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Subaru Legacy Oxygen Sensor Replacement

1
SELECT Year
  1. ✓ In Stock 1999-2004 Subaru Legacy Oxygen Sensor - Downstream (Spectra)

    1999-2004 Subaru Legacy Oxygen Sensor - Downstream (Spectra)

    Partslink #: OS5194
    $24.52 View part →
  2. ✓ In Stock 1999-2001 Subaru Legacy Oxygen Sensor - Downstream (Spectra)

    1999-2001 Subaru Legacy Oxygen Sensor - Downstream (Spectra)

    Partslink #: OS5410

    w/ California Emissions

    $25.01 View part →
  3. ✓ In Stock 1995-1998 Subaru Legacy Oxygen Sensor - Downstream or Upstream (Spectra)

    1995-1998 Subaru Legacy Oxygen Sensor - Downstream or Upstream (Spectra)

    Partslink #: OS5197
    $28.70 View part →
  4. ✓ In Stock 1996-1999 Subaru Legacy Oxygen Sensor - Upstream (Spectra)

    1996-1999 Subaru Legacy Oxygen Sensor - Upstream (Spectra)

    Partslink #: OS5032
    $29.07 View part →
  5. ✓ In Stock 1990-1994 Subaru Legacy Oxygen Sensor - Upstream (Spectra)

    1990-1994 Subaru Legacy Oxygen Sensor - Upstream (Spectra)

    Partslink #: OS5311
    $29.25 View part →
  6. ✓ In Stock 1990-1994 Subaru Legacy Oxygen Sensor - Upstream (NGK)

    1990-1994 Subaru Legacy Oxygen Sensor - Upstream (NGK)

    Partslink #: 24614

    B1S1 OE Equivalent Design

    $48.95 View part →
  7. ✓ In Stock 1999-2004 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    1999-2004 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    Partslink #: 234-4212

    O.E. Quality Universal Replacement Sensor

    $56.53 View part →
  8. ✓ In Stock 1999-2001 Subaru Legacy Oxygen Sensor - Downstream (Walker Products)

    1999-2001 Subaru Legacy Oxygen Sensor - Downstream (Walker Products)

    Partslink #: 350-34212

    B1S2

    $58.13 View part →
  9. ✓ In Stock 1990-1994 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    1990-1994 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 350-33049

    B1S1

    $59.96 View part →
  10. ✓ In Stock 1995-1999 Subaru Legacy Oxygen Sensor - Downstream or Upstream (Walker Products)

    1995-1999 Subaru Legacy Oxygen Sensor - Downstream or Upstream (Walker Products)

    Partslink #: 350-33102

    B1S1

    $60.72 View part →
  11. ✓ In Stock 1990-1994 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    1990-1994 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    Partslink #: 234-3083

    O.E. Quality Direct Fit Replacement Sensor

    $61.38 View part →
  12. ✓ In Stock 2008-2014 Subaru Legacy Oxygen Sensor - Upstream Left or Upstream Right (Spectra)

    2008-2014 Subaru Legacy Oxygen Sensor - Upstream Left or Upstream Right (Spectra)

    Partslink #: OS5322

    Bank 2 Sensor 1 w/ 4 Wires

    $68.10 View part →
  13. ✓ In Stock 2005-2019 Subaru Legacy Oxygen Sensor - Downstream or Downstream Left (Bosch)

    2005-2019 Subaru Legacy Oxygen Sensor - Downstream or Downstream Left (Bosch)

    Partslink #: 15741
    $72.26 View part →
  14. ✓ In Stock 2008-2024 Subaru Legacy Oxygen Sensor - Downstream or Downstream Left or Downstream Right (Walker Products)

    2008-2024 Subaru Legacy Oxygen Sensor - Downstream or Downstream Left or Downstream Right (Walker Products)

    Partslink #: 350-34052

    B1S2

    $89.38 View part →
  15. ✓ In Stock 2015-2019 Subaru Legacy Oxygen Sensor - Downstream Left (Denso)

    2015-2019 Subaru Legacy Oxygen Sensor - Downstream Left (Denso)

    Partslink #: 234-4195

    DENSO is the O.E. Manufacturer / Direct Fit Oxygen Sensor OE

    $125.97 View part →
  16. ✓ In Stock 2008-2020 Subaru Legacy Oxygen Sensor - Downstream or Downstream Left or Downstream Right (Walker Products)

    2008-2020 Subaru Legacy Oxygen Sensor - Downstream or Downstream Left or Downstream Right (Walker Products)

    Partslink #: 250-24487

    B1S2

    $94.35 View part →
  17. ✓ In Stock 2015-2024 Subaru Legacy Oxygen Sensor - Upstream or Upstream Left (Walker Products)

    2015-2024 Subaru Legacy Oxygen Sensor - Upstream or Upstream Left (Walker Products)

    Partslink #: 350-64044

    B1S1

    $145.11 View part →
  18. ✓ In Stock 2015-2019 Subaru Legacy Oxygen Sensor - Upstream Right (Walker Products)

    2015-2019 Subaru Legacy Oxygen Sensor - Upstream Right (Walker Products)

    Partslink #: 350-64028
    $98.36 View part →
  19. ✓ In Stock 2015-2019 Subaru Legacy Oxygen Sensor - Upstream Left (Walker Products)

    2015-2019 Subaru Legacy Oxygen Sensor - Upstream Left (Walker Products)

    Partslink #: 250-54008
    $157.98 View part →
  20. ✓ In Stock 2015-2019 Subaru Legacy Oxygen Sensor - Downstream Right (Denso)

    2015-2019 Subaru Legacy Oxygen Sensor - Downstream Right (Denso)

    Partslink #: 234-4989

    DENSO is the O.E. Manufacturer / Direct Fit Oxygen Sensor OE

    $114.34 View part →
  21. ✓ In Stock 2015-2019 Subaru Legacy Oxygen Sensor - Downstream Left (Denso)

    2015-2019 Subaru Legacy Oxygen Sensor - Downstream Left (Denso)

    Partslink #: W0133-2097307
    $260.97 View part →
  22. ✓ In Stock 2008-2019 Subaru Legacy Oxygen Sensor - Downstream or Downstream Left or Downstream Right (NGK)

    2008-2019 Subaru Legacy Oxygen Sensor - Downstream or Downstream Left or Downstream Right (NGK)

    Partslink #: 24651

    B2S2 OE Equivalent Design

    $119.02 View part →
  23. ✓ In Stock 2010-2014 Subaru Legacy Oxygen Sensor - Upstream Left or Upstream Right (Walker Products)

    2010-2014 Subaru Legacy Oxygen Sensor - Upstream Left or Upstream Right (Walker Products)

    Partslink #: 350-64071
    $142.83 View part →
  24. ✓ In Stock 2008-2009 Subaru Legacy Oxygen Sensor - Upstream Left or Upstream Right (Walker Products)

    2008-2009 Subaru Legacy Oxygen Sensor - Upstream Left or Upstream Right (Walker Products)

    Partslink #: 350-64085
    $143.93 View part →
  25. ✓ In Stock 2008-2009 Subaru Legacy Oxygen Sensor - Upstream Left or Upstream Right (Walker Products)

    2008-2009 Subaru Legacy Oxygen Sensor - Upstream Left or Upstream Right (Walker Products)

    Partslink #: 250-54114
    $159.53 View part →
  26. ✓ In Stock 2010-2014 Subaru Legacy Oxygen Sensor - Upstream Left or Upstream Right (Walker Products)

    2010-2014 Subaru Legacy Oxygen Sensor - Upstream Left or Upstream Right (Walker Products)

    Partslink #: 250-54074
    $160.74 View part →
  27. ✓ In Stock 2015-2020 Subaru Legacy Oxygen Sensor - Upstream or Upstream Right (Walker Products)

    2015-2020 Subaru Legacy Oxygen Sensor - Upstream or Upstream Right (Walker Products)

    Partslink #: 250-54086

    B1S1

    $178.20 View part →
  28. ✓ In Stock 1991-1994 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    1991-1994 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 350-33065

    B1S1

    $68.80 View part →
  29. ✓ In Stock 1996-1999 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    1996-1999 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 250-23091

    B1S1

    $72.15 View part →
  30. ✓ In Stock 1990-1994 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    1990-1994 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 250-23083

    B1S1

    $72.45 View part →
  31. ✓ In Stock 1990-1999 Subaru Legacy Oxygen Sensor - Downstream or Upstream (Bosch)

    1990-1999 Subaru Legacy Oxygen Sensor - Downstream or Upstream (Bosch)

    Partslink #: 15726
    $73.19 View part →
  32. ✓ In Stock 1990-1994 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    1990-1994 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    Partslink #: 13250
    $73.29 View part →
  33. ✓ In Stock 1995-1998 Subaru Legacy Oxygen Sensor - Downstream or Upstream (Walker Products)

    1995-1998 Subaru Legacy Oxygen Sensor - Downstream or Upstream (Walker Products)

    Partslink #: 350-33087

    B1S2

    $73.85 View part →
  34. ✓ In Stock 2004-2012 Subaru Legacy Oxygen Sensor - Center or Downstream (Walker Products)

    2004-2012 Subaru Legacy Oxygen Sensor - Center or Downstream (Walker Products)

    Partslink #: 350-34322

    Calif-ESV B1S2

    $76.06 View part →
  35. ✓ In Stock 1999-2004 Subaru Legacy Oxygen Sensor - Downstream (Walker Products)

    1999-2004 Subaru Legacy Oxygen Sensor - Downstream (Walker Products)

    Partslink #: 350-34563

    B1S2

    $78.19 View part →
  36. ✓ In Stock 1999-2001 Subaru Legacy Oxygen Sensor - Downstream (Walker Products)

    1999-2001 Subaru Legacy Oxygen Sensor - Downstream (Walker Products)

    Partslink #: 250-24290

    B1S2

    $81.34 View part →
  37. ✓ In Stock 1996-1999 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    1996-1999 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    Partslink #: 234-3091

    O.E. Quality Direct Fit Replacement Sensor

    $83.04 View part →
  38. ✓ In Stock 1996-1999 Subaru Legacy Oxygen Sensor - Upstream (NGK)

    1996-1999 Subaru Legacy Oxygen Sensor - Upstream (NGK)

    Partslink #: 24523

    B1S1 OE Equivalent Design

    $84.60 View part →
  39. ✓ In Stock 1991-1994 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    1991-1994 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 250-23103

    B1S1

    $84.89 View part →
  40. ✓ In Stock 2004-2012 Subaru Legacy Oxygen Sensor - Center or Downstream (Walker Products)

    2004-2012 Subaru Legacy Oxygen Sensor - Center or Downstream (Walker Products)

    Partslink #: 250-24440

    Calif-ESV B1S2

    $85.92 View part →
  41. ✓ In Stock 1996-1999 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    1996-1999 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    Partslink #: 13702
    $86.36 View part →
  42. ✓ In Stock 1990-1999 Subaru Legacy Oxygen Sensor - or Downstream or Upstream (Bosch)

    1990-1999 Subaru Legacy Oxygen Sensor - or Downstream or Upstream (Bosch)

    Partslink #: W0133-1614407
    $86.38 View part →
  43. ✓ In Stock 1990-1999 Subaru Legacy Oxygen Sensor - Downstream or Upstream (Denso)

    1990-1999 Subaru Legacy Oxygen Sensor - Downstream or Upstream (Denso)

    Partslink #: 234-3090

    O.E. Quality Universal Replacement Sensor

    $87.03 View part →
  44. ✓ In Stock 1991-1994 Subaru Legacy Oxygen Sensor - Upstream (NGK)

    1991-1994 Subaru Legacy Oxygen Sensor - Upstream (NGK)

    Partslink #: 24524

    B1S1 OE Equivalent Design

    $87.15 View part →
  45. ✓ In Stock 2004-2012 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    2004-2012 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    Partslink #: 234-4732

    DENSO is the O.E. Manufacturer / Direct Fit Oxygen Sensor OE

    $87.37 View part →
  46. ✓ In Stock 1995-1998 Subaru Legacy Oxygen Sensor - Downstream or Upstream (Walker Products)

    1995-1998 Subaru Legacy Oxygen Sensor - Downstream or Upstream (Walker Products)

    Partslink #: 250-23088

    B1S2

    $87.90 View part →
  47. ✓ In Stock 1995-1998 Subaru Legacy Oxygen Sensor - Downstream or Upstream (Denso)

    1995-1998 Subaru Legacy Oxygen Sensor - Downstream or Upstream (Denso)

    Partslink #: 234-3088

    O.E. Quality Direct Fit Replacement Sensor

    $88.90 View part →
  48. ✓ In Stock 2004-2009 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    2004-2009 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    Partslink #: 234-4446

    DENSO is the O.E. Manufacturer / Direct Fit Oxygen Sensor OE

    $90.93 View part →
  49. ✓ In Stock 2005-2014 Subaru Legacy Oxygen Sensor - Downstream or Downstream Rear (Bosch)

    2005-2014 Subaru Legacy Oxygen Sensor - Downstream or Downstream Rear (Bosch)

    Partslink #: 15025

    with California Emissions System; Alternative Fit 1

    $92.57 View part →
  50. ✓ In Stock 1999-2004 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    1999-2004 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    Partslink #: W0133-1616538
    $93.04 View part →
  51. ✓ In Stock 1999-2001 Subaru Legacy Oxygen Sensor - Upstream (Spectra)

    1999-2001 Subaru Legacy Oxygen Sensor - Upstream (Spectra)

    Partslink #: OS5308

    w/ California Emissions w/ 4 Wires

    $93.14 View part →
  52. ✓ In Stock 1995-1998 Subaru Legacy Oxygen Sensor - Downstream or Upstream (NGK)

    1995-1998 Subaru Legacy Oxygen Sensor - Downstream or Upstream (NGK)

    Partslink #: 24520

    B1S2 OE Equivalent Design

    $93.37 View part →
  53. ✓ In Stock 1999-2004 Subaru Legacy Oxygen Sensor - Downstream (Walker Products)

    1999-2004 Subaru Legacy Oxygen Sensor - Downstream (Walker Products)

    Partslink #: 250-24373

    B1S2

    $94.50 View part →
  54. ✓ In Stock 2005-2014 Subaru Legacy Oxygen Sensor - Downstream or Downstream Rear (Bosch)

    2005-2014 Subaru Legacy Oxygen Sensor - Downstream or Downstream Rear (Bosch)

    Partslink #: 15028

    with California Emissions System; Exact Fit

    $94.68 View part →
  55. ✓ In Stock 2004-2009 Subaru Legacy Oxygen Sensor - Downstream or Downstream Front (Bosch)

    2004-2009 Subaru Legacy Oxygen Sensor - Downstream or Downstream Front (Bosch)

    Partslink #: 15031

    with California Emissions System

    $94.97 View part →
  56. ✓ In Stock 1990-1994 Subaru Legacy Oxygen Sensor (Denso)

    1990-1994 Subaru Legacy Oxygen Sensor (Denso)

    Partslink #: W0133-1610219
    $95.29 View part →
  57. ✓ In Stock 1999-2001 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    1999-2001 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    Partslink #: 234-4736

    Calif. DENSO is the O.E. Manufacturer / Direct Fit Oxygen Sensor OE

    $96.13 View part →
  58. ✓ In Stock 1999-2004 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    1999-2004 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    Partslink #: 234-4132

    O.E. Quality Direct Fit Replacement Sensor

    $97.43 View part →
  59. ✓ In Stock 2020-2024 Subaru Legacy Oxygen Sensor - Downstream (Walker Products)

    2020-2024 Subaru Legacy Oxygen Sensor - Downstream (Walker Products)

    Partslink #: 350-34825

    B1S2

    $98.02 View part →
  60. ✓ In Stock 2006-2012 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    2006-2012 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    Partslink #: 234-4445

    DENSO is the O.E. Manufacturer / Direct Fit Oxygen Sensor OE

    $98.86 View part →
  61. ✓ In Stock 1990-1994 Subaru Legacy Oxygen Sensor - Upstream (Delphi)

    1990-1994 Subaru Legacy Oxygen Sensor - Upstream (Delphi)

    Partslink #: ES10301
    $99.46 View part →
  62. ✓ In Stock 2004-2012 Subaru Legacy Oxygen Sensor - Downstream (NGK)

    2004-2012 Subaru Legacy Oxygen Sensor - Downstream (NGK)

    Partslink #: 24642

    B1S2 OE Equivalent Design

    $99.70 View part →
  63. ✓ In Stock 2004-2009 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2004-2009 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 350-64005

    B1S1

    $100.11 View part →
  64. ✓ In Stock 2004-2012 Subaru Legacy Oxygen Sensor - Center or Downstream (Walker Products)

    2004-2012 Subaru Legacy Oxygen Sensor - Center or Downstream (Walker Products)

    Partslink #: W0133-1894076

    w/ California Emissions

    $101.17 View part →
  65. ✓ In Stock 2004-2012 Subaru Legacy Oxygen Sensor - Center or Rear (Delphi)

    2004-2012 Subaru Legacy Oxygen Sensor - Center or Rear (Delphi)

    Partslink #: ES20219
    $101.66 View part →
  66. ✓ In Stock 2008-2009 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2008-2009 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 350-64020

    B1S1

    $101.91 View part →
  67. ✓ In Stock 1995-1998 Subaru Legacy Oxygen Sensor - or Downstream (Bosch)

    1995-1998 Subaru Legacy Oxygen Sensor - or Downstream (Bosch)

    Partslink #: W0133-1653582
    $102.15 View part →
  68. ✓ In Stock 2005-2007 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2005-2007 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 350-64021

    B1S1

    $104.24 View part →
  69. ✓ In Stock 2020 Subaru Legacy Oxygen Sensor - Downstream (Walker Products)

    2020 Subaru Legacy Oxygen Sensor - Downstream (Walker Products)

    Partslink #: 250-241160

    B1S2

    $105.76 View part →
  70. ✓ In Stock 1996-1999 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    1996-1999 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: W0133-1917360
    $105.96 View part →
  71. ✓ In Stock 1995-1998 Subaru Legacy Oxygen Sensor - Downstream or Upstream (Bosch)

    1995-1998 Subaru Legacy Oxygen Sensor - Downstream or Upstream (Bosch)

    Partslink #: 13445
    $108.62 View part →
  72. ✓ In Stock 1996-1999 Subaru Legacy Oxygen Sensor - Front (Delphi)

    1996-1999 Subaru Legacy Oxygen Sensor - Front (Delphi)

    Partslink #: ES10590
    $108.90 View part →
  73. ✓ In Stock 1999-2004 Subaru Legacy Oxygen Sensor - Downstream (NGK)

    1999-2004 Subaru Legacy Oxygen Sensor - Downstream (NGK)

    Partslink #: 24598

    B1S2 OE Equivalent Design

    $110.22 View part →
  74. ✓ In Stock 1990-1994 Subaru Legacy Oxygen Sensor (Walker Products)

    1990-1994 Subaru Legacy Oxygen Sensor (Walker Products)

    Partslink #: W0133-1917163
    $111.71 View part →
  75. ✓ In Stock 1995-1998 Subaru Legacy Oxygen Sensor - Front or Rear (Delphi)

    1995-1998 Subaru Legacy Oxygen Sensor - Front or Rear (Delphi)

    Partslink #: ES10439
    $111.91 View part →
  76. ✓ In Stock 1996-1999 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    1996-1999 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    Partslink #: W0133-1654269
    $114.34 View part →
  77. ✓ In Stock 2004-2009 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    2004-2009 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    Partslink #: W0133-1654566
    $114.45 View part →
  78. ✓ In Stock 1999-2001 Subaru Legacy Oxygen Sensor - Downstream (NGK)

    1999-2001 Subaru Legacy Oxygen Sensor - Downstream (NGK)

    Partslink #: 24576

    B1S2 Calif. Emissions OE Equivalent Design

    $114.64 View part →
  79. ✓ In Stock 1999-2004 Subaru Legacy Oxygen Sensor - Downstream (Bosch)

    1999-2004 Subaru Legacy Oxygen Sensor - Downstream (Bosch)

    Partslink #: 15814
    $114.95 View part →
  80. ✓ In Stock 2000-2002 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2000-2002 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 350-35116

    B1S1

    $115.88 View part →
  81. ✓ In Stock 2010-2012 Subaru Legacy Oxygen Sensor - Downstream (Bosch)

    2010-2012 Subaru Legacy Oxygen Sensor - Downstream (Bosch)

    Partslink #: 15170
    $117.40 View part →
  82. ✓ In Stock 2013-2019 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    2013-2019 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    Partslink #: 234-4907

    DENSO is the O.E. Manufacturer / Direct Fit Oxygen Sensor OE

    $117.83 View part →
  83. ✓ In Stock 2008-2014 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    2008-2014 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    Partslink #: 234-4447

    DENSO is the O.E. Manufacturer / Direct Fit Oxygen Sensor OE

    $119.04 View part →
  84. ✓ In Stock 2000-2002 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2000-2002 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 250-25161

    B1S1

    $119.38 View part →
  85. ✓ In Stock 2006-2012 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    2006-2012 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    Partslink #: W0133-1847928
    $123.55 View part →
  86. ✓ In Stock 2008-2009 Subaru Legacy Oxygen Sensor - Upstream (Spectra)

    2008-2009 Subaru Legacy Oxygen Sensor - Upstream (Spectra)

    Partslink #: OS6145

    Bank 1 Sensor 1 w/ 4 Wires

    $124.70 View part →
  87. ✓ In Stock 1999-2001 Subaru Legacy Oxygen Sensor - Rear (Delphi)

    1999-2001 Subaru Legacy Oxygen Sensor - Rear (Delphi)

    Partslink #: ES20100

    with California Emissions System

    $130.98 View part →
  88. ✓ In Stock 2020 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2020 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 250-25152

    B1S1

    $132.31 View part →
  89. ✓ In Stock 1996-1999 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    1996-1999 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    Partslink #: W0133-1610495
    $133.21 View part →
  90. ✓ In Stock 1999-2004 Subaru Legacy Oxygen Sensor - Rear (Delphi)

    1999-2004 Subaru Legacy Oxygen Sensor - Rear (Delphi)

    Partslink #: ES20188
    $135.11 View part →
  91. ✓ In Stock 1999-2001 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    1999-2001 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    Partslink #: W0133-1608022

    w/ California Emissions

    $137.24 View part →
  92. ✓ In Stock 2000-2002 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    2000-2002 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    Partslink #: 17018
    $138.69 View part →
  93. ✓ In Stock 2008-2014 Subaru Legacy Oxygen Sensor - Rear (Delphi)

    2008-2014 Subaru Legacy Oxygen Sensor - Rear (Delphi)

    Partslink #: ES20223
    $140.10 View part →
  94. ✓ In Stock 2004-2009 Subaru Legacy Oxygen Sensor - Center or Downstream (Denso)

    2004-2009 Subaru Legacy Oxygen Sensor - Center or Downstream (Denso)

    Partslink #: W0133-1828366

    w/ California Emissions

    $140.94 View part →
  95. ✓ In Stock 2010-2012 Subaru Legacy Oxygen Sensor - Upstream (Spectra)

    2010-2012 Subaru Legacy Oxygen Sensor - Upstream (Spectra)

    Partslink #: OS6147

    Bank 1 Sensor 1 w/ 4 Wires

    $142.38 View part →
  96. ✓ In Stock 2005 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2005 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 350-64037

    B1S1

    $142.97 View part →
  97. ✓ In Stock 2010-2012 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2010-2012 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 350-64047

    B1S1

    $143.95 View part →
  98. ✓ In Stock 2010-2012 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2010-2012 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 350-64042

    B1S1

    $143.95 View part →
  99. ✓ In Stock 2013-2019 Subaru Legacy Oxygen Sensor - Downstream (Bosch)

    2013-2019 Subaru Legacy Oxygen Sensor - Downstream (Bosch)

    Partslink #: 18075
    $144.55 View part →
  100. ✓ In Stock 2013-2019 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2013-2019 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 350-64031

    B1S1

    $144.80 View part →
  101. ✓ In Stock 1999-2004 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    1999-2004 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    Partslink #: W0133-1608174
    $145.24 View part →
  102. ✓ In Stock 2004-2009 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2004-2009 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 250-54027

    B1S1

    $145.44 View part →
  103. ✓ In Stock 2004-2009 Subaru Legacy Oxygen Sensor - Center or Downstream (Bosch)

    2004-2009 Subaru Legacy Oxygen Sensor - Center or Downstream (Bosch)

    Partslink #: W0133-1791087

    w/ California Emissions

    $146.69 View part →
  104. ✓ In Stock 2005 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2005 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 250-54061

    B1S1

    $147.37 View part →
  105. ✓ In Stock 1990-1998 Subaru Legacy Oxygen Sensor - or Downstream (Denso)

    1990-1998 Subaru Legacy Oxygen Sensor - or Downstream (Denso)

    Partslink #: W0133-1607818
    $148.24 View part →
  106. ✓ In Stock 2006-2009 Subaru Legacy Oxygen Sensor - Upstream (Autopart International)

    2006-2009 Subaru Legacy Oxygen Sensor - Upstream (Autopart International)

    Partslink #: W0133-3406238

    Air-Fuel Ratio Sensor

    $149.05 View part →
  107. ✓ In Stock 2000-2002 Subaru Legacy Oxygen Sensor - Front (Delphi)

    2000-2002 Subaru Legacy Oxygen Sensor - Front (Delphi)

    Partslink #: ES10923
    $149.25 View part →
  108. ✓ In Stock 2000-2002 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2000-2002 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: W0133-1893836

    Air-Fuel Ratio Sensor

    $154.13 View part →
  109. ✓ In Stock 2005-2007 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2005-2007 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 250-54058

    B1S1

    $155.39 View part →
  110. ✓ In Stock 2013-2019 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    2013-2019 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    Partslink #: W0133-2086227
    $159.09 View part →
  111. ✓ In Stock 2008-2009 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2008-2009 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 250-54064

    B1S1

    $159.54 View part →
  112. ✓ In Stock 2010-2012 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2010-2012 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 250-54068

    B1S1

    $159.54 View part →
  113. ✓ In Stock 2010-2012 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2010-2012 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 250-54067

    B1S1

    $159.54 View part →
  114. ✓ In Stock 2013-2019 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2013-2019 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 250-54084

    B1S1

    $166.62 View part →
  115. ✓ In Stock 1999-2004 Subaru Legacy Oxygen Sensor - Downstream (Bosch)

    1999-2004 Subaru Legacy Oxygen Sensor - Downstream (Bosch)

    Partslink #: W0133-1654351
    $175.49 View part →
  116. ✓ In Stock 2008-2014 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    2008-2014 Subaru Legacy Oxygen Sensor - Downstream (Denso)

    Partslink #: W0133-2093834
    $176.24 View part →
  117. ✓ In Stock 2000-2002 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    2000-2002 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    Partslink #: W0133-1653210

    Air-Fuel Ratio Sensor

    $179.15 View part →
  118. ✓ In Stock 2020-2022 Subaru Legacy Oxygen Sensor - Upstream (NTK)

    2020-2022 Subaru Legacy Oxygen Sensor - Upstream (NTK)

    Partslink #: W0133-1919050

    Air-Fuel Ratio Sensor

    $180.54 View part →
  119. ✓ In Stock 2008-2023 Subaru Legacy Oxygen Sensor - Downstream (NTK)

    2008-2023 Subaru Legacy Oxygen Sensor - Downstream (NTK)

    Partslink #: W0133-1793966
    $188.58 View part →
  120. ✓ In Stock 2000-2002 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    2000-2002 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    Partslink #: W0133-1836424

    Air-Fuel Ratio Sensor

    $189.45 View part →
  121. ✓ In Stock 2004-2009 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2004-2009 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: W0133-1894365

    w/ California Emissions - Air-Fuel Ratio Sensor

    $213.09 View part →
  122. ✓ In Stock 2003-2004 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    2003-2004 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 250-54011

    B1S1

    $213.47 View part →
  123. ✓ In Stock 1999-2001 Subaru Legacy Oxygen Sensor - Front (Delphi)

    1999-2001 Subaru Legacy Oxygen Sensor - Front (Delphi)

    Partslink #: ES10938

    with California Emissions System

    $219.81 View part →
  124. ✓ In Stock 1999-2001 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    1999-2001 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 350-64068

    Calif-ESV B1S1

    $223.61 View part →
  125. ✓ In Stock 1999-2001 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    1999-2001 Subaru Legacy Oxygen Sensor - Upstream (Walker Products)

    Partslink #: 250-54015

    Calif-ESV B1S1

    $223.61 View part →
  126. ✓ In Stock 2020-2022 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    2020-2022 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    Partslink #: 16617
    $226.58 View part →
  127. ✓ In Stock 2004-2009 Subaru Legacy Oxygen Sensor - Front (Delphi)

    2004-2009 Subaru Legacy Oxygen Sensor - Front (Delphi)

    Partslink #: ES10943
    $236.10 View part →
  128. ✓ In Stock 2008-2009 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    2008-2009 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    Partslink #: 15964
    $247.28 View part →
  129. ✓ In Stock 2013-2014 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    2013-2014 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    Partslink #: 18081
    $249.23 View part →
  130. ✓ In Stock 2020-2024 Subaru Legacy Oxygen Sensor - Downstream (NGK)

    2020-2024 Subaru Legacy Oxygen Sensor - Downstream (NGK)

    Partslink #: 24270

    B1S2 OE MFR: NTK

    $252.11 View part →
  131. ✓ In Stock 2004-2005 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    2004-2005 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    Partslink #: 15586
    $255.77 View part →
  132. ✓ In Stock 2006-2009 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    2006-2009 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    Partslink #: W0133-1894364

    Air-Fuel Ratio Sensor

    $256.01 View part →
  133. ✓ In Stock 2010-2014 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    2010-2014 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    Partslink #: 18037
    $256.88 View part →
  134. ✓ In Stock 2008-2009 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    2008-2009 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    Partslink #: W0133-1815466

    Air-Fuel Ratio Sensor

    $265.44 View part →
  135. ✓ In Stock 2004-2005 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    2004-2005 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    Partslink #: W0133-1853136

    w/ California Emissions - Air-Fuel Ratio Sensor

    $279.38 View part →
  136. ✓ In Stock 2010-2012 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    2010-2012 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    Partslink #: W0133-1953670

    Air-Fuel Ratio Sensor

    $281.09 View part →
  137. ✓ In Stock 2008-2014 Subaru Legacy Oxygen Sensor - Front (Delphi)

    2008-2014 Subaru Legacy Oxygen Sensor - Front (Delphi)

    Partslink #: ES10935
    $293.82 View part →
  138. ✓ In Stock 1999-2001 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    1999-2001 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    Partslink #: W0133-1606141

    Air-Fuel Ratio Sensor

    $294.71 View part →
  139. ✓ In Stock 2003-2004 Subaru Legacy Oxygen Sensor - Front (Delphi)

    2003-2004 Subaru Legacy Oxygen Sensor - Front (Delphi)

    Partslink #: ES10936
    $306.98 View part →
  140. ✓ In Stock 2003-2004 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    2003-2004 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    Partslink #: W0133-1604381

    Air-Fuel Ratio Sensor

    $312.51 View part →
  141. ✓ In Stock 2003-2004 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    2003-2004 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    Partslink #: 15501
    $320.06 View part →
  142. ✓ In Stock 2005-2007 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    2005-2007 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    Partslink #: W0133-1853284

    Air-Fuel Ratio Sensor

    $321.27 View part →
  143. ✓ In Stock 2005-2007 Subaru Legacy Oxygen Sensor - Front (Delphi)

    2005-2007 Subaru Legacy Oxygen Sensor - Front (Delphi)

    Partslink #: ES10942
    $325.43 View part →
  144. ✓ In Stock 2015-2019 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    2015-2019 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    Partslink #: W0133-2097259

    Air-Fuel Ratio Sensor

    $331.08 View part →
  145. ✓ In Stock 2010-2014 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    2010-2014 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    Partslink #: W0133-1953669

    Air-Fuel Ratio Sensor

    $331.80 View part →
  146. ✓ In Stock 2013-2014 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    2013-2014 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    Partslink #: W0133-2097215

    Air-Fuel Ratio Sensor

    $391.50 View part →
  147. ✓ In Stock 2008-2009 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    2008-2009 Subaru Legacy Oxygen Sensor - Upstream (Denso)

    Partslink #: W0133-1953525

    Air-Fuel Ratio Sensor

    $395.22 View part →
  148. ✓ In Stock 1999-2001 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    1999-2001 Subaru Legacy Oxygen Sensor - Upstream (Bosch)

    Partslink #: 13557
    $428.01 View part →

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Oxygen Sensor Compatibility for Subaru Legacy

Browse our selection of quality oxygen 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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