2003 GMC Sierra 2500 HD Engine Parts


  • Guaranteed to Fit Your

    2003 GMC Sierra 2500 HD

    2003 GMC Sierra 2500 HD Engine Knock Sensor & Harness Kit V8 6.0L

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

    $89.95
    Part #: 1AEEK00589

  • Guaranteed to Fit Your

    2003 GMC Sierra 2500 HD

    2003 GMC Sierra 2500 HD V8 6.0L Downstream O2 Oxygen Sensor Passenger Side

    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 2500 HD

    2003 GMC Sierra 2500 HD Exhaust Manifold Hardware Kit Dorman 03413B

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

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

  • Guaranteed to Fit Your

    2003 GMC Sierra 2500 HD

    2003 GMC Sierra 2500 HD 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

  • Guaranteed to Fit Your

    2003 GMC Sierra 2500 HD

    2003 GMC Sierra 2500 HD 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

  • Guaranteed to Fit Your

    2003 GMC Sierra 2500 HD

    2003 GMC Sierra 2500 HD 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

  • Guaranteed to Fit Your

    2003 GMC Sierra 2500 HD

    2003 GMC Sierra 2500 HD V8 6.0L Downstream O2 Oxygen Sensor with Install Tool Passenger Side

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

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

  • Guaranteed to Fit Your

    2003 GMC Sierra 2500 HD

    2003 GMC Sierra 2500 HD 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 2500 HD

    2003 GMC Sierra 2500 HD 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 2500 HD

    2003 GMC Sierra 2500 HD Engine Oil Pump V8 6.0L ACDelco 12586665, 12678151

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

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

  • Dorman

    Guaranteed to Fit Your

    2003 GMC Sierra 2500 HD

    2003 GMC Sierra 2500 HD 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

  • Dorman

    Guaranteed to Fit Your

    2003 GMC Sierra 2500 HD

    2003 GMC Sierra 2500 HD Green Camouflage Keyless Remote Insert & Case for Models with FCC ID LHJ011 or FCC ID MYT3X6898B Dorman 13618GNC

    • FCC ID: FCC ID MYT3X6898B
    • FCC ID: FCC ID LHJ011
    • Color: Green Camouflage

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

    $17.95
    Save 44%
    List: $31.95 Save: $14.00
    Part #: DMKRR00009

  • AC DELCO

    Guaranteed to Fit Your

    2003 GMC Sierra 2500 HD

    2003 GMC Sierra 2500 HD Fuel Filter V8 6.6L Turbo Diesel ACDelco TP3018

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

    $62.95
    Save 34%
    List: $94.95 Save: $32.00
    Part #: ACEFF00002

  • Dorman

    Guaranteed to Fit Your

    2003 GMC Sierra 2500 HD

    2003 GMC Sierra 2500 HD Transfer Case Gasket Dorman 917-562

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

    $17.95
    Save 42%
    List: $30.95 Save: $13.00
    Part #: DMEGS00005

  • Dorman

    Guaranteed to Fit Your

    2003 GMC Sierra 2500 HD

    2003 GMC Sierra 2500 HD Pink Camouflage Keyless Remote Insert & Case for Models with FCC ID LHJ011 or FCC ID MYT3X6898B Dorman 13618PKC

    • FCC ID: FCC ID MYT3X6898B
    • FCC ID: FCC ID LHJ011
    • Color: Pink Camouflage

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

    $17.95
    Save 46%
    List: $32.95 Save: $15.00
    Part #: DMKRR00011
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