Fuelab 515041 515 Series Adjustable Fuel Pressure Regulator

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>