Fuel Pump Assy - 255lph Gas - Mustang 2001-04

The Walbro TU229HP-4 Fuel Pump Assembly—255 lph Gas for Ford Mustang 2001–04—is a high-capacity electric in-tank fuel pump designed to meet the increased fuel delivery demands of modified and performance-oriented engines. Built by Walbro/TI Automotive, a tier-one supplier to OEM manufacturers, this 255 liter-per-hour pump represents a substantial upgrade over factory specifications and serves drivers who require consistent fuel pressure across a wide range of engine load conditions.

The 255 lph flow rating directly translates to sustained fuel pressure delivery during high-RPM acceleration and sustained load—critical for turbocharged, supercharged, or naturally aspirated builds that demand more fuel volume than the factory 190 lph pump can sustain. Factory outlet and return ports remain compatible with OEM-style sumps, while the integrated sending unit maintains fuel level accuracy on the vehicle's gauge cluster. The assembly installs as a complete drop-in replacement, eliminating the need for sourcing individual components and ensuring electrical connector and mounting ring compatibility with 2001–2004 Mustang fuel tanks.

This fuel pump assembly is purpose-built for Mustang owners pursuing engine performance upgrades, forced induction installations, or fuel system modernization. The 255 lph specification bridges the gap between mild modifications and full competition builds, providing headroom for injection tuning without requiring external fuel system overhauls. Proper fuel pressure regulation and return-line management downstream remain essential to protect the injectors and fuel rails from overpressure.

OEM-equivalent construction and Walbro's decades of fuel delivery expertise ensure this pump meets the reliability and performance standards expected in modern performance automotive applications. Part number TU229HP-4 confirms correct fitment for the 2001–2004 Mustang platform.