Walbro 450 LPH High Pressure F90000274 In-Tank Fuel Pump (Gas/E85)




The Walbro F90000274 450 LPH is compatible with both gasoline and E85 and for use with vehicles making up to 750 HP. Matching universal Walbro Install Kit (400-1168) and STM Fuel Pump Rewire Kit (FPRW) are available in the purchase menu for a complete installation! 

Testing with the Evo 7/8/9 delivered enough fuel to trap 140 MPH and make 600 WHP with E85. We also recommend the  STM Fuel Return Kit  to aid this set up.

Vehicle Fitment:
Universal Fitment
Requires modifications to wiring, fuel lines and fuel module.
Compatible with Evo/DSM/GTR/WRX/STi/3000GT and more!
Professional installation recommended.

Fuel Compatibility:
 E85 Safe!

Purchase Options:
• Fuel Pump Only (F90000274)
• Fuel Pump & Install Kit (F90000274 & 400-1168)
• Fuel Pump, Install Kit and Re-Wire Kit (F90000274 & 400-1168 & FPRW)

More Info:
Walbro / TI Automotive High Pressure F90000274 Fuel Pump
This innovative design features a single impeller with two parallel rows of turbine blades. Designed for high performance engines exceeding 500 HP and safe for E85 or Gasoline applications.

The blades feed two high-pressure pumping channels, as opposed to a conventional single-stage pump that uses an impeller with a single row of blades at its outer edge. This innovative design results in improved hot fuel flow, as well as minimal noise and current use, resulting in efficiency that's 20% higher than conventional pumps.

• For use up to 750 HP
• Award-winning OE technology
• High-pressure, high-flow performance
• Requires modifications to wiring, fuel lines and fuel module
• Professional installation recommended
• Outperforms all current market in-tank fuel pumps
• Uses Install Kit (400-1168)

• Fuel: FLEX
• Horsepower: 750
• Flow Rate (lph): 450
• Flow Rate (ghp): 119
• Pressure (psi): 50
• Pressure (kPa): 345
• Max System Pressure (psi): 112
• Max System Pressure (kPa): 772
• Filter Group: B
• Inlet Diameter: 14mm
• Inlet Configuration: 0 degree outlet fitting to inlet orientation

What's the difference between the F90000269 and F90000274?

Fuel Pump Relief valve
opens at:
Relief valve
fully open at:
F90000269 90 psi 105 psi
(High Pressure)
110 psi 135 psi

"For decades, Walbro automotive fuel pumps have been manufactured by TI Automotive. These same pumps are now branded with the TI Automotive name, carrying a legacy for more than 60 years of manufacturing the most popular drop-in fuel pumps, with the same performance, quality and reliability that you have come to know and expect."
© All content is property of STM Tuned Inc
We price match!
If you find it cheaper, just give us a call!
(585) 226-8226

© All content is property of STM Tuned Inc

We price match!
If you find it cheaper, just give us a call!
(585) 226-8226

Customer Reviews

Based on 3 reviews
Dusty Landrum (Vallejo, CA, US)
Works in 99 GSX with modification

Bought this for my 99 Eclipse GSX and worked, but requires heavy modification to the fuel hanger. I would recommend if you get this to buy the FullBlown double pump hanger and just use one pump, or modify the OEM hanger. Again, works but requires HEAVY modification to the OEM hanger.

Carlos Melendez (San Juan, PR)

Super easy to install on my evo great product I was back in the road in no time.

Awesome, Carlos! Enjoy : )

Drew Sims (Albuquerque, NM, US)


Thanks for the review, Drew!

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