Walbro in-tank fuel modules are engineered as direct replacements for factory modules in GM trucks, offering a significant enhancement in fuel delivery, particularly for 5.0L OBDII engines. These modules are designed to match the flow of high-pressure 255 pumps, such as the GSS340 series, ensuring your engine receives the fuel it needs for optimal performance.
For GM trucks equipped with a 5.0L engine and OBDII system, specifically models from 1998 to 2000 stamped with GAV, GDJ, or GFK, the TU425HP fuel module is the recommended upgrade. This module is also compatible with a range of other GM truck models, including various 4.3L, 5.7L, and 7.4L engines with OBDII, as detailed in the compatibility chart below.
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