Air and Fuel› Fuel Pumps, Regulators and Components

Walbro

GSS342G3 255 LPH In-Tank Electric Fuel Pump

$76.99

SKU: walGSS342G3 wal400-760

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Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Walbro GSS342G3 is an in-tank high-pressure electric fuel pump designed for gas-powered vehicles. It features a reliable gerotor design and is capable of supporting applications exceeding 500 horsepower with a flow rate of 255 liters per hour.
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The Walbro GSS342G3 is an in-tank high-pressure electric fuel pump engineered to provide a robust flow rate of 255 liters per hour, designed to support engines producing over 500 horsepower. This high-pressure variant maintains significantly higher flow at elevated pressures compared to standard-pressure alternatives, with a straight-through inlet/outlet configuration that fits compact hanger assemblies without modification. Constructed with a proven gerotor internal design, this unit measures 39mm in diameter and 123.7mm in length. It is rated for a 20A fuse and features an 8mm outlet diameter. Because this is a high-output component, ensure your fuel system can handle the increased volume and pressure requirements. Installation requires standard in-tank fuel system procedures. Please note that Walbro fuel pumps are individually quality-assurance tested prior to shipping and do not carry a manufacturer's warranty. While this pump is a popular upgrade for a wide range of platforms—including 1990-2000 Acura Integra, 1992-2000 Honda Civic, 2002-2014 Subaru WRX, and various Toyota Supra Turbo models—it is a universal-fit component. Always verify your specific vehicle's hanger assembly requirements before purchase.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandWalbro
Part NumberwalGSS342G3 wal400-760
CategoryAir and Fuel
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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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