Walbro 450LPH Electric In-Tank Fuel Pumps F90000267

Walbro / TI Automotive High-Output In-Tank Fuel Pump (F90000267) — “Walbro 450”

When a 255LPH pump isn’t enough, the F90000267 is the next step up. This is a high-output, in-tank EFI pump (often called the Walbro 450) built for serious fuel demand—perfect for boosted, high-horsepower street builds and flex-fuel/E85 setups.

Highlights

• High flow: up to 450 LPH @ 40 PSI

• Flex-fuel safe: designed for FLEX / E85-compatible use

• High-pressure capable: max pressure ~87 PSI

• 39/50mm “universal” in-tank body fits many popular EFI modules with the right install parts

• Internal check valve for improved pressure retention

Specs 

• Part Number: F90000267

• Pump Type: Electric In-Tank

• Body Size: 39mm / 50mm

• Outlet: 10mm (3/8")

• Flow: 450 LPH @ 40 PSI

• Max Pressure: 87 PSI

• Fuel Type: FLEX (E85 safe)

• Estimated capability range: roughly 550–850 HP depending on fuel, voltage, base pressure, and duty cycle

Install Notes 

• This is a universal performance pump—many installs require the correct sock/strainer, wiring pigtail, hose, and clamps, and sometimes fuel module / line modifications depending on the vehicle.

• For best reliability, use proper filtration and verify voltage under load (pump performance drops fast with low voltage).