This replacement fuel filler neck is just what you need to get your vehicle in good working order again!


  • Fuel Tank Filler Neck
  • Replaces dealer part numbers: 15131043, 88983256
  • Direct fit replacement
  • Built to strict quality control standards
  • Replaces any gas tank filler neck that is rusted, rotted, bent, or damaged from an accident

This fuel filler neck is a great replacement and has good cost savings over a gas tank filler neck from the dealer.

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

  1. step : Removing the Fuel Filler Neck (0:33)
    • Twist off the fuel filler cap
    • Pull off the fuel door insert
    • Remove the two 10mm nuts from the filler neck
    • Pry out the filler neck clip with a flat blade screwdriver
    • Loosen the fuel hose clamp with a flat blade screwdriver
    • Separate the hose from the filler neck with a flat blade screwdriver
    • Remove the 10mm nut and bolt from the filler neck wire
    • Maneuver the filler neck out through the fuel door
  2. step : Installing the New Filler Neck (2:49)
    • Remove the clip from the old filler neck bracket
    • Feed the new filler neck into place through the fuel door
    • Position the filler neck studs in the fuel door
    • Start the two 10mm nuts onto the filler neck
    • Push the clip into the filler neck bracket
    • Clean inside the fuel hose with penetrating oil
    • Slide the hose onto the filler neck
    • Put the filler neck wire into place
    • Fasten the 10mm nut onto the filler neck wire
    • Tighten the two 10mm nuts in the fuel door
    • Clean the fuel door insert
    • Push the fuel door insert into place
    • Twist on the filler cap

Tools needed for replacement:

    Materials, Fluids, and Supplies

  • Cloth Rags
  • Rust Penetrant

  • Ratchets & Related

  • Socket Extensions
  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 10mm Socket

  • Wrenches - Metric

  • 10mm Wrench

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Does this part fit on the 2003 Chevy trailblazer with 3rd row seating?
Michelle K on Jan 24, 2016
BEST ANSWER: Hello, Yes this will work on the Trailblazer EXT model.

Vehicle Fit

  • 2002-2004 Chevy Trailblazer Fuel Tank Filler Neck
  • 2002-2004 Chevy Trailblazer EXT Fuel Tank Filler Neck
  • 2002-2004 GMC Envoy Fuel Tank Filler Neck
  • 2002-2004 GMC Envoy XL Fuel Tank Filler Neck
  • 2003-2004 Isuzu Ascender Fuel Tank Filler Neck
  • 2002-2004 Olds Bravada Fuel Tank Filler Neck

This part replaces:

  • OE # 15131043
  • OE # 88983256
  • Spectra Premium Industries FN727
Part #: 1AFMX00215

How-to Video:

(06:53 min)