2003 GMC Sierra 1500 Engine Parts

  • 2003 GMC Sierra 1500 Engine Knock Sensor & Harness Kit

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    Ships Same Day for orders placed by 4pm ET

    $49.95
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    List: $57.95 Save: $8.00
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    Part #: 1AEEK00589
  • 2003 GMC Sierra 1500 O2 Oxygen Sensor

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    Ships Same Day for orders placed by 4pm ET

    $29.95
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    List: $41.95 Save: $12.00
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    Part #: 1AEOS01029
  • 2003 GMC Sierra 1500 O2 Oxygen Sensor

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    Ships Same Day for orders placed by 4pm ET

    $29.95
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    List: $42.95 Save: $13.00
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    Part #: 1AEOS00114
  • 2003 GMC Sierra 1500 V8 6.0L Upstream O2 Oxygen Sensor

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    Ships Same Day for orders placed by 4pm ET

    $31.95
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    List: $42.95 Save: $11.00
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    Part #: 1AEOS00072
  • 2003 GMC Sierra 1500 O2 Oxygen Sensor with Install Tool

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    Ships Same Day for orders placed by 4pm ET

    $39.95
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    List: $54.95 Save: $15.00
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    Part #: 1AEEK00521
  • 2003 GMC Sierra 1500 V8 6.0L Downstream O2 Oxygen Sensor

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    Ships Same Day for orders placed by 4pm ET

    $29.95
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    List: $43.95 Save: $14.00
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    Part #: 1AEOS00074
  • 2003 GMC Sierra 1500 Engine Knock Sensor Harness with Dual Connectors with Grommets

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    Ships Same Day for orders placed by 4pm ET

    $26.95
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    List: $30.95 Save: $4.00
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    Part #: 1AZWH00060
  • 2003 GMC Sierra 1500 Engine Knock Sensor Harness with Dual Connectors with Grommets General Motors OEM 12601822

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    • Connector Type: Dual Connectors with Grommets

    Ships Same Day for orders placed by 4pm ET

    $69.95
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    List: $104.95 Save: $35.00
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    Part #: GMZWH00005
  • 2003 GMC Sierra 1500 O2 Oxygen Sensor with Install Tool

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    Ships Same Day for orders placed by 4pm ET

    $39.95
    Save 31%
    List: $57.95 Save: $18.00
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    Part #: 1AEEK00685
  • 2003 GMC Sierra 1500 O2 Oxygen Sensor

    Walker Products

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    Ships Same Day for orders placed by 4pm ET

    $46.95
    Save 33%
    List: $69.95 Save: $23.00
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    Part #: WKEOS00071
  • 2003 GMC Sierra 1500 O2 Oxygen Sensor

    AC DELCO

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    Ships Same Day for orders placed by 4pm ET

    $61.95
    Save 37%
    List: $97.95 Save: $36.00
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    Part #: ACEOS00002
  • 2003 GMC Sierra 1500 Oil Filler Neck V6 4.3L General Motors OEM 12570623

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    • Engine Displacement (Metric): V6 4.3L

    Ships Same Day for orders placed by 4pm ET

    $29.95
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    List: $39.95 Save: $10.00
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    Part #: GMEOC00001
  • 2003 GMC Sierra 1500 O2 Oxygen Sensor

    Walker Products

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    Ships Same Day for orders placed by 4pm ET

    $52.95
    Save 35%
    List: $80.95 Save: $28.00
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    Part #: WKEOS00039
  • 2003 GMC Sierra 1500 Engine Piston Ring Kit

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    Ships Same Day for orders placed by 4pm ET

    $47.95
    Save 45%
    List: $87.95 Save: $40.00
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    Part #: GMEIC00003
  • 2003 GMC Sierra 1500 Engine Piston Ring Kit

    Guaranteed to Fit Your

    2003 GMC Sierra 1500

    • Quantity: 8 Piece Set

    Ships Same Day for orders placed by 4pm ET

    $306.95
    Save 46%
    List: $572.95 Save: $266.00
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    Part #: GMEEK00015
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