Walbro 400-977 Fuel Pump Installation Kit

Vehicle Fitment

• Commonly used with Walbro in-tank high-pressure GSS pumps (e.g. GSS341)
• Fitment examples: 1991-2000 Acura NSX when used with GSS341 high-output pump

Features

• Comprehensive hardware kit for installing Walbro in-tank fuel pumps
• Includes wiring components for performance setups
• Grommets and seal components optimized for high-pressure applications
• Designed for race-proven reliability in performance builds
• Includes pre-filter / sock for in-tank applications
• Works with TI Automotive high-performance modules
• Direct-fit design - no major tank modification required when used correctly
• High-quality components minimize leaks and ensure robust installation

Specifications

• Part Number: **400-977**
• Type: Fuel pump installation / fitment kit
• Compatibility: In-tank GSS series pumps (e.g., GSS341) per TI Automotive catalog :contentReference[oaicite:0]{index=0}
• Includes wiring, grommets, in-tank filter sock, hardware

Included Components

• Wiring harness / connector pieces
• Grommets for in-tank sealing
• Fuel sock / pre-filter
• Mounting hardware (clips, screws etc.)

Product Description

The **Walbro 400-977** is a dedicated installation kit designed for performance-oriented, in-tank fuel pump upgrades. This kit provides everything you need to reliably install Walbro high-pressure pumps in fuel tanks - from grommets and filter socks to durable wiring components.

Particularly suited for high-flow setups, the 400-977 is race-proven and optimized for use with Walbro's GSS series pumps. Whether you're building a high-horsepower street car or a track monster, this kit ensures a secure, leak-free installation and supports consistent fuel delivery under demanding conditions.