Walbro F90000274 450 LPH High-Pressure In-Tank Fuel Pump Universal E85 Compatibl

Vehicle Fitment

• Universal fitment - designed for most in-tank EFI systems; confirm hanger size, wiring, fuel lines before install

Features

• High-flow 450 LPH (119 GPH) supports up to ~750 hp builds :contentReference[oaicite:1]{index=1}
• High-pressure bypass rated to ~112 psi (peak 135 psi) :contentReference[oaicite:2]{index=2}
• Dual-channel turbine design delivers smooth, quiet operation under load :contentReference[oaicite:3]{index=3}
• E85/flex-fuel compatible, safe to use up to E99 :contentReference[oaicite:4]{index=4}
• Comes with sealed Delphi electrical connector :contentReference[oaicite:5]{index=5}
• Made in USA by TI Automotive/Walbro :contentReference[oaicite:6]{index=6}
• Compact 39x50 mm body fits most OEM hangars :contentReference[oaicite:7]{index=7}
• Not recommended for methanol fuels; fuse at 25 A per pump :contentReference[oaicite:8]{index=8}

Specifications

• Flow Rate: 450 LPH (119 GPH @ 40 psi) :contentReference[oaicite:9]{index=9}
• Operating Pressure: ~35-87 psi; Max System Pressure: ~112 psi (peak 135 psi relief) :contentReference[oaicite:10]{index=10}
• Voltage Draw: ~14 A at 13.5 V :contentReference[oaicite:11]{index=11}
• Outlet: 10 mm (3/8") hose barb; Inlet requires inline prefilter (Walbro 125-190) :contentReference[oaicite:12]{index=12}
• Dimensions: upper Ø 39 mm, lower Ø 50 mm; Length: ~130.6 mm :contentReference[oaicite:13]{index=13}
• Relief Valve: 112 psi; higher variant suited to boost applications :contentReference[oaicite:14]{index=14}
• Fuel Compatibility: Gasoline & E85 (up to E99); Not suitable for methanol :contentReference[oaicite:15]{index=15}
• Connector: sealed Delphi; Fuse Rating: 25 A recommended :contentReference[oaicite:16]{index=16}

Included Components

• 1x Walbro F90000274 high-pressure in-tank pump
• 1x Sealed Delphi electrical connector

Product Description

The Walbro F90000274 is a high-performance, universal in-tank fuel pump engineered for builds requiring up to 450 LPH and supporting up to ~750 hp. Featuring a dual-channel turbine design and high-pressure bypass valve rated to 112 psi (peak 135 psi), this pump excels in boosted or high-compression applications where consistent high-pressure fuel delivery is critical.

Constructed by TI Automotive/Walbro in the USA, this unit includes a sealed Delphi connector and measures 39x50 mm - fitting most aftermarket hangars with an added prefilter. It operates quietly under load, draws ~14 A at nominal voltage, and is compatible with gasoline and ethanol blends up to E99. Ideal for EFI show cars, drag builds, rally, or high-performance street vehicles. Professional installation and supporting wiring/fuel system upgrades are strongly recommended.