GSL392 255 LPH Inline Fuel Pump

The Walbro GSL392 is a universal inline fuel pump, an ideal upgrade for vehicles requiring higher fuel pressure, such as those with turbo or supercharger modifications. It is a popular choice for performance builds and racing applications, particularly when replacing faulty inline pumps or upgrading from mechanical fuel pumps to EFI. This pump supports up to 670 horsepower in naturally aspirated setups and is known for its OE-proven second-generation design. Constructed with an all-metal shell, the GSL392 features 10mm x 1mm threaded inlet and outlet ports, allowing for versatile fitting options. It operates at a pressure of 255 LPH (liters per hour) and draws 20 amps. The pump's compact and lightweight design contributes to its durability. It is QS9000 certified and made in the USA. Proper installation of the Walbro GSL392 requires careful attention to filtration. It should never be operated without a fuel filter between the tank and the pump, with a pre-filter recommendation of 20 to 40 microns. Additionally, nearly all applications will need a 10-micron post-filter situated between the fuel pump and the fuel rail. Using only a 10-micron filter before the pump is not advised.