Q40 MotorsportsEnter Garage
Log inMEMBER PRICING

Find parts for your vehicle

Start with what you know.All parts
Saved vehicles
Vehicle details

No additional reviewed details

Ready to see available parts

No additional reviewed details are available for this selection. Add make, model or year to refine the results. Check each product’s application before ordering.

Choose make

Choices use the other selected filters. You can also enter a value directly.

Home / Engine / Fuel Pressure Regulators / AEM High Capacity Universal Black Adjustable Fuel Pressure Regulator
AEM High Capacity Universal Black Adjustable Fuel Pressure Regulator
Image availability does not confirm fitment or availability.
AEM

AEM High Capacity Universal Black Adjustable Fuel Pressure Regulator

PART 25-305BKCATEGORY Fuel Pressure Regulators
$160.16
MSRP $200.95You save $40.79
$160.16
1

Product information

Manufacturer information. Check the part number and installation requirements for your vehicle.

Supplier details checked 2026-09-23 · Test catalog

Some supplier details are unavailable for this product.

Product description

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

Features

Three -6AN (9/16"-18) ORB O-ring style inlet ports (2 inlet, 1 return)

Universal fuel pressure regulator adapts to virtually any vehicle

Longer spring for wider range of adjustment (40 - 130 PSI)

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

Supplier category
Fuel Delivery
Supplier subcategory
Fuel Pressure Regulators
UPC / barcode
840879025953
Units per product
1
Supplier Proposition 65 status
Y
Supplier EPA status
N/A
Air freight prohibited
No
Not CARB approved
Yes
CARB acknowledgement required
Yes
Freight delivery required
No
Powersports product
No

Manuals and documents

More manufacturer information

Other product descriptions

AEM High Capacity Universal Black Adjustable Fuel Pressure Regulator

FPR UNIVERSAL BLK TALL CAP

Adj Fuel Press Reg

Hi-Cap Universal

About the manufacturer

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.

Additional manufacturer information

Fuel Pressure Regulator

AEMEFUELPRES

Explore the 3D garage

Chevrolet Corvette C8 · Subaru WRX VA · Mazda Miata NA · Ford Mustang S197 · BMW 3 Series E46 · Honda S2000 AP1 · BMW M3 E30 · Honda Civic 11th generation · Audi S4 B5 · Ford Mustang S550 · BMW M3 E46 · Chevrolet Corvette C6 · Chevrolet Camaro 5th generation · BMW M3 E36 · Chevrolet Corvette C7 · Integra 3rd gen · Integra 2nd gen · Illustrative previews

Enter Garage