Air and Fuel› Fuel Pumps, Regulators and Components

Fuelab

Fuelab 515 EFI Adjustable FPR Large Seat 25-90 PSI (2) -6AN In (1) -6AN Return - Black

$227.00

SKU: F00B 51506-1-L-E

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INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

The Fuelab 51506-1-L-E is a universal EFI adjustable fuel pressure regulator designed for precision and versatility. It features a large seat and is adjustable from 25-90 psi, with two -6AN inlet ports and one -6AN return port. Constructed from Billet Aluminum with anodize per military MIL-A-8625, Type II, this regulator is compatible with gasoline, diesel, methanol, and ethanol fuels.

This regulator offers fine thread pitch for precise pressure adjustments and includes a versatile mounting bracket with stainless steel hardware. It also features 1/8” NPT gauge and pressure reference ports, with the latter including a barbed fitting. Fuelab backs this product with a Limited Lifetime Warranty.

Fitment

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Specifications

BrandFuelab
Part NumberF00B 51506-1-L-E

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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