BDFHYK Fuel Pump Module Assembly E3500M for Silverado & Sierra 1999-2004 w/ Sending Unit

BDFHYK Fuel Pump Module Assembly E3500M is a direct-fit electric fuel pump module with sending unit and pressure sensor designed to replace worn OEM units on 1999–2004 Chevrolet Silverado and GMC Sierra trucks.

This fuel pump module delivers a complete in-tank solution engineered to restore reliable fuel delivery and accurate tank-level reporting for V6 and V8 GM pickups. Built to match factory dimensions and connections, the assembly includes the pump, integrated sending unit and fuel pressure sensor so you can swap the entire module rather than chasing individual parts. The unit is manufactured from durable POM plastics and precision components to resist corrosion and keep contaminants out of your fuel system.

Will this pump fit my Silverado or Sierra and which engines are supported?

This module is designed for direct compatibility with late‑1990s to early‑2000s GM full‑size pickups. It fits Chevrolet Silverado and GMC Sierra models from 1999 to 2004 across common pickup trims and bed sizes.

• Compatible models: Silverado 1500, 1500 HD, 2500, 2500 HD, 3500 and matching Sierra trims
• Engine coverage: 4.3L, 4.8L, 5.3L, 6.0L, and 8.1L V6/V8 gasoline engines
• Check interchange numbers if unsure: E3500M and listed OE cross‑references

How does this assembly restore fuel system performance?

The module draws fuel from the tank, pressurizes it and sends it to the fuel rails while the integrated sensor and sending unit provide accurate pressure and level data to the vehicle. Replacing a failing module can eliminate hard starts, inconsistent pressure and false fuel gauge readings without extensive plumbing or in-line pumps.

• Replaces worn pump to restore steady fuel pressure for reliable starts
• Built-in filter screens out debris and moisture before fuel reaches the engine
• Integrated sending unit returns accurate fuel level signals to the dash gauge

What materials and quality features are included?

The assembly is constructed with POM plastic housings and precision internal parts chosen for corrosion resistance and dimensional stability in an in-tank environment. Components are selected to meet OE fit and function, reducing vibration and droop under load.

• High-quality POM plastic resists chemical attack and wear inside the tank
• Precision pump internals maintain consistent flow and pressure under varied conditions
• Pre-filter element blocks contaminants to extend pump life and protect injectors

What comes with the purchase and is there warranty coverage?

The product ships as a complete fuel pump module assembly including the sending unit and fuel pressure sensor so you can perform a single replacement. BDFHYK backs this assembly with a one-year unlimited-mileage warranty to cover manufacturing defects, though you should verify fitment and inspect the package on arrival.

• Complete in-tank module: pump, sending unit, pressure sensor included
• Replaces many OE and aftermarket part numbers for easier cross-reference
• One-year unlimited-mileage limited warranty from BDFHYK

Who is this for: This BDFHYK fuel pump module is intended for owners and technicians working on 1999–2004 Chevrolet Silverado and GMC Sierra trucks who need a full in-tank replacement to restore correct fuel pressure and tank-level readings. It's a practical choice for fleet maintenance shops, DIY mechanics replacing a failing pump or anyone troubleshooting fuel delivery issues where a direct-fit module and integrated sensor simplify the repair. Confirm vehicle year, model and engine displacement before ordering to ensure proper compatibility.