2003 GMC Sierra 1500 Engine Parts


  • Guaranteed to Fit Your

    2003 GMC Sierra 1500

    2003 GMC Sierra 1500 Engine Knock Sensor & Harness Kit

    Ships Same Day for orders placed by 4 P.M. ET

    $89.95
    Part #: 1AEEK00589

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    2003 GMC Sierra 1500

    2003 GMC Sierra 1500 O2 Oxygen Sensor

    Ships Same Day for orders placed by 4 P.M. ET

    $32.95
    Save 21%
    List: $41.95 Save: $9.00
    Part #: 1AEOS01029

  • Guaranteed to Fit Your

    2003 GMC Sierra 1500

    2003 GMC Sierra 1500 O2 Oxygen Sensor

    Ships Same Day for orders placed by 4 P.M. ET

    $28.95
    Save 33%
    List: $42.95 Save: $14.00
    Part #: 1AEOS00114

  • Dorman

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    2003 GMC Sierra 1500 Exhaust Manifold Hardware Kit

    Ships Same Day for orders placed by 4 P.M. ET

    $21.95
    Save 33%
    List: $32.95 Save: $11.00
    Part #: 1AEEM00731

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    2003 GMC Sierra 1500

    2003 GMC Sierra 1500 O2 Oxygen Sensor with Install Tool

    Ships Same Day for orders placed by 4 P.M. ET

    $36.95
    Save 33%
    List: $54.95 Save: $18.00
    Part #: 1AEEK00521

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    2003 GMC Sierra 1500

    2003 GMC Sierra 1500 V8 6.0L Upstream O2 Oxygen Sensor

    Ships Same Day for orders placed by 4 P.M. ET

    $28.95
    Save 33%
    List: $42.95 Save: $14.00
    Part #: 1AEOS00072

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    2003 GMC Sierra 1500

    2003 GMC Sierra 1500 V8 6.0L Downstream O2 Oxygen Sensor

    Ships Same Day for orders placed by 4 P.M. ET

    $29.95
    Save 32%
    List: $43.95 Save: $14.00
    Part #: 1AEOS00074

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    2003 GMC Sierra 1500

    2003 GMC Sierra 1500 Engine Knock Sensor Harness with Dual Connectors with Grommets

    Ships Same Day for orders placed by 4 P.M. ET

    $26.95
    Save 13%
    List: $30.95 Save: $4.00
    Part #: 1AZWH00060

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    2003 GMC Sierra 1500

    2003 GMC Sierra 1500 O2 Oxygen Sensor with Install Tool

    Ships Same Day for orders placed by 4 P.M. ET

    $37.95
    Save 35%
    List: $57.95 Save: $20.00
    Part #: 1AEEK00685

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    2003 GMC Sierra 1500

    2003 GMC Sierra 1500 Engine Knock Sensor Harness with Dual Connectors with Grommets General Motors OEM 12601822

    Ships Same Day for orders placed by 4 P.M. ET

    $69.95
    Save 33%
    List: $104.95 Save: $35.00
    Part #: GMZWH00005

  • Dorman

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    2003 GMC Sierra 1500 Black Keyless Remote Insert & Case for Models with FCC ID LHJ011 or FCC ID MYT3X6898B Dorman 13618

    • FCC ID: FCC ID MYT3X6898B
    • FCC ID: FCC ID LHJ011
    • Color: Black

    Ships Same Day for orders placed by 4 P.M. ET

    $19.95
    Save 31%
    List: $28.95 Save: $9.00
    Part #: 1AKRR00033

  • AC DELCO

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    2003 GMC Sierra 1500 Engine Oil Pump

    Ships Same Day for orders placed by 4 P.M. ET

    $111.95
    Save 33%
    List: $166.95 Save: $55.00
    Part #: ACOPM00001

  • Walker Products

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    2003 GMC Sierra 1500 O2 Oxygen Sensor

    Ships Same Day for orders placed by 4 P.M. ET

    $46.95
    Save 33%
    List: $69.95 Save: $23.00
    Part #: WKEOS00071

  • Dorman

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    2003 GMC Sierra 1500 Engine Oil Dipstick Tube

    Ships Same Day for orders placed by 4 P.M. ET

    $34.95
    Save 33%
    List: $51.95 Save: $17.00
    Part #: 1AEMX00136

  • AC DELCO

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    2003 GMC Sierra 1500 O2 Oxygen Sensor

    Ships Same Day for orders placed by 4 P.M. ET

    $64.95
    Save 34%
    List: $97.95 Save: $33.00
    Part #: ACEOS00002
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