-20%

AEM High Capacity Universal Black Adjustable Fuel Pressure Regulator - 25-305BK

Click to zoom in

Load image into Gallery viewer, AEM High Capacity Universal Black Adjustable Fuel Pressure Regulator - 25-305BK

Competitive Pricing

We will beat most prices!
Questions?

Contact us at sales@allianceracing.com
Free Shipping

Free shipping on orders over $300!

AEM High Capacity Universal Black Adjustable Fuel Pressure Regulator - 25-305BK

Brand: AEM

SKU: aem25-305BK

availability: In stock

$193.95 $154.75

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. Features & Benefits 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...

Quantity

Quantity must be 1 or more

Product Info

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.

Features & Benefits

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

Downloads & Resources

Shipping on new purchases

In Stock Items:
In stock items typically ship within 1-3 business days. Most items arrive within 2 business days, but there are situations where it may take up to 5 business days.

Special Order Items:
Special order and out of stock items are product-specific and lead times can vary. Please e-mail us if you are looking for an ETA / Lead Time on a specific product. Special order orders are subject to cancellation if the vendor cannot provide any ETA.

Returns Policy

To start the return process, please e-mail sales@allianceracing.com

Include the following:
Subject "Return for Order#"
Order Number
Part Number
Reason

Returns are eligible for up to 14 days from delivery of items. Accepted refunds can take up to 7-10 business days to process. All refunds are subject to a 25% restocking fee, if opened. Customer may be responsible for return shipping. If 14 days have gone by since your item was delivered, unfortunately we can’t guarantee you a refund or exchange. We reserve the right to deny any return request, based on provided information.

Alliance Racing is not responsible for ensuring part fitment. It is the responsibility of the purchaser to ensure the parts being ordered are the correct fitment for the vehicle intended. Alliance Racing will not accept any returns for incorrect fitment after product is opened.

To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.

Shipping

To return your product, mail your product to:
Alliance Racing LLC
8810 Twin Lakes Blvd
Tampa, FL 33614

In many cases, you will be responsible for shipping costs to return your item. Shipping costs are non-refundable. If you receive a refund, the cost of shipping will be deducted from your refund.

Depending on your location, the time it may take for your exchanged product to reach you may vary.

If you are shipping an item over $100, you should consider using a trackable shipping service and/or purchasing Shipping Insurance.

Price Matching

To initiate a price match, please e-mail sales@allianceracing.com with the product information (SKU, URL, & Part Name) and a link to the competitors product page for us to validate the price match eligibility.

Please note that there are cases when we cannot offer a price match, but we will do everything in our power to try to match it. Some manufacturers have Pricing Policies that we have to adhere to.

Featured Blogs

Nissan 350Z Gauge Pods: The Best Interior Upgrade for Performance Driving Z33

by Duncan Conner on February 9, 2026

If you own a Nissan 350Z, chances are you’ve already discovered the car’s true personality: it’s a perfect blend of raw performance, driver feel, a... Read more

Porsche’s New Apex Predator: The new 911 Turbo S

by Alex Santamaria on September 7, 2025

Porsche’s latest 911 Turbo S packs 711 hp and a cutting-edge T-Hybrid system, making it the most powerful production 911 to date. But as electric turbos enter the scene, the future of tuning grows more complex. We break down the tech, the track numbers, and what it means for the aftermarket world.

Read the full post to see why this isn’t just evolution—it’s a warning shot for tuners everywhere.

Academy Sim Racing: Bringing Adrenaline-Pumping Action to Your Corporation

by Duncan Conner on May 9, 2024

In the fast-paced world of corporate culture, finding ways to boost morale, foster teamwork, and promote employee well-being is crucia... Read more

Competitive Pricing

Questions?

Free Shipping