GSL392 Inline Fuel Pump

The Walbro GSL392 is a highly popular, universal inline fuel pump engineered for performance and racing applications where higher fuel pressure is essential. It supports up to 670 horsepower in naturally aspirated (NA) applications and is compatible with most EFI systems, including those that are turbocharged or supercharged. Constructed with an all-metal shell for durability, the GSL392 features 10mm x 1mm threaded inlet and outlet ports, allowing for a wide range of fitting connections. Its lightweight and compact design makes installation straightforward. The pump is QS9000 certified and made in the USA. Important considerations for installation include the mandatory use of a fuel filter between the tank and the pump, with a recommended micron rating of 20- to 40-microns. Additionally, a 10-micron post-filter is typically required between the fuel pump and the fuel rail. Operating the pump without these filters is not recommended.