Air and Fuel› Fuel Pumps, Regulators and Components

Holley

In-Tank Retrofit Fuel Pump Module 255LHP

$634.39

SKU: H00E 12-129

In Stock
In Stock
Ships by Jun 9
Free Shipping
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Holley 12-129 is a universal in-tank carbureted retrofit fuel pump module designed for returnless fuel systems. It features a 255 LPH pump with a built-in regulator for carbureted applications, allowing easy conversion of factory tanks or fuel cells to an in-tank fuel system without welding. Made from die-cast aluminum, it offers corrosion resistance and includes a pump hanger bracket to minimize vibration. Its low-profile design and 360-degree rotating clamping system ensure broad compatibility.

Fitment

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandHolley
Part NumberH00E 12-129
Weight2.9 lb

Videos

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Holley In-tank Retrofit Fuel Modules
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Holley In Tank Retrofit Fuel Pump Install!
Holley Retrofit In-Tank Fuel Pump Module Install

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Holley 12-129 Fuel Module Overview

Holley 12-129 Fuel Module Overview

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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