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BMW PartsBMW 525i PartsOxygen Sensor

BMW 525i Oxygen Sensor

Great cars and trucks like your 525i need great parts.

Select Your VehicleAnyone who operates a BMW knows that when it comes to repairing their car, truck, or SUV only the absolute best replacement parts will do. You bought your 525i because its a reputation for performance and German engineering agreed with your nature; so why would you be okay with second best when it comes to great quality auto parts? While it's not hard to find replacement parts for BMW vehicles, these days only the absolute best are required to fix your automobile. Your BMW dealership isn't the only place to buy genuine or original equipment quality replacement parts for your 525i.

The function and purpose of Oxygen Sensor.

Reducing harmful emissions that come from your car or truck depends on the quality and performance of the parts you use. The fuel-injection system on your BMW 525i is runs on signals sent by your ECU which uses data collected by your oxygen sensors. Your BMW 525i oxygen sensors sit in the exhaust manifold, exhaust pipes, and catalytic converter and analyze the quality of the exhaust gases to determine how well your fuel delivery and emissions reduction parts are working. When oxygen sensors fail your car will not get the best fuel economy or produce enough horsepower, and emissions from your tailpipe may be in excess of legal levels.

High quality parts, lowest prices, experienced automotive professionals.

Get your 525i back on the road with the best new or rebuilt parts from the experts at Car Parts Discount. Ordering new BMW parts from www.carpartsdiscount.com means you are getting the best deal on the most superior original and aftermarket replacement 525i parts on the internet. Trust in the value of the parts you get from carpartsdiscount.com and realize incredible savings on all your upcoming repairs. All the BMW 525i Oxygen Sensor parts on this page will fit vehicles made in 2007, 2006, 2005, 2004, 2003, 2002, 2001, 1995, 1994, 1993, 1992, 1991, 1990, 1989. Choose your year below to refine your search.

Info: Select your make and model in the red title bar above so we can show the parts you need.
BMW 525i Oxygen Sensor, OEM: OS5006Spectra Premium
2001-2003 BMW 525i Spectra Premium Oxygen Sensor OS5006
41.15, Save 39%   NEW ITEM
OEM: OS5006, Item: 1112280
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 15733Bosch
2006-2007 BMW 525i Bosch Oxygen Sensor 15733
43.05, Save 39%   NEW ITEM
OEM: 15733, Item: 949791
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Downstream

BMW 525i Oxygen Sensor, OEM: 250-24611/25024611Walker Products
2001-2003 BMW 525i Walker Products Oxygen Sensor 250-24611
46.65, Save 39%   NEW ITEM
OEM: 250-24611, Item: 1195584
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 234-4672/2344672Denso
2001-2003 BMW 525i Denso Oxygen Sensor 234-4672
49.25, Save 39%   NEW ITEM
OEM: 234-4672, Item: 1190295
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 16809Bosch
2006-2007 BMW 525i Bosch Oxygen Sensor 16809
54.25, Save 39%   NEW ITEM
OEM: 16809, Item: 341174
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Rear

BMW 525i Oxygen Sensor, OEM: 250-24392/25024392Walker Products
2001-2003 BMW 525i Walker Products Oxygen Sensor 250-24392
54.25, Save 39%   NEW ITEM
OEM: 250-24392, Item: 1195467
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Downstream

BMW 525i Oxygen Sensor, OEM: 16809Bosch
2006-2007 BMW 525i Bosch Oxygen Sensor 16809
54.65, Save 39%   NEW ITEM
OEM: 16809, Item: 949937
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Downstream

BMW 525i Oxygen Sensor, OEM: 13477Bosch
2001-2003 BMW 525i Bosch Oxygen Sensor 13477
56.85, Save 39%   NEW ITEM
OEM: 13477, Item: 949368
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 234-4683/2344683Denso
2001-2003 BMW 525i Denso Oxygen Sensor 234-4683
59.95, Save 39%   NEW ITEM
OEM: 234-4683, Item: 1190306
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Downstream

BMW 525i Oxygen Sensor, OEM: 250-24464/25024464Walker Products
2006-2007 BMW 525i Walker Products Oxygen Sensor 250-24464
59.95, Save 39%   NEW ITEM
OEM: 250-24464, Item: 1195533
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Downstream

BMW 525i Oxygen Sensor, OEM: 15738Bosch
2001-2005 BMW 525i Bosch Oxygen Sensor 15738
60.15, Save 39%   NEW ITEM
OEM: 15738, Item: 949794
  Only 7 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream, Downstream

BMW 525i Oxygen Sensor, OEM: 13477Bosch
2001-2003 BMW 525i Bosch Oxygen Sensor 13477
60.25, Save 39%   NEW ITEM
OEM: 13477, Item: 64705
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front

BMW 525i Oxygen Sensor, OEM: ES10857Delphi
2001-2003 BMW 525i Delphi Oxygen Sensor ES10857
61.95, Save 39%   NEW ITEM
OEM: ES10857, Item: 997624
  Only 6 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Rear

BMW 525i Oxygen Sensor, OEM: 11 78 1 742 050/11781742050Bosch
2001-2003 BMW 525i Bosch Oxygen Sensor 11 78 1 742 050
62.65, Save 39%   NEW ITEM
OEM: 11 78 1 742 050, Item: 488032
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front, Rear

BMW 525i Oxygen Sensor, OEM: 250-24021/25024021Walker Products
1993-1995 BMW 525i Walker Products Oxygen Sensor 250-24021
63.95, Save 39%   NEW ITEM
OEM: 250-24021, Item: 1195236
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 15109Bosch
2001-2003 BMW 525i Bosch Oxygen Sensor 15109
64.25, Save 39%   NEW ITEM
OEM: 15109, Item: 949578
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Downstream

BMW 525i Oxygen Sensor, OEM: 11 78 7 544 655/11787544655Bosch
2006-2007 BMW 525i Bosch Oxygen Sensor 11 78 7 544 655
64.55, Save 39%   POPULAR
OEM: 11 78 7 544 655, Item: 488061
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Rear

BMW 525i Oxygen Sensor, OEM: 234-4200/2344200Denso
1989-1995 BMW 525i Denso Oxygen Sensor 234-4200
64.85, Save 39%   NEW ITEM
OEM: 234-4200, Item: 1189869
  Only 5 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 234-4685/2344685Denso
1991-1995 BMW 525i Denso Oxygen Sensor 234-4685
65.95, Save 39%   NEW ITEM
OEM: 234-4685, Item: 1190308
  Only 3 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 234-4201/2344201Denso
2001-2005 BMW 525i Denso Oxygen Sensor 234-4201
67.85, Save 39%   NEW ITEM
OEM: 234-4201, Item: 1189870
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream, Downstream

BMW 525i Oxygen Sensor, OEM: 234-4674/2344674Denso
1989-1990 BMW 525i Denso Oxygen Sensor 234-4674
68.95, Save 39%   NEW ITEM
OEM: 234-4674, Item: 1190297
  Only 4 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 15109Bosch
2001-2003 BMW 525i Bosch Oxygen Sensor 15109
69.45, Save 39%   NEW ITEM
OEM: 15109, Item: 66659
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Rear

BMW 525i Oxygen Sensor, OEM: 11 78 1 433 940/11781433940Bosch
2001-2003 BMW 525i Bosch Oxygen Sensor 11 78 1 433 940
70.45, Save 39%   NEW ITEM
OEM: 11 78 1 433 940, Item: 488018
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front, Rear

Bosch
1991-1995 BMW 525i Bosch Oxygen Sensor 13108
73.35, Save 39%   NEW ITEM
OEM: 13108, Item: 64538
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

BMW 525i Oxygen Sensor, OEM: ES10899Delphi
2001-2003 BMW 525i Delphi Oxygen Sensor ES10899
73.65, Save 39%   NEW ITEM
OEM: ES10899, Item: 997634
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front

BMW 525i Oxygen Sensor, OEM: 11 78 1 468 620/11781468620Bosch
1991-1995 BMW 525i Bosch Oxygen Sensor 11 78 1 468 620
77.85, Save 39%   NEW ITEM
OEM: 11 78 1 468 620, Item: 488019
  Only 9 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

BMW 525i Oxygen Sensor, OEM: 25569NGK
2001-2003 BMW 525i NGK Oxygen Sensor 25569
79.75, Save 39%   POPULAR
OEM: 25569, Item: 1399223
  Only 2 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 11 78 7 514 926/11787514926Bosch
2004-2005 BMW 525i Bosch Oxygen Sensor 11 78 7 514 926
81.15, Save 39%   NEW ITEM
OEM: 11 78 7 514 926, Item: 488044
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front

BMW 525i Oxygen Sensor, OEM: 17039Bosch
2006 BMW 525i Bosch Oxygen Sensor 17039
85.15, Save 39%   NEW ITEM
OEM: 17039, Item: 949960
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 17098Bosch
2006-2007 BMW 525i Bosch Oxygen Sensor 17098
85.85, Save 39%   NEW ITEM
OEM: 17098, Item: 949966
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 234-4473/2344473Denso
2004-2005 BMW 525i Denso Oxygen Sensor 234-4473
87.45, Save 39%   NEW ITEM
OEM: 234-4473, Item: 1190117
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Downstream

BMW 525i Oxygen Sensor, OEM: 156-4444/1564444Beck Arnley
1989-1992 BMW 525i Beck Arnley Oxygen Sensor 156-4444
87.55, Save 39%   NEW ITEM
OEM: 156-4444, Item: 946245
  Only 3 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

BMW 525i Oxygen Sensor, OEM: 13109Bosch
1989-1991 BMW 525i Bosch Oxygen Sensor 13109
89.45, Save 39%   NEW ITEM
OEM: 13109, Item: 949246
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 16808Bosch
2006-2007 BMW 525i Bosch Oxygen Sensor 16808
90.95, Save 39%   NEW ITEM
OEM: 16808, Item: 949936
  Only 6 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Downstream

BMW 525i Oxygen Sensor, OEM: 250-25042/25025042Walker Products
2006 BMW 525i Walker Products Oxygen Sensor 250-25042
92.05, Save 39%   NEW ITEM
OEM: 250-25042, Item: 1195825
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 17037Bosch
2006 BMW 525i Bosch Oxygen Sensor 17037
92.85, Save 39%   NEW ITEM
OEM: 17037, Item: 949959
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 15681Bosch
2004-2005 BMW 525i Bosch Oxygen Sensor 15681
93.25, Save 39%   NEW ITEM
OEM: 15681, Item: 949764
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Downstream

BMW 525i Oxygen Sensor, OEM: 11 78 7 514 927/11787514927Bosch
2004-2005 BMW 525i Bosch Oxygen Sensor 11 78 7 514 927
94.45, Save 39%   NEW ITEM
OEM: 11 78 7 514 927, Item: 488045
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Rear

BMW 525i Oxygen Sensor, OEM: 11 78 7 537 984/11787537984Bosch
2006 BMW 525i Bosch Oxygen Sensor 11 78 7 537 984
96.15, Save 39%   NEW ITEM
OEM: 11 78 7 537 984, Item: 488055
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Rear

NGK
2006-2007 BMW 525i NGK Oxygen Sensor 25613
96.75, Save 39%   NEW ITEM
OEM: 25613, Item: 1399231
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Downstream

BMW 525i Oxygen Sensor, OEM: 11 78 7 544 654/11787544654Bosch
2006-2007 BMW 525i Bosch Oxygen Sensor 11 78 7 544 654
96.95, Save 39%  
OEM: 11 78 7 544 654, Item: 488060
  Only 5 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front

BMW 525i Oxygen Sensor, OEM: 11 78 7 558 055/11787558055Bosch
2006-2007 BMW 525i Bosch Oxygen Sensor 11 78 7 558 055
96.95, Save 39%   POPULAR
OEM: 11 78 7 558 055, Item: 488068
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front

BMW 525i Oxygen Sensor, OEM: 250-24677/25024677Walker Products
2004-2005 BMW 525i Walker Products Oxygen Sensor 250-24677
97.65, Save 39%   NEW ITEM
OEM: 250-24677, Item: 1195635
  Only 8 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Downstream

BMW 525i Oxygen Sensor, OEM: 250-24465/25024465Walker Products
2006-2007 BMW 525i Walker Products Oxygen Sensor 250-24465
100.65, Save 39%   NEW ITEM
OEM: 250-24465, Item: 1195534
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Downstream

BMW 525i Oxygen Sensor, OEM: 11 78 7 537 993/11787537993Bosch
2006 BMW 525i Bosch Oxygen Sensor 11 78 7 537 993
102.35, Save 39%   NEW ITEM
OEM: 11 78 7 537 993, Item: 488056
  Only 7 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front

BMW 525i Oxygen Sensor, OEM: 15680Bosch
2004-2005 BMW 525i Bosch Oxygen Sensor 15680
104.95, Save 39%   NEW ITEM
OEM: 15680, Item: 949763
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Downstream

BMW 525i Air- Fuel Ratio Sensor, OEM: 234-5135/2345135Denso
2006 BMW 525i Denso Air- Fuel Ratio Sensor 234-5135
110.35, Save 39%   NEW ITEM
OEM: 234-5135, Item: 1190641
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: ES20173Delphi
2006-2007 BMW 525i Delphi Oxygen Sensor ES20173
112.15, Save 39%   NEW ITEM
OEM: ES20173, Item: 997865
  Only 8 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Rear

BMW 525i Air- Fuel Ratio Sensor, OEM: 234-5139/2345139Denso
2006-2007 BMW 525i Denso Air- Fuel Ratio Sensor 234-5139
113.55, Save 39%   NEW ITEM
OEM: 234-5139, Item: 1190645
  Only 1 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 17215Bosch
2004-2005 BMW 525i Bosch Oxygen Sensor 17215
116.65, Save 39%   NEW ITEM
OEM: 17215, Item: 949992
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 17216Bosch
2004-2005 BMW 525i Bosch Oxygen Sensor 17216
116.65, Save 39%   NEW ITEM
OEM: 17216, Item: 949993
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 17098Bosch
2006-2007 BMW 525i Bosch Oxygen Sensor 17098
118.75, Save 39%   NEW ITEM
OEM: 17098, Item: 341494
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front

Bosch
2006 BMW 525i Bosch Oxygen Sensor 17039
119.65, Save 39%   NEW ITEM
OEM: 17039, Item: 341429
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front

BMW 525i Oxygen Sensor, OEM: 250-25016/25025016Walker Products
2004-2005 BMW 525i Walker Products Oxygen Sensor 250-25016
122.05, Save 39%   NEW ITEM
OEM: 250-25016, Item: 1195802
  Only 2 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Air- Fuel Ratio Sensor, OEM: 234-5138/2345138Denso
2006-2007 BMW 525i Denso Air- Fuel Ratio Sensor 234-5138
124.35, Save 39%   NEW ITEM
OEM: 234-5138, Item: 1190644
  Only 7 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 11 78 7 558 073/11787558073Bosch
2006-2007 BMW 525i Bosch Oxygen Sensor 11 78 7 558 073
124.95, Save 39%   POPULAR
OEM: 11 78 7 558 073, Item: 537373
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Rear

BMW 525i Oxygen Sensor, OEM: 17099Bosch
2006-2007 BMW 525i Bosch Oxygen Sensor 17099
126.25, Save 39%   NEW ITEM
OEM: 17099, Item: 949967
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 250-25046/25025046Walker Products
2006-2007 BMW 525i Walker Products Oxygen Sensor 250-25046
126.85, Save 39%   NEW ITEM
OEM: 250-25046, Item: 1195829
  Only 6 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Air- Fuel Ratio Sensor, OEM: 234-5137/2345137Denso
2004-2005 BMW 525i Denso Air- Fuel Ratio Sensor 234-5137
127.05, Save 39%   NEW ITEM
OEM: 234-5137, Item: 1190643
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 17215Bosch
2004-2005 BMW 525i Bosch Oxygen Sensor 17215
127.75, Save 39%   NEW ITEM
OEM: 17215, Item: 67973
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front Right Upper

BMW 525i Oxygen Sensor, OEM: 250-25018/25025018Walker Products
2006-2007 BMW 525i Walker Products Oxygen Sensor 250-25018
128.65, Save 39%   NEW ITEM
OEM: 250-25018, Item: 1195804
  Only 8 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Upstream

BMW 525i Oxygen Sensor, OEM: 11 78 7 523 434/11787523434Bosch
2004-2005 BMW 525i Bosch Oxygen Sensor 11 78 7 523 434
131.85, Save 39%   NEW ITEM
OEM: 11 78 7 523 434, Item: 488049
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front

BMW 525i Oxygen Sensor, OEM: 11 78 7 523 435/11787523435Bosch
2004-2005 BMW 525i Bosch Oxygen Sensor 11 78 7 523 435
131.95, Save 39%   NEW ITEM
OEM: 11 78 7 523 435, Item: 488050
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Rear

BMW 525i Oxygen Sensor, OEM: ES11081Delphi
2006-2007 BMW 525i Delphi Oxygen Sensor ES11081
133.55, Save 39%   NEW ITEM
OEM: ES11081, Item: 997698
  Only 5 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front

Bosch
2004-2005 BMW 525i Bosch Oxygen Sensor 17216
138.55, Save 39%   NEW ITEM
OEM: 17216, Item: 67974
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front Lower

BMW 525i Oxygen Sensor, OEM: 0258003068Bosch
1989-1991 BMW 525i Bosch Oxygen Sensor 0258003068
141.35, Save 39%   NEW ITEM
OEM: 0258003068, Item: 52070
  Only 9 left In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

NTK
2006-2007 BMW 525i NTK Oxygen Sensor 11 78 7 558 055
158.45, Save 39%   NEW ITEM
OEM: 11 78 7 558 055, Item: 558385
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front

BMW 525i Oxygen Sensor, OEM: 17099Bosch
2006-2007 BMW 525i Bosch Oxygen Sensor 17099
180.15, Save 39%   NEW ITEM
OEM: 17099, Item: 340470
  In Stock, Usually ships within 1 business day
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Front

BMW 525i Oxygen Sensor, OEM: 234-4892/2344892Denso
2006-2007 BMW 525i Denso Oxygen Sensor 234-4892
98.05, Save 39%   NO STOCK
OEM: 234-4892, Item: 587475
  Restock date not known
Select year, make, model above to verify this part fits your vehicle

Vehicle Install Locations: Downstream