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Subaru Legacy Ignition Knock (Detonation) Sensor Replacement

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  1. ✓ In Stock 1990-1996 Subaru Legacy Ignition Knock (Detonation) Sensor (Santech/ Omega Envir. Tech.)

    1990-1996 Subaru Legacy Ignition Knock (Detonation) Sensor (Santech/ Omega Envir. Tech.)

    Partslink #: W0133-1623386
    $24.93 View part →
  2. ✓ In Stock 2008-2011 Subaru Legacy Ignition Knock (Detonation) Sensor (Autopart International)

    2008-2011 Subaru Legacy Ignition Knock (Detonation) Sensor (Autopart International)

    Partslink #: W0133-3430508

    Located: On Block Next to Each Head

    $27.04 View part →
  3. ✓ In Stock 1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (URO Parts)

    1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (URO Parts)

    Partslink #: SU1317608

    Includes Harness

    $28.33 View part →
  4. ✓ In Stock 1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (Santech/ Omega Envir. Tech.)

    1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (Santech/ Omega Envir. Tech.)

    Partslink #: W0133-1653100
    $30.42 View part →
  5. ✓ In Stock 2002-2006 Subaru Legacy Ignition Knock (Detonation) Sensor (Santech/ Omega Envir. Tech.)

    2002-2006 Subaru Legacy Ignition Knock (Detonation) Sensor (Santech/ Omega Envir. Tech.)

    Partslink #: W0133-1607069
    $30.77 View part →
  6. ✓ In Stock 1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (True Tech)

    1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (True Tech)

    Partslink #: KS98T
    $32.80 View part →
  7. ✓ In Stock 2008-2011 Subaru Legacy Ignition Knock (Detonation) Sensor (Santech/ Omega Envir. Tech.)

    2008-2011 Subaru Legacy Ignition Knock (Detonation) Sensor (Santech/ Omega Envir. Tech.)

    Partslink #: W0133-1780491

    Located: On Block Next to Each Head

    $33.66 View part →
  8. ✓ In Stock 1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (Autopart International)

    1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (Autopart International)

    Partslink #: W0133-3368785
    $34.24 View part →
  9. ✓ In Stock 1998-2002 Subaru Legacy Ignition Knock (Detonation) Sensor (Holstein)

    1998-2002 Subaru Legacy Ignition Knock (Detonation) Sensor (Holstein)

    Partslink #: 2KNC0005
    $37.17 View part →
  10. ✓ In Stock 2008-2011 Subaru Legacy Ignition Knock (Detonation) Sensor (Global Parts)

    2008-2011 Subaru Legacy Ignition Knock (Detonation) Sensor (Global Parts)

    Partslink #: 1811751
    $37.23 View part →
  11. ✓ In Stock 2012-2015 Subaru Legacy Ignition Knock (Detonation) Sensor (Global Parts)

    2012-2015 Subaru Legacy Ignition Knock (Detonation) Sensor (Global Parts)

    Partslink #: 1814969
    $39.63 View part →
  12. ✓ In Stock 1990-1996 Subaru Legacy Ignition Knock (Detonation) Sensor (Global Parts)

    1990-1996 Subaru Legacy Ignition Knock (Detonation) Sensor (Global Parts)

    Partslink #: 1811777
    $46.33 View part →
  13. ✓ In Stock 1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (Global Parts)

    1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (Global Parts)

    Partslink #: 1811742
    $46.33 View part →
  14. ✓ In Stock 1997-1999 Subaru Legacy Ignition Knock (Detonation) Sensor (Global Parts)

    1997-1999 Subaru Legacy Ignition Knock (Detonation) Sensor (Global Parts)

    Partslink #: 1811757
    $46.33 View part →
  15. ✓ In Stock 2008-2011 Subaru Legacy Ignition Knock (Detonation) Sensor (Motorad)

    2008-2011 Subaru Legacy Ignition Knock (Detonation) Sensor (Motorad)

    Partslink #: 1KS1029
    $48.67 View part →
  16. ✓ In Stock 2002-2004 Subaru Legacy Ignition Knock (Detonation) Sensor (Global Parts)

    2002-2004 Subaru Legacy Ignition Knock (Detonation) Sensor (Global Parts)

    Partslink #: 1811788
    $48.85 View part →
  17. ✓ In Stock 2005-2008 Subaru Legacy Ignition Knock (Detonation) Sensor (Global Parts)

    2005-2008 Subaru Legacy Ignition Knock (Detonation) Sensor (Global Parts)

    Partslink #: 1811809
    $48.85 View part →
  18. ✓ In Stock 2008-2011 Subaru Legacy Ignition Knock (Detonation) Sensor (Holstein)

    2008-2011 Subaru Legacy Ignition Knock (Detonation) Sensor (Holstein)

    Partslink #: 2KNC0294
    $53.92 View part →
  19. ✓ In Stock 2008-2011 Subaru Legacy Ignition Knock (Detonation) Sensor (Standard Ignition)

    2008-2011 Subaru Legacy Ignition Knock (Detonation) Sensor (Standard Ignition)

    Partslink #: KS302
    $54.74 View part →
  20. ✓ In Stock 2002-2006 Subaru Legacy Ignition Knock (Detonation) Sensor (Autopart International)

    2002-2006 Subaru Legacy Ignition Knock (Detonation) Sensor (Autopart International)

    Partslink #: W0133-3374323
    $56.33 View part →
  21. ✓ In Stock 1997-1999 Subaru Legacy Ignition Knock (Detonation) Sensor (Motorad)

    1997-1999 Subaru Legacy Ignition Knock (Detonation) Sensor (Motorad)

    Partslink #: 1KS1021
    $57.95 View part →
  22. ✓ In Stock 1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (Motorad)

    1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (Motorad)

    Partslink #: 1KS1009
    $58.32 View part →
  23. ✓ In Stock 1990-1996 Subaru Legacy Ignition Knock (Detonation) Sensor (Standard Ignition)

    1990-1996 Subaru Legacy Ignition Knock (Detonation) Sensor (Standard Ignition)

    Partslink #: KS86
    $60.94 View part →
  24. ✓ In Stock 1997-1999 Subaru Legacy Ignition Knock (Detonation) Sensor (True Tech)

    1997-1999 Subaru Legacy Ignition Knock (Detonation) Sensor (True Tech)

    Partslink #: KS96T
    $63.66 View part →
  25. ✓ In Stock 2008-2011 Subaru Legacy Ignition Knock (Detonation) Sensor (NGK)

    2008-2011 Subaru Legacy Ignition Knock (Detonation) Sensor (NGK)

    Partslink #: ID0251
    $65.05 View part →
  26. ✓ In Stock 1996-1999 Subaru Legacy Ignition Knock (Detonation) Sensor (Holstein)

    1996-1999 Subaru Legacy Ignition Knock (Detonation) Sensor (Holstein)

    Partslink #: 2KNC0014
    $67.75 View part →
  27. ✓ In Stock 1995-1996 Subaru Legacy Ignition Knock (Detonation) Sensor (Beck Arnley)

    1995-1996 Subaru Legacy Ignition Knock (Detonation) Sensor (Beck Arnley)

    Partslink #: 158-0975
    $68.47 View part →
  28. ✓ In Stock 1990-1996 Subaru Legacy Ignition Knock (Detonation) Sensor (Motorad)

    1990-1996 Subaru Legacy Ignition Knock (Detonation) Sensor (Motorad)

    Partslink #: 1KS1061
    $68.97 View part →
  29. ✓ In Stock 1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (Walker Products)

    1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (Walker Products)

    Partslink #: 242-1038
    $69.34 View part →
  30. ✓ In Stock 1997-1999 Subaru Legacy Ignition Knock (Detonation) Sensor (Walker Products)

    1997-1999 Subaru Legacy Ignition Knock (Detonation) Sensor (Walker Products)

    Partslink #: 242-1037
    $69.34 View part →
  31. ✓ In Stock 2012-2023 Subaru Legacy Ignition Knock (Detonation) Sensor (Standard Ignition)

    2012-2023 Subaru Legacy Ignition Knock (Detonation) Sensor (Standard Ignition)

    Partslink #: KS413
    $71.13 View part →
  32. ✓ In Stock 2002-2004 Subaru Legacy Ignition Knock (Detonation) Sensor (Standard Ignition)

    2002-2004 Subaru Legacy Ignition Knock (Detonation) Sensor (Standard Ignition)

    Partslink #: KS280
    $71.21 View part →
  33. ✓ In Stock 2010-2012 Subaru Legacy Ignition Knock (Detonation) Sensor (Beck Arnley)

    2010-2012 Subaru Legacy Ignition Knock (Detonation) Sensor (Beck Arnley)

    Partslink #: 158-1804
    $72.56 View part →
  34. ✓ In Stock 1997-1999 Subaru Legacy Ignition Knock (Detonation) Sensor (Standard Ignition)

    1997-1999 Subaru Legacy Ignition Knock (Detonation) Sensor (Standard Ignition)

    Partslink #: KS96
    $73.43 View part →
  35. ✓ In Stock 1990-1997 Subaru Legacy Ignition Knock (Detonation) Sensor (Hitachi)

    1990-1997 Subaru Legacy Ignition Knock (Detonation) Sensor (Hitachi)

    Partslink #: KNS0004

    Grade: Actual OE Terminal Quantity: 1 Connector Gender: Male Terminal Type: Blade

    $74.48 View part →
  36. ✓ In Stock 1990-1996 Subaru Legacy Ignition Knock (Detonation) Sensor (Walker Products)

    1990-1996 Subaru Legacy Ignition Knock (Detonation) Sensor (Walker Products)

    Partslink #: 242-1035
    $76.56 View part →
  37. ✓ In Stock 2006-2009 Subaru Legacy Ignition Knock (Detonation) Sensor (Beck Arnley)

    2006-2009 Subaru Legacy Ignition Knock (Detonation) Sensor (Beck Arnley)

    Partslink #: 158-1664
    $77.19 View part →
  38. ✓ In Stock 2012-2015 Subaru Legacy Ignition Knock (Detonation) Sensor (Facet)

    2012-2015 Subaru Legacy Ignition Knock (Detonation) Sensor (Facet)

    Partslink #: 9.3236
    $78.12 View part →
  39. ✓ In Stock 1998-2002 Subaru Legacy Ignition Knock (Detonation) Sensor (Hitachi)

    1998-2002 Subaru Legacy Ignition Knock (Detonation) Sensor (Hitachi)

    Partslink #: KNS0006

    Grade: Actual OE Terminal Quantity: 1 Connector Gender: Male Terminal Type: Blade

    $80.54 View part →
  40. ✓ In Stock 1996-1999 Subaru Legacy Ignition Knock (Detonation) Sensor (Hitachi)

    1996-1999 Subaru Legacy Ignition Knock (Detonation) Sensor (Hitachi)

    Partslink #: KNS0005

    Grade: Actual OE Terminal Quantity: 1 Connector Gender: Male Terminal Type: Blade

    $83.56 View part →
  41. ✓ In Stock 2005-2006 Subaru Legacy Ignition Knock (Detonation) Sensor (Beck Arnley)

    2005-2006 Subaru Legacy Ignition Knock (Detonation) Sensor (Beck Arnley)

    Partslink #: 158-1303
    $84.17 View part →
  42. ✓ In Stock 2001-2004 Subaru Legacy Ignition Knock (Detonation) Sensor (Holstein)

    2001-2004 Subaru Legacy Ignition Knock (Detonation) Sensor (Holstein)

    Partslink #: 2KNC0135
    $85.14 View part →
  43. ✓ In Stock 1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (Standard Ignition)

    1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (Standard Ignition)

    Partslink #: KS98
    $87.13 View part →
  44. ✓ In Stock 2005-2006 Subaru Legacy Ignition Knock (Detonation) Sensor (Global Parts)

    2005-2006 Subaru Legacy Ignition Knock (Detonation) Sensor (Global Parts)

    Partslink #: 1811815

    Brown Connector

    $87.91 View part →
  45. ✓ In Stock 2006-2009 Subaru Legacy Ignition Knock (Detonation) Sensor (Standard Ignition)

    2006-2009 Subaru Legacy Ignition Knock (Detonation) Sensor (Standard Ignition)

    Partslink #: KS303
    $91.25 View part →
  46. ✓ In Stock 2005-2006 Subaru Legacy Ignition Knock (Detonation) Sensor (Standard Ignition)

    2005-2006 Subaru Legacy Ignition Knock (Detonation) Sensor (Standard Ignition)

    Partslink #: KS281
    $91.91 View part →
  47. ✓ In Stock 1990-1996 Subaru Legacy Ignition Knock (Detonation) Sensor (Autopart International)

    1990-1996 Subaru Legacy Ignition Knock (Detonation) Sensor (Autopart International)

    Partslink #: W0133-3401535
    $95.49 View part →
  48. ✓ In Stock 2012-2019 Subaru Legacy Ignition Knock (Detonation) Sensor (Delphi)

    2012-2019 Subaru Legacy Ignition Knock (Detonation) Sensor (Delphi)

    Partslink #: AS10286
    $98.44 View part →
  49. ✓ In Stock 1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (Delphi)

    1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (Delphi)

    Partslink #: AS10092
    $107.60 View part →
  50. ✓ In Stock 1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (Bosch)

    1999-2001 Subaru Legacy Ignition Knock (Detonation) Sensor (Bosch)

    Partslink #: 0986JG0835
    $109.62 View part →
  51. ✓ In Stock 2010-2012 Subaru Legacy Ignition Knock (Detonation) Sensor (Standard Ignition)

    2010-2012 Subaru Legacy Ignition Knock (Detonation) Sensor (Standard Ignition)

    Partslink #: KS381
    $117.88 View part →
  52. ✓ In Stock 1997-1999 Subaru Legacy Ignition Knock (Detonation) Sensor (Autopart International)

    1997-1999 Subaru Legacy Ignition Knock (Detonation) Sensor (Autopart International)

    Partslink #: W0133-3493995
    $122.45 View part →
  53. ✓ In Stock 2007-2009 Subaru Legacy Ignition Knock (Detonation) Sensor (Autopart International)

    2007-2009 Subaru Legacy Ignition Knock (Detonation) Sensor (Autopart International)

    Partslink #: W0133-3432454

    Located: Under Intake Manifold

    $123.94 View part →
  54. ✓ In Stock 2005-2006 Subaru Legacy Ignition Knock (Detonation) Sensor (Motorad)

    2005-2006 Subaru Legacy Ignition Knock (Detonation) Sensor (Motorad)

    Partslink #: W0133-1768143
    $133.42 View part →
  55. ✓ In Stock 1997-1999 Subaru Legacy Ignition Knock (Detonation) Sensor (Hitachi)

    1997-1999 Subaru Legacy Ignition Knock (Detonation) Sensor (Hitachi)

    Partslink #: W0133-2766009
    $153.93 View part →
  56. ✓ In Stock 2007-2009 Subaru Legacy Ignition Knock (Detonation) Sensor (Genuine)

    2007-2009 Subaru Legacy Ignition Knock (Detonation) Sensor (Genuine)

    Partslink #: W0133-1772410

    Located: Under Intake Manifold

    $171.29 View part →
  57. ✓ In Stock 2017-2023 Subaru Legacy Ignition Knock (Detonation) Sensor (Genuine)

    2017-2023 Subaru Legacy Ignition Knock (Detonation) Sensor (Genuine)

    Partslink #: W0133-4088790

    Production: 02/01/2017-

    $179.45 View part →
  58. ✓ In Stock 2008-2011 Subaru Legacy Ignition Knock (Detonation) Sensor (Genuine)

    2008-2011 Subaru Legacy Ignition Knock (Detonation) Sensor (Genuine)

    Partslink #: W0133-1780491

    Located: On Block Next to Each Head

    $181.10 View part →
  59. ✓ In Stock 2005-2006 Subaru Legacy Ignition Knock (Detonation) Sensor (Genuine)

    2005-2006 Subaru Legacy Ignition Knock (Detonation) Sensor (Genuine)

    Partslink #: W0133-1768143
    $181.10 View part →
  60. ✓ In Stock 2012-2019 Subaru Legacy Ignition Knock (Detonation) Sensor (Febi)

    2012-2019 Subaru Legacy Ignition Knock (Detonation) Sensor (Febi)

    Partslink #: W0133-4380150
    $218.96 View part →
  61. ✓ In Stock 2010-2013 Subaru Legacy Ignition Knock (Detonation) Sensor (Global Parts)

    2010-2013 Subaru Legacy Ignition Knock (Detonation) Sensor (Global Parts)

    Partslink #: 1811958
    $254.04 View part →

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Ignition Knock (Detonation) Sensor Compatibility for Subaru Legacy

Browse our selection of quality ignition knock (detonation) sensor parts designed specifically for your Subaru Legacy. We carry options across multiple trim levels, body styles, and engine configurations to ensure a perfect fit.

Available Trims

2.0 · 2.0R · 2.5GT · 2.5i · 2.5i Convenience · 2.5i Limited · 2.5i Premium · 2.5i Special Edition · 2.5i Sport · 2.5i Touring · 3.0 · 3.0 R · 3.0 R Limited · 3.0 R Premier · 3.6R · 3.6R Limited · 3.6R Premium · 3.6R Touring · 4x4 · Alpine Sport · Base · Brighton · Convenience · GT · GT Limited · GT spec.B · L · L 30th Anniversary · L 35th Anniversary · L 4x4 · L SE · LS · LS 4x4 · LSi · Limited · Limited 30th Anniversary · Limited GT · Limited XT · Outback · Outback Limited · Outdoor · Postal · Premier · Premier GT · Premium · R · SUS 30th Anniversary · Sport · Sun Sport · Touring · Touring XT · i

Body Types

Sedan · Wagon

Engine Options

H4 2.0L · H4 2.2L · H4 2.4L · H4 2.5L · H6 3.0L · H6 3.6L

Transmissions

Automatic · Automatic CVT · Manual · U/K

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