Fuel Pump - 400lph - Gas In-Tank

Technical Specifications:

• Brand: Walbro / TI Automotive

• Part Number (MPN): F90000262 

• Product Type: 400 LPH High Pressure In-Tank Fuel Pump

• Flow Rate: 400 LPH @ 40 PSI (13.5 Volts)

• Dimensions: 39mm Upper Body / 50mm Lower Body

• Outlet Diameter: 10mm (3/8") Hose Barb

• Operating Pressure: Supports systems operating up to 87 PSI max.

Performance & Fitment Features:

• Twin Turbine Technology: The DCSS 39/50 design utilizes a single impeller with two parallel rows of turbine blades, improving hot fuel flow and delivering 20% higher efficiency than conventional pumps. Capable of supporting up to 650+ HP on pump gas.

• CRITICAL FUEL WARNING: STRICTLY GASOLINE ONLY. This specific pump (F90000262) is designed exclusively for standard unleaded and race gasoline. It is NOT compatible with E85, Methanol, or Ethanol blends. Running alcohol-based fuels will immediately destroy the internal components and void the manufacturer's warranty. (For the E85 version, you must purchase PN: F90000267).

• Advanced Modification Required (Fitment): This is NOT a direct drop-in replacement. The 50mm oversized base requires physical modification to your factory fuel bucket/hanger.

• Mandatory Supporting Upgrades: 1. Electrical: This pump draws significant amperage. You MUST install a heavy-duty, 25-Amp fused hardwire relay kit. Factory wiring will melt or cause massive voltage drops. 2. Regulation: Flowing 400 LPH will overrun most factory Fuel Pressure Regulators, causing severe rich idle conditions. An adjustable aftermarket return-style FPR is mandatory.

Federal Emissions Compliance:

• Emissions Code: 5 (Replacement Part)

• Status: This is an internal fuel delivery component that does not alter factory emissions control equipment. It is strictly legal for sale, installation, and street use in all 50 US states, including California. No CARB Executive Order (EO) is required.

Disclaimer & Warranty Information: Onyx Customs FL acts exclusively as an authorized retailer of high-performance automotive components. We do not manufacture this product. Modifying pressurized in-tank fuel systems and high-amperage electrical circuits carries extreme risk. Improper installation, failing to upgrade the factory wiring harness, or running incompatible fuels (E85) will result in severe electrical fires, engine detonation, or total vehicle loss. Onyx Customs FL assumes no liability for direct or indirect damages, engine rebuilds, or diagnostics costs resulting from the incorrect installation or misuse of this component. All manufacturing defects and warranty claims are strictly the responsibility of, and must be directed to, TI Automotive. We strictly mandate that all fuel system components be installed and calibrated by a certified professional race mechanic.