Walbro GSL inline electric fuel pump body for EFI installations
Walbro GSL inline fuel pump with 10 mm ports highlighted for EFI use
Walbro GSL inline electric fuel pump body for EFI installations
Walbro GSL inline fuel pump with 10 mm ports highlighted for EFI use

Walbro GSL Inline Fuel Pump 255 LPH, 10mm Inlet/Outlet (Gas)

The Walbro GSL inline electric fuel pump is a compact, gasoline-fueled solution designed for modern EFI systems....
Vendor: Walbro
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£124.49
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Walbro GSL inline electric fuel pump body for EFI installations

Walbro GSL Inline Fuel Pump 255 LPH, 10mm Inlet/Outlet (Gas)

£124.49
Walbro GSL inline electric fuel pump body for EFI installations
Walbro GSL inline fuel pump with 10 mm ports highlighted for EFI use

Walbro GSL Inline Fuel Pump 255 LPH, 10mm Inlet/Outlet (Gas)

£124.49
Description
Description
x

The Walbro GSL inline electric fuel pump is a compact, gasoline-fueled solution designed for modern EFI systems. Delivering up to 255 LPH, it aims to provide steady fuel flow under varying engine demands while remaining a space-conscious choice for underbody or frame-rail installations.

Key compatibility and build notes

  • 255 LPH / inline configuration for flexible placement
  • Fuel pump only, intended to integrate with your existing fuel setup
  • Historically associated with the Honda Prelude (1985–1987) and compatible with many EFI applications including turbo and supercharged builds
  • Manufactured by TI Automotive, owner of the Walbro brand; all newly made Walbro pumps carry the TI Automotive brand stamp
  • 10 mm x 1.00 female inlet and 10 mm x 1.00 female outlet for common high‑pressure lines

What this means in real-world use

In a performance EFI setup, the inline Walbro GSL can support a range of injectors and rail pressures, offering a dependable fuel delivery baseline. The 255 LPH rating serves as a useful reference for moderate upgrades; actual results depend on the full fuel system and engine tuning.

For turbocharged or naturally aspirated configurations, this pump provides a compatible flow path that can fit behind the scenes near the tank or along chassis rails, helping to manage heat exposure and efficiency when paired with proper filtration and wiring. The 10 mm ports help with install compatibility and minimize the need for custom adapters.

Installation considerations

  • This listing is for the pump only; you will need the remaining fittings, clamps, and hardware appropriate for your vehicle and fuel system
  • Confirm inlet/outlet sizes and ensure correct orientation to avoid flow restrictions
  • Provide clean electrical power and a suitable fuse or relay according to your vehicle’s electrical system

FAQ

Q: What is the Walbro GSL inline fuel pump compatible with?

A: Designed for gasoline EFI systems, including turbo and supercharged setups; verify inlet/outlet sizes for your install.

Q: Is this a complete kit or pump only?

A: This listing is for the pump only; you may need additional fittings and hardware for your build.

Shipping & Return
Shipping & Return
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You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

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