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#18625305BK
AEM 25-305BK High Cap Fuel Pressure Regulator
$160.15
/each
In Stock
$177.95
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Product Summary
Universal Fit, 40-130 Fuel Pressure Rating (psi)
Rebates Available
See rebate detailsKey Specs
| MFG. Part # | 25-305BK |
| Brand | AEM Electronics |
| Regulator Style | Return |
| Material Type | Aluminum |
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Return PolicyAEM Electronics 25-305BK Details
AEM Electronics 25-305BK Details
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)
- Single large return orifice accommodates very high flow rate pumps
- Boost dependent rising fuel pressure rate (1:1)
- Three 9/16"-18 ORB O-ring style inlet ports (2 inlets, 1 return)
- Easy to use adjustment screw
- Integrated 1/8" NPT gauge port
- 5mm (3/16") vacuum hose
- Alcohol fuel and race gas compatible
- CNC-machined from 6061-T6 billet aluminum
- Patent # 6,298,828
Rebates
Holley October Promo 10% Off Select Parts Sale
Holley's October Promo 10% Off Select Parts Sale, running from September 28, 2026, through November 1, 2026. For a limited time, customers can save up to 10% off on select Holley parts, making it the perfect opportunity to upgrade your ride with premium Holley branded parts including Holley, Brawler, Quick Fuel, Leg Wheels, Rev Wheels, Rocket Racing, Flowtech, Edge, Racequip, Apr and Dinan. Purchases must be made between September 28, 2026, through November 1, 2026. This limited-time offer applies to qualifying Holley branded parts purchased during the promotional period. Following the promotion, these parts will revert back to standard pricing.
CARB Warning
For race/ off road use only
CARB Warning
For race/ off road use only
AEM Electronics 25-305BK Specifications
AEM Electronics 25-305BK Specifications
| KEY SPECS | |
|---|---|
| MFG. Part # | 25-305BK |
| Brand | AEM Electronics |
| Regulator Style | Return |
| Material Type | Aluminum |
| GENERAL | |
| Fuel Pressure Rating (psi) | 40-130 |
| Pressure Regulator Inlet Size | 9/16"-18 ORB O ring |
| Pressure Regulator Outlet Size | 9/16"-18 ORB O ring |
| Inlet Quantity | 1 |
| Outlet Quantity | 1 |
| Regulator Material | Aluminum |
| Boost/Vacuum Reference Port | Yes |
| Gauge Port | Yes |
| Rebuildable | No |
| Fittings Included | No |
| Regulator Finish | Black anodized |
| Sold in Quantity | Each |
| Boost/Vacuum Rise Ratio | 1:01 |
| Regulator Location | Inline |
| GTIN Code | 840879025953 |
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