Exterior Components› Body Panels and Components

Holley

BILLET FP REG, ADJ 4.5-9 PSI 3/8 NPT BY-

$151.15

SKU: H00E 12-841

In Stock
In Stock
Ships by Jul 30
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Holley 12-841 is a billet fuel pressure regulator designed for precise fuel pressure adjustments. It is constructed from 6061-T6 billet aluminum with a black anodized base and clear anodized top. This regulator features dual fuel inlets and a single outlet, with a 3/8" NPT return port. It is adjustable from 4.5 to 9 psi and includes a 1/8" NPT gauge port.

Fitment

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Specifications

BrandHolley
Part NumberH00E 12-841
Weight0.72 lb

Videos

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Adjusting Holley Fuel Pressure Regulator - model 12-803 - Blue Fuel Pump 110GPH
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Holley fuel pressure regulator not regulating- fixed!
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Holley Carburetor : Fuel Pressure 101
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How To Choose A Regulator for Carbureted Vehicles

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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