU: aem25-305BK
Price: 200.95 USD

MPN 25-305BK · Store SKU aem25-305BK

$200.95

IN STOCK17 ready to ship

Supplier stock checked 11/7/2026, 10:42:21 AM UTC. Adding a part does not reserve it.

30-day returns for unopened, unused new parts

Request a return within 30 calendar days after delivery. New parts must be unopened and unused.

Shipping & returns ↗This policy does not limit rights required by law.

Free standard shipping on eligible parts orders of $100 or more. Oversized and freight items excluded. Fitment, taxes, availability and final totals are confirmed before payment.

Product details

AEM High Capacity Universal Adjustable Fuel Pressure Regulator. Black Anodized. Inlet: 2 X -6 (9/16-18) Outlet: -6 (9/16"-18), Gauge Port: 1/8"NPT, Vacuum Hose: 5mm (3/16"), and Universal Mounting Bracket with Four (4) 10-32x1/2" Screws. Barb fitting for Outlet port sold separately PN 25-390.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. High Capacity Universal Adjustable Fuel Pressure Regulator. Black Anodized. Inlet: 2 X -6 (9/16-18) Outlet: -6 (9/16"-18), Gauge Port: 1/8"NPT, Vacuum Hose: 5mm (3/16"), and Universal Mounting Bracket with Four (4) 10-32x1/2" Screws. Barb fitting for Outlet port sold separately PN 25-390. Inlet: 2 x -6AN (9/16-18) Outlet: -6AN - Gauge Port: 1/8 in. NPT - Black AEM Hi-Cap Universal Adjustable Fuel Pressure Regulator High Cap Fuel Pressure Regulator

Manufacturer fitment & guides

Check 25-305BK against the manufacturer’s application information below.

Part-specific notes

Not CARB approved. Destination and intended-use restrictions must be checked before sale.
Emissions acknowledgement required before purchase.
California Proposition 65: Y

Manufacturer documents

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What is the return policy?

Request a return within 30 calendar days after delivery. New parts must be unopened and unused.

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This policy does not limit rights required by law.

AEM High Capacity Universal Black Adjustable Fuel Pressure Regulator

Product details

Manufacturer fitment & guides

Part-specific notes

Manufacturer documents

THE NEXT PART
OF YOUR BUILD.

Free shipping on $100+ orders.

Build with the right brands.

Find your next upgrade.

Make the whole setup work.

A few things to know.

Your build.

Delivery & checkout

Delivery address