Air and Fuel› Fuel Pumps, Regulators and Components

Fuelab

Fuelab 515 Carb Adjustable FPR 4-12 PSI (2) -10AN In (1) -6AN Return - Black

$227.00

SKU: F00B 51503-1

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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Fuelab 51503-1 is a universal CARB adjustable fuel pressure regulator designed for carbureted applications. It features a pressure range of 4-12 psi, with two -10AN inlet ports and one -6AN return port. This regulator is compatible with gasoline, diesel, methanol, and ethanol fuels.

Constructed from Billet Aluminum with a military-grade Type II anodize finish, it offers precise pressure adjustment via a fine thread pitch. The package includes a versatile mounting bracket and stainless steel hardware. It also features 1/8 inch NPT ports for an external pressure gauge and a pressure reference, and is backed by a limited lifetime warranty.

Fitment

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Specifications

BrandFuelab
Part NumberF00B 51503-1

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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