Apeixoto Fuel Pump Assembly — Fits 2002-2004 Chevy Trailblazer 4.2L & 2003-2004 GMC Envoy XL 5.3L, Complete Module

Apeixoto fuel pump replacement with sending unit E3549M designed to restore reliable fuel delivery for 2002–2004 Chevy Trailblazer 4.2L and 2003–2004 GMC Envoy XL 5.3L V8.

This drop-in fuel pump assembly is built as a direct-fit aftermarket replacement to bring back proper fuel pressure, filtration and level sensing to compatible GM SUVs. It includes the pump motor, sending unit with float, reservoir, O-ring seal and fuel strainer so you get the full sub-assembly needed for one-to-one swap with the original unit. Before ordering, double-check your vehicle year, make, model and engine to confirm compatibility.

Which vehicles and engines does this pump fit?

The Apeixoto E3549M assembly covers specific Trailblazer and Envoy XL years and engine types. It’s intended for owners of those exact model/engine combinations looking for a straightforward replacement.

• Chevrolet Trailblazer: 2002, 2003, 2004 with L6 4.2L engine
• GMC Envoy XL: 2003, 2004 with V8 5.3L engine
• Confirm VIN or current part number to ensure correct fit

What parts are included and what are the listed replacement numbers?

The kit arrives as a complete fuel pump module so you won’t need to source additional components. It matches common aftermarket and OEM reference numbers for easy cross-checking.

• Complete pump assembly with sending unit and float sensor
• Fuel reservoir (saddle), O-ring seal and inlet fuel strainer included
• Cross-reference numbers: E3549M, 323-01416, 263-353, 15077623, 15050444, 8150504440

How difficult is installation and what tools or steps are required?

This unit is designed as a direct-replacement aftermarket part that matches the original pump’s form and connector layout, so installation is straightforward for a DIY’er with basic automotive tools. If you’re not comfortable with fuel-system work, consider a professional install.

• Typical steps: relieve fuel pressure, disconnect battery, access fuel tank, remove old module, swap in new module and reassemble
• Basic tools: socket set, screwdrivers, fuel-line disconnect tool (if applicable), torque wrench for retaining ring
• Inspect seals and electrical connectors; replace O-ring included in the kit

What warranty and return options come with the pump?

Apeixoto provides limited-term protection to give buyers confidence after purchase. Review the seller’s policy for full details, especially before installation.

• 60-day return window for free returns
• 1-year replacement warranty covering defects as described by the seller
• Keep purchase records and photos for warranty claims

Who this is for: This Apeixoto E3549M fuel pump assembly is aimed at owners and independent mechanics working on 2002–2004 Chevrolet Trailblazer 4.2L inline-6 or 2003–2004 GMC Envoy XL 5.3L V8 models who need a complete, drop-in fuel module. It’s suitable for those who want a cost-effective aftermarket replacement with included filtration and level-sending components, and prefer to replace the whole sub-assembly rather than individual parts. If your vehicle matches the listed fitments and you or your technician are comfortable working with fuel systems, this kit provides the necessary parts to restore fuel delivery and level sensing quickly and cleanly.