Enter Vehicle Year Make Model

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

Year
Make
Model
Options
Drivetrain

2003 GMC Sierra 2500 Engine & Engine Management

What year is your
Free Same Day Shipping

2003 GMC Sierra 2500 Engine & Engine Management

Filter Results
  • Notify When Available

    VIDEO

    Spark Plug Set

    Replaces 2003 GMC Sierra 2500 V8 6.0L 8 Piece Spark Plug Set TRQ SPA02136

    8 reviews
    Brand: TRQ - SPA02136

    • Spark Plug Type: Iridium
    • Quantity: 8 Piece
    • Kit Includes: (8) Spark Plugs
    $56.95
    Save 24%
    List $74.95 Save $18.00

    Guaranteed to Fit 2003 GMC Sierra 2500

    Guaranteed to Fit 2003 GMC Sierra 2500

  • Notify When Available

    VIDEO

    Starter

    Replaces 2003 GMC Sierra 2500 V8 6.0L Starter TRQ STA03072

    12 reviews
    Brand: TRQ - STA03072

    $109.95
    Save 12%
    List $124.95 Save $15.00

    Guaranteed to Fit 2003 GMC Sierra 2500

    Guaranteed to Fit 2003 GMC Sierra 2500

  • Notify When Available

    VIDEO

    Valve Cover Set

    Replaces 2003 GMC Sierra 2500 Left & Right Bank 2 Piece Valve Cover Set TRQ VCA90547

    3 reviews
    Brand: TRQ - VCA90547

    • Quantity: 2 Piece
    • Kit Includes: (2) Valve Covers
    $149.95
    Save 13%
    List $172.95 Save $23.00

    Guaranteed to Fit 2003 GMC Sierra 2500

    Guaranteed to Fit 2003 GMC Sierra 2500

  • Notify When Available

    VIDEO

    Drive Belt Component Kit

    Replaces 2003 GMC Sierra 2500 Air Conditioning 2 Piece Serpentine Drive Belt Component Kit TRQ BPA05089

    2 reviews
    Brand: TRQ - BPA05089

    • Quantity: 2 Piece
    • Kit Includes: (1) Serpentine Belt
    • Kit Includes: (1) Accessory Drive Belt Tensioner
    $50.95
    Save 26%
    List $68.95 Save $18.00

    Guaranteed to Fit 2003 GMC Sierra 2500

    Guaranteed to Fit 2003 GMC Sierra 2500

  • Notify When Available

    VIDEO

    Serpentine Belt

    Replaces 2003 GMC Sierra 2500 Serpentine Belt TRQ BPA03701

    2 reviews
    Brand: TRQ - BPA03701

    $34.95
    Save 15%
    List $40.95 Save $6.00

    Guaranteed to Fit 2003 GMC Sierra 2500

    Guaranteed to Fit 2003 GMC Sierra 2500

  • Notify When Available

    VIDEO

    Kit image

    Replaces 2003 GMC Sierra 2500 V8 6.0L with Square Style Coil 8 Piece Ignition Coil Set TRQ ICA61498

    43 reviews
    Brand: TRQ - ICA61498

    • Quantity: 8 Piece
    • Kit Includes: (8) Ignition Coils
    • Ignition Coil Type: Direct Replacement
    • Ignition Coil Color: Black
    $181.95
    Save 31%
    List $264.95 Save $83.00

    Guaranteed to Fit 2003 GMC Sierra 2500

    Guaranteed to Fit 2003 GMC Sierra 2500

  • Notify When Available

    VIDEO

    Performance Ignition Coil Set

    Replaces 2003 GMC Sierra 2500 V8 6.0L with Square Style Coil 8 Piece Performance Ignition Coil Set TRQ Performance ICA71261

    14 reviews
    Brand: TRQ Performance - ICA71261

    • Ignition Coil Style: Square Style
    • Quantity: 8 Piece
    • Ignition Coil Type: Performance
    • Ignition Coil Color: Red
    • Kit Includes: (8) Performance Ignition Coils
    $234.95
    Save 24%
    List $308.95 Save $74.00

    Guaranteed to Fit 2003 GMC Sierra 2500

    Guaranteed to Fit 2003 GMC Sierra 2500

  • Notify When Available

    VIDEO

    Ignition Kit

    Replaces 2003 GMC Sierra 2500 with 10.50 Inch Spark Plug Wires with Square Style Coil 17 Piece Ignition Kit TRQ Performance TKA06289

    1 reviews
    Brand: TRQ Performance - TKA06289

    • Kit Includes: (8) Spark Plugs
    • Quantity: 17 Piece
    • Spark Plug Type: Iridium
    • Kit Includes: (1) Ignition Coil Set
    • Kit Includes: (1) Performance Spark Plug Wire Set
    $236.95
    Save 33%
    List $352.95 Save $116.00

    Guaranteed to Fit 2003 GMC Sierra 2500

    Guaranteed to Fit 2003 GMC Sierra 2500

  • Notify When Available

    VIDEO

    Oil Pressure Sender

    Replaces 2003 GMC Sierra 2500 V8 6.0L Oil Pressure Sender TRQ SWA41738

    27 reviews
    Brand: TRQ - SWA41738
    $44.95
    Save 15%
    List $52.95 Save $8.00

    Guaranteed to Fit 2003 GMC Sierra 2500

    Guaranteed to Fit 2003 GMC Sierra 2500

  • Notify When Available

    VIDEO

    Valve Cover Set

    Replaces 2003 GMC Sierra 2500 Driver & Passenger Side 2 Piece Valve Cover Set TRQ VCA88780

    2 reviews
    Brand: TRQ - VCA88780

    • Quantity: 2 Piece
    • Kit Includes: (1) Passenger Side Valve Cover
    • Kit Includes: (1) Driver Side Valve Cover
    $144.95
    Save 13%
    List $166.95 Save $22.00

    Guaranteed to Fit 2003 GMC Sierra 2500

    Guaranteed to Fit 2003 GMC Sierra 2500

1

...

1 2 3 4 5

...

15
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.