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 Chevrolet Silverado 1500 Engine & Engine Management

What year is your
Free Same Day Shipping

2003 Chevrolet Silverado 1500 Engine & Engine Management

Filter Results
  • Notify When Available

    VIDEO

    04-15 Chevy, GMC Multifit 4.8L 5.3L 6.0L 6.2L Intake Manifold Gasket Set

    Replaces Intake Manifold Gasket Set TRQ SGA11383

    9 reviews
    Brand: TRQ
    - SGA11383

    $59.95
    Save 32%
    List $87.95 Save $28.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Replaces Intake Manifold Gasket Set TRQ SGA11383

    VIDEO

    04-15 Chevy, GMC Multifit 4.8L 5.3L 6.0L 6.2L Intake Manifold Gasket Set
    9 reviews
    Brand: TRQ - SGA11383
    $59.95
    Save 32%
    List $87.95 Save $28.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

  • Notify When Available

    VIDEO

    Performance Ignition Coil Set

    Replaces 8 Piece Ignition Coil Set TRQ Performance ICA71261

    15 reviews
    Brand: TRQ Performance
    - ICA71261

    • Ignition Coil Style: Square Style
    • Quantity: 8 Piece
    • Ignition Coil Color: Red
    • Kit Includes: (8) Performance Ignition Coils
    • Ignition Coil Type: Performance
    $234.95
    Save 14%
    List $271.95 Save $37.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Replaces 8 Piece Ignition Coil Set TRQ Performance ICA71261

    VIDEO

    Performance Ignition Coil Set
    15 reviews
    Brand: TRQ Performance - ICA71261
    • Ignition Coil Style: Square Style
    • Quantity: 8 Piece
    • Ignition Coil Color: Red
    • Kit Includes: (8) Performance Ignition Coils
    • Ignition Coil Type: Performance
    $234.95
    Save 14%
    List $271.95 Save $37.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

  • Notify When Available

    VIDEO

    Kit image

    Replaces Spark Plug Wire Heat Shield 8 Piece Set TRQ IWA69909

    2 reviews
    Brand: TRQ
    - IWA69909

    • Quantity: 8 Piece Set
    • Kit Includes: (2) Spark Plug Wire Heat Shields
    $32.95
    Save 21%
    List $41.95 Save $9.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Replaces Spark Plug Wire Heat Shield 8 Piece Set TRQ IWA69909

    VIDEO

    Kit image
    2 reviews
    Brand: TRQ - IWA69909
    • Quantity: 8 Piece Set
    • Kit Includes: (2) Spark Plug Wire Heat Shields
    $32.95
    Save 21%
    List $41.95 Save $9.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

  • Notify When Available

    VIDEO

    Kit image

    Replaces 9 Piece Performance Ignition Kit TRQ Performance TKA05730

    2 reviews
    Brand: TRQ Performance
    - TKA05730

    • Product Line: Performance
    • Kit Includes: (8) Spark Plugs
    • Quantity: 9 Piece
    • Spark Plug Type: Iridium
    • Kit Includes: (1) Performance Spark Plug Wire Set
    $94.95
    Save 22%
    List $121.95 Save $27.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Replaces 9 Piece Performance Ignition Kit TRQ Performance TKA05730

    VIDEO

    Kit image
    2 reviews
    Brand: TRQ Performance - TKA05730
    • Product Line: Performance
    • Kit Includes: (8) Spark Plugs
    • Quantity: 9 Piece
    • Spark Plug Type: Iridium
    • Kit Includes: (1) Performance Spark Plug Wire Set
    $94.95
    Save 22%
    List $121.95 Save $27.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

  • Notify When Available
    Engine Oil Cooler Hose Assembly

    Replaces 2003 Chevrolet Silverado 1500 V8 6.0L Inlet & Outlet Engine Oil Cooler Hose Assembly TRQ ECA62413

    2 reviews
    Brand: TRQ
    - ECA62413

    $94.95
    Save 26%
    List $128.95 Save $34.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Replaces 2003 Chevrolet Silverado 1500 V8 6.0L Inlet & Outlet Engine Oil Cooler Hose Assembly TRQ ECA62413

    Engine Oil Cooler Hose Assembly
    2 reviews
    Brand: TRQ - ECA62413
    $94.95
    Save 26%
    List $128.95 Save $34.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

  • Notify When Available

    VIDEO

    Distributor

    Replaces 2003 Chevrolet Silverado 1500 V6 4.3L Distributor TRQ EDA71787

    Brand: TRQ
    - EDA71787

    $74.95
    Save 29%
    List $105.95 Save $31.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Replaces 2003 Chevrolet Silverado 1500 V6 4.3L Distributor TRQ EDA71787

    VIDEO

    Distributor
    Brand: TRQ - EDA71787
    $74.95
    Save 29%
    List $105.95 Save $31.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

  • Notify When Available

    VIDEO

    Starter

    Replaces 2003 Chevrolet Silverado 1500 V6 4.3L Starter TRQ STA03037

    9 reviews
    Brand: TRQ
    - STA03037

    $119.95
    Save 28%
    List $166.95 Save $47.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Replaces 2003 Chevrolet Silverado 1500 V6 4.3L Starter TRQ STA03037

    VIDEO

    Starter
    9 reviews
    Brand: TRQ - STA03037
    $119.95
    Save 28%
    List $166.95 Save $47.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

  • Notify When Available

    VIDEO

    Kit image

    Replaces 9 Piece Ignition Kit TRQ ICA65503

    12 reviews
    Brand: TRQ
    - ICA65503

    • Ignition Coil Style: Square Style
    • Kit Includes: (1) Spark Plug Wire Set
    • Quantity: 9 Piece
    • Kit Includes: (1) Ignition Coil Set
    $224.95
    Save 25%
    List $300.95 Save $76.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Replaces 9 Piece Ignition Kit TRQ ICA65503

    VIDEO

    Kit image
    12 reviews
    Brand: TRQ - ICA65503
    • Ignition Coil Style: Square Style
    • Kit Includes: (1) Spark Plug Wire Set
    • Quantity: 9 Piece
    • Kit Includes: (1) Ignition Coil Set
    $224.95
    Save 25%
    List $300.95 Save $76.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

  • Notify When Available

    VIDEO

    Spark Plug Wire Set

    Replaces Spark Plug Wire Set TRQ IWA69001

    4 reviews
    Brand: TRQ
    - IWA69001

    $59.95
    Save 13%
    List $68.95 Save $9.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Replaces Spark Plug Wire Set TRQ IWA69001

    VIDEO

    Spark Plug Wire Set
    4 reviews
    Brand: TRQ - IWA69001
    $59.95
    Save 13%
    List $68.95 Save $9.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

  • Notify When Available

    VIDEO

    Spark Plug Wire Set

    Replaces Spark Plug Wire Set TRQ IWA69028

    2 reviews
    Brand: TRQ
    - IWA69028

    $51.95
    Save 28%
    List $71.95 Save $20.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Replaces Spark Plug Wire Set TRQ IWA69028

    VIDEO

    Spark Plug Wire Set
    2 reviews
    Brand: TRQ - IWA69028
    $51.95
    Save 28%
    List $71.95 Save $20.00

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

    Guaranteed to Fit 2003 Chevrolet Silverado 1500

1

...

3 4 5 6 7

...

15
Close



Chevrolet is a registered trademark of General Motors Company. 1A Auto is not affiliated with or sponsored by Chevrolet 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
Enter Vehicle Year Make Model

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

Year
Make
Model
Options
Drivetrain

This part doesn't fit a . Select from parts that fit.

Show parts that fit