SEARCH BY VEHICLE:
Enter Vehicle Year Make Model

Specify your vehicle's year, make and model to guarantee fit.

Year
Make
Model
Options
Drivetrain

2003 GMC Sierra 3500 Fuel & Emissions

What year is your
Free Same Day Shipping

2003 GMC Sierra 3500 Fuel & Emissions

Filter Results
  • Notify When Available
    Fuel Transfer Unit - Sparta

    Replaces Fuel Transfer Unit Sparta PN3186

    Brand: Sparta
    - PN3186

    Out of Stock

    $ 125.95

    Guaranteed to Fit 2003 GMC Sierra 3500

    Guaranteed to Fit 2003 GMC Sierra 3500

    Replaces Fuel Transfer Unit Sparta PN3186

    Fuel Transfer Unit - Sparta
    Brand: Sparta - PN3186

    Out of Stock

    $ 125.95

    Guaranteed to Fit 2003 GMC Sierra 3500

    Guaranteed to Fit 2003 GMC Sierra 3500

  • Notify When Available

    VIDEO

    Fuel Pump Lock Ring - Delphi

    Replaces 2003 GMC Sierra 3500 Fuel Pump Lock Ring Delphi FA10026

    Brand: Delphi
    - FA10026

    Out of Stock

    $ 31.95

    Guaranteed to Fit 2003 GMC Sierra 3500

    Guaranteed to Fit 2003 GMC Sierra 3500

    Replaces 2003 GMC Sierra 3500 Fuel Pump Lock Ring Delphi FA10026

    VIDEO

    Fuel Pump Lock Ring - Delphi
    Brand: Delphi - FA10026

    Out of Stock

    $ 31.95

    Guaranteed to Fit 2003 GMC Sierra 3500

    Guaranteed to Fit 2003 GMC Sierra 3500

  • Notify When Available
    Fuel Transfer Unit - Delphi

    Replaces Fuel Transfer Unit Delphi FG0166

    Brand: Delphi
    - FG0166

    Out of Stock

    $ 322.95

    Guaranteed to Fit 2003 GMC Sierra 3500

    Guaranteed to Fit 2003 GMC Sierra 3500

    Replaces Fuel Transfer Unit Delphi FG0166

    Fuel Transfer Unit - Delphi
    Brand: Delphi - FG0166

    Out of Stock

    $ 322.95

    Guaranteed to Fit 2003 GMC Sierra 3500

    Guaranteed to Fit 2003 GMC Sierra 3500

  • Notify When Available
    Fuel Pump Module Assembly - Delphi

    Replaces Fuel Pump Module Assembly Delphi FG0246

    Brand: Delphi
    - FG0246

    Out of Stock

    $ 198.95

    Guaranteed to Fit 2003 GMC Sierra 3500

    Guaranteed to Fit 2003 GMC Sierra 3500

    Replaces Fuel Pump Module Assembly Delphi FG0246

    Fuel Pump Module Assembly - Delphi
    Brand: Delphi - FG0246

    Out of Stock

    $ 198.95

    Guaranteed to Fit 2003 GMC Sierra 3500

    Guaranteed to Fit 2003 GMC Sierra 3500

  • Notify When Available
    Fuel Pump Module Assembly - Delphi

    Replaces Fuel Pump Module Assembly Delphi FG0122

    Brand: Delphi
    - FG0122

    Out of Stock

    $ 223.95

    Guaranteed to Fit 2003 GMC Sierra 3500

    Guaranteed to Fit 2003 GMC Sierra 3500

    Replaces Fuel Pump Module Assembly Delphi FG0122

    Fuel Pump Module Assembly - Delphi
    Brand: Delphi - FG0122

    Out of Stock

    $ 223.95

    Guaranteed to Fit 2003 GMC Sierra 3500

    Guaranteed to Fit 2003 GMC Sierra 3500

1

...

3 4 5 6 7

...

7
Close



GMC is a registered trademark of General Motors Company. 1A Auto is not affiliated with or sponsored by GMC or General Motors Company. See all trademarks.
Same Day Shipping

Need your part faster? Choose expedited shipping at checkout.

Guaranteed To Fit

Highest quality, direct fit replacement auto parts enforced to the strictest product standards.

USA Customer Support

Exceeding customers' expectations, our team of passionate auto enthusiasts are here to help.

Instructional Video Library

Thousands of how-to auto repair videos to guide you step-by-step through your repair.

Go To Top
Specify your vehicle

Specify your vehicle's year, make and model to guarantee fit.

Year
Make
Model
Options
Drivetrain

If your vehicle isn't listed, close the window to return to search.