My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Fuelab 525011 EFI Adjustable Fuel Pressure Regulator -6AN Inline

Manufacturer

Fuelab

<h3>Fuelab: Pioneers of Digital Fuel Delivery</h3><p>Founded in 2005 and headquartered in Collinsville, Illinois, Fuelab has spent two decades reshaping what performance fuel delivery looks like. Where conventional fuel system design relied on fixed-speed motors and external controllers, Fuelab took a different approach — engineering fuel pumps around digital, brushless motor technology that puts precision and efficiency at the center of every build. The result is a catalog of fuel system components trusted by street enthusiasts, drag racers, off-road competitors, and diesel performance builders alike.</p><h3>The Prodigy Brushless Advantage</h3><p>At the heart of Fuelab's lineup is the celebrated Prodigy series — widely recognized as the automotive aftermarket's first speed-controllable DC brushless fuel pump platform. Unlike traditional brush-style motors that wear over time, the Prodigy's brushless design eliminates that failure point entirely, delivering improved durability and a dramatically lower current draw. An internal variable-speed controller means the pump responds in real time to changing fuel demand, whether at idle on a Sunday cruise or at wide-open throttle on the strip — all without expensive add-on voltage regulators.</p><p>The Prodigy pumps are built around a carbon 9-vane positive displacement design with a pressure-balanced rotor, and they feature powerful neodymium rare earth magnets for rapid response to shifts in speed and flow. Billet aluminum construction with an anodized finish keeps weight down while standing up to the harshest under-hood environments. Each pump is hand-built, tested, and certified at Fuelab's Collinsville facility before it ever ships.</p><p>Fuelab's <a href="/890-fuelab-electric-fuel-pump-6256">electric fuel pump</a> lineup spans an impressive range, supporting from street-friendly applications all the way to platforms rated at 2,500 horsepower. Compatibility extends across gasoline, diesel, E85, methanol, and ethanol — making Fuelab one of the few brands that can genuinely serve both daily drivers and dedicated race cars with a single product family.</p><h3>Carbureted &amp; High-Flow Applications</h3><p>Fuelab's engineering extends beyond EFI-focused builds. For carbureted and lower-pressure fuel systems, the brand offers externally mounted <a href="/890-fuelab-mechanical-fuel-pump-10431">mechanical fuel pump</a>-replacement options that bring brushless efficiency to traditionally mechanical setups. These inline electric pumps are purpose-built for carbureted applications, delivering high flow rates at low pressures — perfect for big-inch naturally aspirated engines or boosted carbureted combinations demanding consistent, cool fuel delivery without the heat soak and vapor lock risks common to fixed-speed pumps.</p><h3>A Complete Fuel System Brand</h3><p>Beyond pumps, Fuelab's catalog covers a comprehensive range of fuel system hardware. Billet aluminum fuel filters in multiple micron ratings, an extensive line of fuel pressure regulators — from compact EFI units to high-flow return-style designs — and a full suite of fittings and accessories round out what the brand offers. It is a focused, purpose-built product family designed so builders can spec an entire fuel system from a single manufacturer, with consistent quality and compatibility throughout.</p><p>Fuelab's commitment to innovation, in-house manufacturing, and rigorous quality control has made them a go-to name for anyone serious about fuel delivery — from a weekend autocrosser to a full-time race team chasing championships.</p>

Part Number

525011
07/20/2036 7:38 PM
Sale Price

$192.31

In Stock (7)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Fuelab 525011 is a high-performance adjustable fuel pressure regulator designed specifically for EFI (electronic fuel injection) applications. This inline regulator features a unique design with the return port positioned in-line with the inlet port rather than on the bottom, making it ideal for installations in tight engine compartments where space is limited.

Key Features:

  • Adjustable pressure range supporting fuel injected applications up to 125 PSID
  • -6AN inlet port and -6AN return port configured inline for compact installation
  • Precision fine thread pitch adjustment for accurate pressure tuning
  • Compatible with gasoline, diesel, methanol, and ethanol fuels
  • CNC-machined billet aluminum construction with Type II military-spec anodizing (MIL-A-8625)
  • 1/8 NPT gauge port with plug for external pressure gauge monitoring
  • 1/8 NPT pressure reference port with barbed fitting included
  • Accepts both port-style and non-port-style union fittings without interference
  • Includes versatile mounting bracket with stainless steel hardware
  • Backed by Fuelab's 2-year limited warranty

The 525 Series regulator delivers the precise fuel pressure control demanded by modern EFI systems while providing the flexibility and durability required for high-performance applications. Its compact inline design and premium construction make it an excellent choice for both street and race vehicles.

Products specifications

Range

25-90 psi

Size

(1) -6AN Inlet, (1) -6AN Return

Product arrived timely and in excellent condition.

Excellent selection of products. Very competitive pricing. Thank you!

Great product works fantastic w/super fast shipping and super great price!! Thanks!!!

Excellent

Ok

Product great, best price, delivered quickly, satisfied customer!

It was fast good product

quick and easy, no problems!

Quick online shopping.

Quick shipping on my order. Thanks

Great site and service! Looking forward to doing business again soon!

Great prices and item shipped quick!

I placed the order on Monday, and the package was delivered two days later, on Wednesday...and that was with FREE SHIPPING!!! It was also at the best price I could find. What more can you ask?

Competitive prices but wish there were vehicle application lists for parts.

This is the best price that I found on the AEM methanol injection kit! I and searched all over! Fast shipping and processing! I would buy from again!!

Lowest price of anyone, including shipping. Arrived quickly. What more can you ask for.

Good prices and quick shipping. Thanks!

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy