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2003 Chevrolet Impala Oxygen Sensors

85 items

Shop best-selling oxygen sensors for Ford, Chevy, Honda, Nissan, Toyota, and more. Direct-fit O2 sensors with fast response, improved MPG, and reliable emissions performance.

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Upstream or Downstream O2 Oxygen Sensor | 1-Pc Direct-Fit | Aisin OXSGM-00266Upstream or Downstream O2 Oxygen Sensor | 1-Pc Direct-Fit | Aisin OXSGM-00266
AisinPart # OXSGM-00266
Upstream or Downstream O2 Oxygen Sensor | 1-Pc Direct-Fit | Aisin OXSGM-00266
4.5680 Reviews
$43.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2015 - 2017 Chevrolet Equinox, 2015 - 2017 GMC Terrain, 2014 - 2014 Chevrolet Impala, 2013 - 2016 Buick Verano, 2012 - 2017 Buick Verano, 2011 - 2017 Buick Regal, 2011 - 2015 Chevrolet Silverado 2500 HD, 2011 - 2015 Chevrolet Silverado 3500 HD, 2011 - 2015 GMC Sierra 2500 HD, 2011 - 2015 GMC Sierra 3500 HD, 2011 - 2013 Buick Regal, 2010 - 2016 Buick LaCrosse, 2009 - 2018 GMC Savana 4500, 2009 - 2016 Chevrolet Express 4500, 2009 - 2014 Chevrolet Malibu, 2009 - 2009 Pontiac G6, 2009 - 2009 Saturn Aura, 2008 - 2015 GMC Savana 3500, 2008 - 2013 Chevrolet Corvette, 2008 - 2013 Chevrolet Express 3500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity1
Installation PositionUpstream or Downstream
Item LocatedUnited States
ConditionNew
item #1018EGG7
Show less
Upstream or Downstream O2 Oxygen Sensor | 1-Pc Direct-Fit | Aisin OXSAZ-00218
AisinPart # OXSAZ-00218
Upstream or Downstream O2 Oxygen Sensor | 1-Pc Direct-Fit | Aisin OXSAZ-00218
4.5680 Reviews
$43.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2014 - 2015 Cadillac CTS, 2013 - 2015 Chevrolet Spark, 2012 - 2013 Chevrolet Caprice, 2012 - 2012 Chevrolet Suburban 2500, 2011 - 2013 Chevrolet Caprice, 2011 - 2013 Chevrolet Suburban 1500, 2010 - 2014 Cadillac CTS, 2010 - 2010 Chevrolet Silverado 1500, 2009 - 2015 Cadillac CTS, 2009 - 2013 Cadillac Escalade, 2009 - 2011 Buick Lucerne, 2009 - 2009 Pontiac G8, 2009 - 2009 Saturn Aura, 2008 - 2014 Cadillac Escalade, 2008 - 2014 Cadillac Escalade ESV, 2008 - 2014 Chevrolet Suburban 1500, 2008 - 2014 Chevrolet Tahoe, 2008 - 2014 GMC Yukon, 2008 - 2014 GMC Yukon XL 1500, 2008 - 2013 Cadillac Escalade EXT
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity1
Installation PositionUpstream or Downstream
Item LocatedUnited States
ConditionNew
item #1018ECZ8
Show less
Upstream or Downstream O2 Oxygen Sensor | 2-Pc Direct-Fit | Aisin OXSAZ-00289
AisinPart # OXSAZ-00289
Upstream or Downstream O2 Oxygen Sensor | 2-Pc Direct-Fit | Aisin OXSAZ-00289
4.5680 Reviews
$97.99
Low stock: Only 5 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2002 - 2002 Cadillac Escalade, 2002 - 2002 Chevrolet Avalanche 1500, 2001 - 2003 Isuzu Rodeo Sport, 2000 - 2002 Chevrolet Silverado 1500, 2000 - 2002 Chevrolet Suburban 1500, 2000 - 2002 Chevrolet Tahoe, 2000 - 2002 GMC Sierra 1500, 2000 - 2002 GMC Sierra 1500, 2000 - 2002 GMC Yukon, 2000 - 2002 GMC Yukon XL 1500, 2000 - 2000 Chevrolet Silverado 2500, 2000 - 2000 GMC Sierra 2500, 1999 - 2002 GMC Sierra 1500, 1999 - 2001 Chevrolet Silverado 1500, 1999 - 2001 Isuzu VehiCROSS, 1999 - 2000 Cadillac Escalade, 1999 - 1999 Chevrolet Silverado 1500, 1999 - 1999 Chevrolet Silverado 1500, 1999 - 1999 Chevrolet Silverado 2500, 1999 - 1999 GMC Sierra 1500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity2
Installation PositionUpstream or Downstream
Item LocatedUnited States
ConditionNew
item #1018EGTK
Show less
Upstream or Downstream O2 Oxygen Sensor | 2-Pc Direct-Fit | Aisin OXSAZ-00229
AisinPart # OXSAZ-00229
Upstream or Downstream O2 Oxygen Sensor | 2-Pc Direct-Fit | Aisin OXSAZ-00229
4.5680 Reviews
$97.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2004 - 2004 Buick Rainier, 2004 - 2004 GMC Envoy XUV, 2004 - 2004 Isuzu Axiom, 2004 - 2004 Isuzu Rodeo, 2003 - 2004 Chevrolet SSR, 2003 - 2004 Chevrolet Trailblazer EXT, 2003 - 2004 GMC Envoy XL, 2003 - 2004 Isuzu Ascender, 2002 - 2005 Buick Rendezvous, 2002 - 2005 Chevrolet Blazer, 2002 - 2004 Chevrolet S10, 2002 - 2004 GMC Sonoma, 2002 - 2004 Isuzu Rodeo, 2002 - 2003 Isuzu Rodeo Sport, 2002 - 2002 Cadillac Escalade, 2002 - 2002 Chevrolet Avalanche 1500, 2002 - 2002 Chevrolet Tahoe, 2002 - 2002 Honda Passport, 2001 - 2005 Buick Century, 2001 - 2005 Chevrolet Impala
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity2
Installation PositionUpstream or Downstream
Item LocatedUnited States
ConditionNew
item #1018EGPX
Show less
Upstream or Downstream O2 Oxygen Sensor | 1-Pc Direct-Fit | Aisin OXSAZ-00227
AisinPart # OXSAZ-00227
Upstream or Downstream O2 Oxygen Sensor | 1-Pc Direct-Fit | Aisin OXSAZ-00227
4.5680 Reviews
$43.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2007 - 2007 Pontiac G6, 2007 - 2007 Saturn Aura, 2006 - 2008 Buick Lucerne, 2006 - 2007 Buick Rendezvous, 2006 - 2007 Buick Terraza, 2006 - 2007 Chevrolet Corvette, 2006 - 2007 Chevrolet Impala, 2006 - 2007 Chevrolet Monte Carlo, 2006 - 2007 Chevrolet Uplander, 2006 - 2007 Pontiac Torrent, 2006 - 2007 Saturn Relay, 2006 - 2006 Chevrolet Monte Carlo, 2006 - 2006 Pontiac G6, 2006 - 2006 Pontiac Montana, 2005 - 2007 Buick Allure, 2005 - 2007 Buick LaCrosse, 2005 - 2007 Chevrolet Corvette, 2005 - 2007 Chevrolet Equinox, 2005 - 2007 Pontiac Grand Prix, 2005 - 2006 Buick Terraza
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity1
Installation PositionUpstream or Downstream
Item LocatedUnited States
ConditionNew
item #1018EH4K
Show less
Upstream or Downstream O2 Oxygen Sensor | 1-Pc Direct-Fit | Aisin OXSAZ-00228
AisinPart # OXSAZ-00228
Upstream or Downstream O2 Oxygen Sensor | 1-Pc Direct-Fit | Aisin OXSAZ-00228
4.5680 Reviews
$43.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2004 - 2004 Buick Rainier, 2004 - 2004 GMC Envoy XUV, 2004 - 2004 Isuzu Axiom, 2004 - 2004 Isuzu Rodeo, 2003 - 2004 Chevrolet SSR, 2003 - 2004 Chevrolet Trailblazer EXT, 2003 - 2004 GMC Envoy XL, 2003 - 2004 GMC Sonoma, 2003 - 2004 Isuzu Ascender, 2002 - 2005 Buick Rendezvous, 2002 - 2005 Chevrolet Blazer, 2002 - 2004 Chevrolet S10, 2002 - 2004 Isuzu Rodeo, 2002 - 2003 Isuzu Rodeo Sport, 2002 - 2002 Cadillac Escalade, 2002 - 2002 Chevrolet Avalanche 1500, 2002 - 2002 GMC Sonoma, 2002 - 2002 Honda Passport, 2001 - 2005 Buick Century, 2001 - 2005 Chevrolet Impala
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity1
Installation PositionUpstream or Downstream
Item LocatedUnited States
ConditionNew
item #1018EGYG
Show less
Downstream O2 Oxygen Sensor | 1-Pc Direct-Fit | Aisin OXSAZ-00183
AisinPart # OXSAZ-00183
Downstream O2 Oxygen Sensor | 1-Pc Direct-Fit | Aisin OXSAZ-00183
4.5680 Reviews
$43.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2002 - 2004 Buick Rendezvous, 2001 - 2004 Pontiac Aztek, 2000 - 2004 Chevrolet Impala, 2000 - 2004 Chevrolet Monte Carlo, 2000 - 2003 Chevrolet Impala, 2000 - 2002 Chevrolet Camaro, 2000 - 2002 Pontiac Firebird, 1999 - 2004 Pontiac Montana, 1999 - 1999 Oldsmobile Intrigue, 1998 - 2003 Chevrolet Monte Carlo, 1998 - 2002 Chevrolet Camaro, 1998 - 2002 Pontiac Firebird, 1998 - 1999 Chevrolet Camaro, 1998 - 1999 Chevrolet Lumina, 1998 - 1999 Oldsmobile Aurora, 1998 - 1999 Oldsmobile Intrigue, 1998 - 1999 Pontiac Firebird, 1997 - 2004 Chevrolet Venture, 1997 - 2003 Chevrolet S10, 1997 - 2003 Pontiac Grand Prix
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity1
Installation PositionDownstream
Item LocatedUnited States
ConditionNew
item #1018EH1H
Show less
Spectra Premium OS5047 Oxygen Sensor
Spectra PremiumPart # OS5047
Spectra Premium OS5047 Oxygen Sensor
4.45 Reviews
$30.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2005-2005 GMC Jimmy, 2005-2005 Pontiac Montana, 2004-2005 Buick Rendezvous, 2004-2005 Chevrolet Blazer, 2004-2004 Chevrolet S10, 2004-2004 GMC Jimmy, 2004-2004 GMC Sonoma, 2004-2004 Isuzu Axiom, 2004-2004 Isuzu Rodeo, 2003-2003 Cadillac DeVille, 2003-2003 Cadillac Seville, 2003-2003 Chevrolet Blazer, 2003-2003 Chevrolet S10, 2003-2003 GMC Jimmy, 2003-2003 GMC Sonoma, 2003-2003 Isuzu Rodeo, 2003-2003 Oldsmobile Aurora, 2002-2003 Buick Rendezvous, 2002-2003 Isuzu Rodeo Sport, 2002-2002 Cadillac DeVille
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity1
Item LocatedUnited States
Part interchange
OS5047, 751900, 753269, 753030, 754057, SG1614T, SG1415, SG1366, 
...View more
item #1000YEDE
Show less
Oxygen Sensor - Bosch 13444
BoschPart # 13444
Oxygen Sensor - Bosch 13444
46 Reviews
$49.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2004-2004 Buick Rendezvous, 2004-2004 Chevrolet Impala, 2004-2004 Chevrolet Monte Carlo, 2002-2003 Buick Rendezvous, 2002-2002 Chevrolet Camaro, 2002-2002 Chevrolet Camaro, 2002-2002 Chevrolet Camaro, 2002-2002 Pontiac Firebird, 2002-2002 Pontiac Firebird, 2002-2002 Pontiac Firebird, 2001-2004 Pontiac Aztek, 2001-2001 Chevrolet Camaro, 2000-2003 Chevrolet Impala, 2000-2001 Pontiac Firebird, 2000-2000 Chevrolet Camaro, 2000-2000 Chevrolet Camaro, 1999-2004 Pontiac Montana, 1999-1999 Chevrolet Camaro, 1999-1999 Chevrolet Camaro, 1998-2000 Chevrolet Camaro
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity1
Item LocatedUnited States
Part interchange
13444, 19178747, 19178922, 19178924, 19355308, 19178928, 8191789240
item #1002CQUG
Show less
Denso 234-4012 Oxygen Sensor
DensoPart # 234-4012
Denso 234-4012 Oxygen Sensor
4.29 Reviews
$38.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2003-2003 Isuzu Rodeo, 2002-2002 Cadillac Escalade, 2002-2002 Chevrolet Avalanche 1500, 2002-2002 GMC Sierra 1500, 2002-2002 Isuzu Rodeo, 2001-2003 Isuzu Rodeo Sport, 2001-2002 GMC Sierra 1500, 2001-2002 GMC Yukon, 2001-2002 GMC Yukon, 2001-2002 GMC Yukon XL 1500, 2001-2001 Chevrolet Blazer, 2001-2001 GMC Sonoma, 2001-2001 Isuzu Rodeo, 2001-2001 Isuzu VehiCROSS, 2000-2002 Chevrolet Suburban 1500, 2000-2002 Chevrolet Tahoe, 2000-2002 GMC Sierra 1500, 2000-2001 Chevrolet S10, 2000-2001 GMC Sierra 1500, 2000-2000 Chevrolet Blazer
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity1
Item LocatedUnited States
Part interchange
234-4012, 19178918, 19178930, 24626, 21006, 8253252660, 19178937, 96335927, 
...View more
item #1003S56U
Show less
Denso 234-4018 Oxygen Sensor
DensoPart # 234-4018
Denso 234-4018 Oxygen Sensor
4.29 Reviews
$42.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2002-2002 Cadillac Escalade, 2002-2002 Cadillac Escalade, 2002-2002 Cadillac Escalade EXT, 2002-2002 Chevrolet Avalanche 1500, 2002-2002 Chevrolet Silverado 1500, 2001-2003 Chevrolet Impala, 2001-2003 Chevrolet Monte Carlo, 2001-2003 Pontiac Grand Prix, 2001-2002 Chevrolet Camaro, 2001-2002 GMC Sierra 1500, 2001-2002 GMC Yukon, 2001-2002 GMC Yukon XL 1500, 2001-2002 Pontiac Firebird, 2001-2001 Chevrolet Silverado 1500 HD, 2001-2001 Chevrolet Silverado 2500 HD, 2001-2001 Chevrolet Silverado 3500, 2001-2001 Chevrolet Suburban 2500, 2001-2001 GMC Sierra 1500, 2001-2001 GMC Sierra 1500 HD, 2001-2001 GMC Sierra 2500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity1
Item LocatedUnited States
Part interchange
234-4018, 21539, AFS106, AFS109, AFS135, AFS95, AFS125, OS839, 
...View more
item #1003S2DE
Show less
Spectra Premium OS5046 Oxygen Sensor
Spectra PremiumPart # OS5046
Spectra Premium OS5046 Oxygen Sensor
4.45 Reviews
$33.99
Low stock: Only 1 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2004-2004 Buick Rendezvous, 2004-2004 Chevrolet Impala, 2004-2004 Chevrolet Monte Carlo, 2002-2003 Buick Rendezvous, 2001-2005 Chevrolet LUV, 2001-2004 Pontiac Aztek, 2000-2003 Chevrolet Impala, 2000-2002 Chevrolet Camaro, 1999-2004 Pontiac Montana, 1999-1999 Chevrolet Camaro, 1998-2002 Chevrolet Camaro, 1998-2002 Chevrolet Camaro, 1998-2002 Pontiac Firebird, 1998-2002 Pontiac Firebird, 1998-2002 Pontiac Firebird, 1998-1999 Oldsmobile Aurora, 1998-1999 Oldsmobile Intrigue, 1998-1998 Chevrolet Camaro, 1997-2004 Chevrolet Venture, 1997-2003 Chevrolet S10
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity1
Item LocatedUnited States
Part interchange
OS5046, 751909, SG277T, SG277, 2131681, 213938, AFS97, AFS141, 
...View more
item #1000YANU
Show less
Spectra Premium OS5210 Oxygen Sensor
Spectra PremiumPart # OS5210
Spectra Premium OS5210 Oxygen Sensor
4.45 Reviews
$32.99
Low stock: Only 4 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2007-2007 Buick Rendezvous, 2007-2007 Pontiac G6, 2007-2007 Saturn Aura, 2006-2007 Buick Lucerne, 2006-2007 Chevrolet Malibu, 2006-2007 Pontiac G6, 2006-2007 Pontiac Torrent, 2006-2006 Buick Rendezvous, 2005-2007 Buick Allure, 2005-2007 Buick LaCrosse, 2005-2007 Buick Terraza, 2005-2007 Chevrolet Corvette, 2005-2007 Chevrolet Equinox, 2005-2007 Chevrolet Impala, 2005-2007 Chevrolet Monte Carlo, 2005-2007 Chevrolet Uplander, 2005-2007 Pontiac Montana, 2005-2007 Saturn Relay, 2005-2005 Buick Century, 2005-2005 Buick Rainier
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity1
Item LocatedUnited States
Part interchange
OS5210, 213818, 213816, 213800, 2131552, 21573, 8192098080, 8125731680, 
...View more
item #1000YKKC
Show less
Spectra Premium OS5044 Oxygen Sensor
Spectra PremiumPart # OS5044
Spectra Premium OS5044 Oxygen Sensor
4.45 Reviews
$29.99
Low stock: Only 1 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2003-2003 Chevrolet Corvette, 2002-2003 Isuzu Rodeo Sport, 2001-2003 Isuzu Rodeo, 2001-2002 Chevrolet G30, 2001-2001 Chevrolet Blazer, 2001-2001 Chevrolet C1500, 2001-2001 GMC Jimmy, 2001-2001 Isuzu Rodeo Sport, 2001-2001 Oldsmobile Bravada, 2000-2001 Chevrolet S10, 2000-2001 GMC Sonoma, 2000-2000 Chevrolet C1500, 2000-2000 GMC Jimmy, 2000-2000 GMC Yukon, 2000-2000 Oldsmobile Bravada, 1999-2002 Chevrolet Corvette, 1999-2002 Chevrolet Express 3500, 1999-2002 Daewoo Lanos, 1999-2002 Daewoo Leganza, 1999-2002 GMC Savana 1500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity1
Item LocatedUnited States
Part interchange
OS5044, 751701, 753251, SG278T, SG239T, SG236T, SG278, SG239, 
...View more
item #1000YDE5
Show less
Denso 234-4212 Oxygen Sensor
DensoPart # 234-4212
Denso 234-4212 Oxygen Sensor
4.29 Reviews
$58.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2015-2015 Buick LaCrosse, 2014-2017 Buick Regal, 2014-2015 Chevrolet Camaro, 2014-2015 Chevrolet SS, 2014-2014 Chevrolet Impala, 2014-2014 Chevrolet Suburban 1500, 2013-2014 Chevrolet Malibu, 2013-2014 Ford E-350 Super Duty, 2013-2013 Chevrolet Suburban 2500, 2012-2017 Buick Verano, 2012-2015 Chevrolet Caprice, 2012-2013 Chevrolet Orlando, 2011-2014 Chevrolet Silverado 3500 HD, 2011-2014 Chevrolet Silverado 3500 HD, 2011-2014 GMC Sierra 3500 HD, 2011-2014 GMC Sierra 3500 HD, 2011-2013 Buick Regal, 2011-2013 Chevrolet Suburban 1500, 2011-2012 Chevrolet Silverado 2500 HD, 2011-2012 Chevrolet Silverado 2500 HD
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity1
Item LocatedUnited States
Part interchange
234-4212, 13383, 13598, 13687, 15718, 15155, 15114, 15133, 
...View more
item #1004YY59
Show less
Denso 234-4000 Oxygen Sensor
DensoPart # 234-4000
Denso 234-4000 Oxygen Sensor
4.29 Reviews
$71.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2004-2004 Buick Rendezvous, 2004-2004 Chevrolet Impala, 2004-2004 Chevrolet Monte Carlo, 2003-2003 Buick LeSabre, 2003-2003 Chevrolet Corvette, 2003-2003 Isuzu Rodeo Sport, 2002-2004 Oldsmobile Alero, 2002-2004 Pontiac Grand Am, 2002-2003 Buick Regal, 2002-2003 Buick Rendezvous, 2002-2003 Chevrolet S10, 2002-2003 GMC Sonoma, 2002-2002 Cadillac Escalade, 2002-2002 Cadillac Escalade, 2002-2002 Cadillac Escalade EXT, 2002-2002 Chevrolet Avalanche 1500, 2002-2002 Chevrolet Camaro, 2002-2002 Chevrolet Camaro, 2002-2002 Chevrolet Camaro, 2002-2002 Chevrolet Cavalier
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity1
Item LocatedUnited States
Part interchange
234-4000, 13470, 15503, 15702, 15058, 13111, 13027, 13326, 
...View more
item #1003S484
Show less
Bosch 13474 Oxygen Sensor
BoschPart # 13474
Bosch 13474 Oxygen Sensor
46 Reviews
$53.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2002-2002 Cadillac Escalade, 2002-2002 Cadillac Escalade, 2002-2002 Cadillac Escalade EXT, 2002-2002 Chevrolet Avalanche 1500, 2002-2002 Chevrolet Silverado 1500, 2002-2002 Chevrolet Silverado 1500, 2002-2002 Chevrolet Tahoe, 2002-2002 GMC Sierra 1500, 2002-2002 GMC Yukon, 2002-2002 GMC Yukon, 2002-2002 GMC Yukon XL 1500, 2002-2002 GMC Yukon XL 1500, 2002-2002 GMC Yukon XL 1500, 2001-2003 Chevrolet Impala, 2001-2003 Chevrolet Monte Carlo, 2001-2003 Pontiac Grand Prix, 2001-2002 Chevrolet Camaro, 2001-2002 Chevrolet Suburban 1500, 2001-2002 GMC Sierra 1500, 2001-2002 GMC Sierra 1500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity1
Item LocatedUnited States
Part interchange
13474, 19178116, 19178935, 19178958, 25163080, 19178945
item #1002CU5K
Show less
Walker Products 250-24836 Oxygen Sensor
Walker ProductsPart # 250-24836
Walker Products 250-24836 Oxygen Sensor
56 Reviews
$51.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2008-2009 Chevrolet Chevy, 2007-2007 Buick Rendezvous, 2007-2007 Chevrolet Corvette, 2007-2007 Chevrolet Monte Carlo, 2007-2007 Chevrolet Uplander, 2007-2007 Pontiac G6, 2007-2007 Pontiac Torrent, 2007-2007 Saturn Aura, 2007-2007 Saturn Relay, 2006-2008 Buick Lucerne, 2006-2007 Chevrolet Impala, 2006-2007 Chevrolet Impala, 2006-2007 Chevrolet Impala, 2006-2007 Chevrolet Monte Carlo, 2006-2007 Chevrolet Monte Carlo, 2006-2006 Buick Rendezvous, 2006-2006 Chevrolet Corvette, 2006-2006 Chevrolet Monte Carlo, 2006-2006 Pontiac G6, 2006-2006 Pontiac G6
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity1
Item LocatedUnited States
Part interchange
250-24836
item #1001P8K3
Show less
Walker Products 250-24012 Oxygen Sensor
Walker ProductsPart # 250-24012
Walker Products 250-24012 Oxygen Sensor
56 Reviews
$65.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2006-2008 Chevrolet Corsa, 2003-2003 Isuzu Rodeo, 2002-2003 Isuzu Rodeo Sport, 2002-2002 Cadillac Escalade, 2002-2002 Chevrolet Avalanche 1500, 2002-2002 Chevrolet Express 2500, 2002-2002 Chevrolet Silverado 1500, 2002-2002 Chevrolet Silverado 1500, 2002-2002 Chevrolet Suburban 1500, 2002-2002 Isuzu Rodeo, 2001-2002 Chevrolet Express 1500, 2001-2002 Chevrolet Silverado 3500, 2001-2002 Chevrolet Tahoe, 2001-2002 GMC Sierra 1500, 2001-2002 GMC Sierra 1500, 2001-2002 GMC Yukon XL 1500, 2001-2001 Chevrolet Silverado 1500, 2001-2001 Chevrolet Suburban 1500, 2001-2001 GMC Jimmy, 2001-2001 Isuzu Rodeo
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity1
Item LocatedUnited States
Part interchange
250-24012
item #1001PCCQ
Show less
Denso 234-4650 Oxygen Sensor
DensoPart # 234-4650
Denso 234-4650 Oxygen Sensor
4.29 Reviews
$50.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2004-2004 Buick Rainier, 2004-2004 Buick Rendezvous, 2004-2004 GMC Envoy XUV, 2004-2004 Isuzu Axiom, 2004-2004 Isuzu Rodeo, 2003-2004 Chevrolet SSR, 2003-2004 Chevrolet Trailblazer EXT, 2003-2004 GMC Envoy XL, 2003-2004 Isuzu Ascender, 2003-2003 Isuzu Rodeo, 2003-2003 Isuzu Rodeo Sport, 2002-2003 Buick Rendezvous, 2002-2002 Cadillac Escalade, 2002-2002 Chevrolet Avalanche 1500, 2002-2002 Chevrolet Blazer, 2002-2002 Chevrolet S10, 2002-2002 Chevrolet Silverado 1500, 2002-2002 Chevrolet Silverado 1500, 2002-2002 Chevrolet Tahoe, 2002-2002 Chevrolet Tahoe
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: 2003 Chevrolet Impala
Quantity1
Item LocatedUnited States
Part interchange
234-4650, 8972873520, 21047, 21516, 8125671270, 213-819, 213-817, 213-802, 
...View more
item #1005HQQS
Show less
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Your vehicle’s oxygen sensor (also known as O2 sensors) plays a critical role in engine performance, fuel efficiency, and emissions control. By continuously measuring the amount of unburned oxygen in the exhaust, the oxygen sensor sends real-time feedback to your engine control unit (ECU), ensuring the perfect air-fuel mixture.

When an oxygen sensor fails, your engine essentially runs “blind,” leading to poor fuel economy, rough idling, reduced performance, and a persistent check engine light. A timely front oxygen sensor replacement or replacement of a faulty upstream oxygen sensor or downstream oxygen sensor can restore optimal driving conditions and help you pass emissions tests with ease.

 

Why Choose A-Premium Oxygen Sensors?

Unlike universal parts that require cutting and splicing wires, A-Premium O2 sensors are engineered for direct plug-and-play installation.

  • OEM-style connectors for seamless fit
  • Pre-coated anti-seize threads for easy installation
  • Laser-welded body construction for durability
  • High-temperature sintered coating for long service life
  • Premium insulation sheathing and impact-resistant design
  • Slotted guard tube for sensor protection
  • High heat dissipation structure for extreme environments

 

Advanced Performance & Precision

A-Premium oxygen sensor technology ensures fast, accurate, and stable performance:

Performance & Response

  • ≤200ms fast response time
  • High-efficiency oxygen sensing
  • Zirconia sensing element
  • Real-time signal feedback

Precision & Control

  • Real-time exhaust tracking
  • Accurate combustion control
  • Stable signal output

Efficiency & Engine Benefits

  • Improved fuel efficiency
  • Enhanced engine performance
  • Reduced harmful emissions
  • Extended engine lifespan

Environmental Adaptability

  • Operating range: -40°F to 266°F
  • Air-tight sealing design
  • Stable performance under harsh conditions

 

3 Symptoms of a Bad Oxygen Sensor

Because O2 sensors operate in extreme heat and carbon-rich environments, they naturally degrade over time.

  • Check Engine Light (CEL): Common codes include P0135, P0171, and P0420. These often point to issues with an upstream oxygen sensor or oxygen sensor bank 1.
  • Poor Fuel Economy: A faulty oxygen sensor may cause a rich fuel mixture, dramatically lowering MPG. 20-40% worse fuel economy overnight.
  • Rough Idle & Stalling: Incorrect readings from your downstream oxygen sensor or upstream sensor can disrupt engine stability.
  • Rotten egg smell: Catalytic converter overheating from bad fuel mixture

 

Understanding O2 Sensor Positions: Upstream vs Downstream

Modern vehicles may have multiple oxygen sensor units, making it essential to identify the correct one:

  • Oxygen Sensor Bank 1vs Bank 2 
    • oxygen sensor bank 1 refers to the side of the engine with Cylinder #1
    • Bank 2 is the opposite side
  • Upstream Oxygen Sensor(Sensor 1) 
    • Located before the catalytic converter
    • Controls air-fuel ratio
    • Most common need for front oxygen sensor replacement
  • Downstream Oxygen Sensor(Sensor 2) 
    • Located after the catalytic converter
    • Monitors emissions system efficiency

Tip: Always match your diagnostic code to the correct upstream oxygen sensor or downstream oxygen sensor before purchasing.

 

Complete Your Emissions Repair

Replacing your oxygen sensor is often part of a larger emissions system fix. Consider inspecting these related components:

 

Shop by Popular Makes

To help you quickly find the right oxygen sensor, explore our most popular vehicle-specific options:

Browse our most searched and best-selling vehicle-specific oxygen sensor options to quickly locate the right fit for your car.

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P0139 Code: Bank 1 Sensor 2 Slow Response & Fixes

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