Walbro External Fuel Pumps
Click on the part number of the pump to view a graph of the flow and current-draw of each pump.
Click here for the dimensions of the inline pumps.
If a pump is not ordered with a specific installation kit, it will come with the 400-929 installation kit which consists of a couple wire terminals, nuts & washers, for the wiring, plus special brass washers for the fittings.
| Pump | Description | Price |
|---|---|---|
| GSL393 flow graph | Strong little EFI pump. OE pump for many Ford applications | $120 |
| GSL394 flow graph |
upgrade for GSL393 with amazing shut-off pressure of 130 psi | $130 |
| GSL391 flow graph |
similar to in-tank 190 ltr/hr pump | $130 |
| GSL392 flow graph |
similar to in-tank high-pressure 255 pump with even higher shut-off pressure |
$140 |
| GSL395 flow graph |
low pressure in-line pump | $125 |
Pump fittings
The Walbro external fuel pumps do not come with fittings. Each end of the pump has 10mm x 1.0 internal threads. If you don't already have fittings, or can't find them elsewhere, see if any of these will work.Click
| Fitting | Description | Price |
|---|---|---|
![]() 128-3012 |
Bundy Style |
Pump Accessories
Walbro makes additional items that may help with an external pump setup.Mounting Hardware
This little kit has a foam sleeve to isolate the pump noise and vibration. The kit also includes a couple clamps to secure the pump - $5.
In-Tank Pick-up Filter
If you mount one of these pumps inside a fuel tank and want to attach a pickup filter directly to the inlet, you will need one of these pickup filters. Walbro makes this filter to press directly onto the 128-3025 fitting - $7.
Fuel Pick-up
The fuel pickups now have their own page. Click here to check them out
Installation kits
Walbro makes kits of fittings and all other parts required for a simple replacement of original external fuel pumps.
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