F90000274 430 LPH E85 In-Tank Fuel Pump

The Walbro F90000274 is a high-performance, in-tank fuel pump engineered by TI Automotive, the parent company of Walbro. This authentic, genuine Walbro/TI Automotive pump is specifically designed for E85 or gasoline applications, making it suitable for a wide range of performance builds. Its unique DCSS 39/50 design utilizes a single impeller with dual turbine blade rows to feed two high-pressure pumping channels. With an advertised flow rate of 430 LPH at 40 PSI, and independently tested at 422 LPH at 43.5 PSI (3 BAR), this pump is capable of supporting high-performance engines, reportedly exceeding 750hp. The F90000274 is identified as a high-pressure version, with a relief valve that permits higher maximum fuel pressure than other models. Its physical dimensions are identical to the Walbro F90000267, with an upper body diameter of 39mm and a lower body diameter of 50mm, and a 10mm (3/8") outlet. It is important to note that the F90000274 pump is sold as the pump only and does NOT include an "install kit" such as a filter sock, wiring pigtail, hose, or clamps. However, it is compatible with the 14-0143 Fuel Pump Filter Sock. All pumping components have been validated to OEM specifications and are approved for use in E85/flex fuel applications.