2003 Subaru Legacy Engine Parts


  • Guaranteed to Fit Your

    2003 Subaru Legacy

    2003 Subaru Legacy H4 2.5L Upstream (Air / Fuel Ratio) O2 Oxygen Sensor

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

    $52.95
    Save 35%
    List: $81.95 Save: $29.00
    Part #: 1AEOS00036

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    2003 Subaru Legacy

    2003 Subaru Legacy Idler Pulley H4 2.5L

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

    $24.95
    Save 24%
    List: $32.95 Save: $8.00
    Part #: 1AEIP00003

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    2003 Subaru Legacy

    2003 Subaru Legacy H4 2.5L Downstream O2 Oxygen Sensor

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

    $26.95
    Save 37%
    List: $42.95 Save: $16.00
    Part #: 1AEOS00141

  • GATES

    Guaranteed to Fit Your

    2003 Subaru Legacy

    2003 Subaru Legacy Timing Belt Kit with Water Pump H4 2.5L Gates TCKWP307

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

    $212.95
    Save 39%
    List: $351.95 Save: $139.00
    Part #: GAEEK00061

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    2003 Subaru Legacy

    2003 Subaru Legacy Cylinder Head Bolt Kit H4 2.5L (Engine ID EJ253)

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

    $27.95
    Save 38%
    List: $44.95 Save: $17.00
    Part #: 1AEMX00257

  • Walker Products

    Guaranteed to Fit Your

    2003 Subaru Legacy

    2003 Subaru Legacy H4 2.5L Downstream O2 Oxygen Sensor Walker Products 250-24373
    $84.95
    Save 34%
    List: $128.95 Save: $44.00

    Out of Stock

    Part #: WKEOS00058

  • Guaranteed to Fit Your

    2003 Subaru Legacy

    2003 Subaru Legacy Timing Belt and Component Kit with Water Pump and Seals H4 2.5L

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

    $231.95
    Save 36%
    List: $361.95 Save: $130.00
    Part #: 1AEEK00187

  • FELPRO

    Guaranteed to Fit Your

    2003 Subaru Legacy

    2003 Subaru Legacy Cylinder Head Bolt Kit H4 2.5L (Engine ID EJ253) Pair FEL-PRO ES72212

    • Engine ID: Engine ID EJ253
    • Engine Displacement (Metric): H4 2.5L
    • Quantity: Pair

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

    $162.95
    Save 36%
    List: $253.95 Save: $91.00
    Part #: FPEEK00001

  • Walker Products

    Guaranteed to Fit Your

    2003 Subaru Legacy

    2003 Subaru Legacy H4 2.5L Upstream (Air / Fuel Ratio) O2 Oxygen Sensor Walker Products 250-54011

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

    $141.95
    Save 43%
    List: $246.95 Save: $105.00
    Part #: WKEOS00098

  • FELPRO

    Guaranteed to Fit Your

    2003 Subaru Legacy

    2003 Subaru Legacy Cylinder Head Bolt Kit H4 2.5L (Engine ID EJ253) FEL-PRO ES72212

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

    $91.95
    Save 35%
    List: $141.95 Save: $50.00
    Part #: FPEMX00004
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