Walbro GSL392 Fuel Pump


GSL392 Walbro Inline Fuel Pump

Walbro Universal Inline GSL392 Fuel Pump

Walbro universal fuel pump GSL392 is one of the most popular fuel pumps made by Walbro. is an ideal upgrades for:

GSL392 fuel pump is used in vehicles for racing or performance purposes where higher pressure fuel is necessary. Turbocharged, Supercharged.- with faulty inline fuel pumps, expensive or hard to replace in-tank fuel pumps.

For example, at 80 PSI the standard 255 lph pump will flow around 132 liters (35 gallons) per hour. At that same 80 PSI the equivalent HP (high pressure) fuel pump will flow over 210 liters (50 gallons) per hour.

Walbro GSL392 255LPH High Pressure Inline Fuel Pump are extremely popular upgrades to vehicles with engine and performance modifications, supporting up to 650 horse power. 

GSL392 Flow Chart

Walbro GSL392 Fuel Pump Flow Chart

GSL392 Fuel Pump Specs:


- Pressure: 255 (LPH) Liters Per Hour- AMP: 20
- OE-proven second generation.
- Fits most EFI applications including turbo and supercharged.
- Variety of pressures and flows available, including high pressure performance.- All metal shell including inlet and outlet.
- 10mm x 1mm threaded inlet and outlet accept a variety of fittings. 
- The 400-939 kit include two standard universal fittings which can connect to any 5/16 inch hose.- Lightweight, compact design.
- QS9000 certified.
- Made in USA

GSL392 Specs Walbro Fuel Pump


GSL392 Install Kit 400-939 


GSL392 Install Kit Walbro 400-939

2 x Walbro 3/8 hose barb fuel fitting
2 x crush washers
2 x electrical connections.
2 x starlock washers2 x nuts2 x mounting clamps1 x mounting cushion


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Walbro Engine Management or TI Automotive. Last updated 4/29/2013