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Chevrolet S10 Blazer Oxygen Sensors
43 itemsShop 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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A-Premium®Part # OS123
Upstream & Downstream O2 Oxygen Sensor | 2-Pc Direct-Fit | A-Premium OS123
4.5665 Reviews
$44.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2002 - 2002 Cadillac Escalade, 2002 - 2002 Chevrolet Avalanche 1500, 2002 - 2002 Chevrolet Silverado 1500, 2001 - 2003 Isuzu Rodeo Sport, 2000 - 2002 Chevrolet Silverado 1500, 2000 - 2002 Chevrolet Suburban 1500, 2000 - 2002 Chevrolet Tahoe, 2000 - 2002 Chevrolet Tahoe, 2000 - 2002 GMC Sierra 1500, 2000 - 2002 GMC Sierra 1500, 2000 - 2002 GMC Yukon, 2000 - 2002 GMC Yukon, 2000 - 2002 GMC Yukon XL 1500, 2000 - 2001 Chevrolet Silverado 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
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Vehicle: Chevrolet S10 Blazer
Quantity2
Installation PositionUpstream & Downstream
Item LocatedUnited States
ConditionNew
item #1004A06S
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A-Premium®Part # OS030
O2 Oxygen Sensor | 1-Pc Direct-Fit | Heated | A-Premium OS030
4.5665 Reviews
$30.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1995 - 1995 Chevrolet C2500, 1994 - 1995 GMC C2500, 1994 - 1994 Chevrolet Blazer, 1994 - 1994 Chevrolet C1500, 1994 - 1994 Chevrolet C1500, 1994 - 1994 Chevrolet C1500, 1994 - 1994 Chevrolet C1500 Suburban, 1994 - 1994 Chevrolet C2500, 1994 - 1994 Chevrolet C2500, 1994 - 1994 Chevrolet C2500, 1994 - 1994 Chevrolet C2500 Suburban, 1994 - 1994 Chevrolet K1500, 1994 - 1994 Chevrolet K1500, 1994 - 1994 Chevrolet K1500, 1994 - 1994 Chevrolet K1500 Suburban, 1994 - 1994 Chevrolet K2500, 1994 - 1994 Chevrolet K2500, 1994 - 1994 Chevrolet K2500, 1994 - 1994 Chevrolet K2500 Suburban, 1994 - 1994 GMC C1500
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Vehicle: Chevrolet S10 Blazer
Installation PositionCheck the fitment chart
Item LocatedUnited States
ConditionNew
item #100300WL
Note
For Regal & Lumina & Cutlass Supreme & Pontiac fits with California Emissions, not fit with Federal Emissions.
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A-Premium®Part # APOS1906
Upstream & Downstream O2 Oxygen Sensor | 4-Pc Direct-Fit | Heated | A-Premium APOS1906
4.5665 Reviews
$89.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1999 - 2001 Chevrolet S10, 1999 - 2001 Isuzu Vehicross, 1998 - 2001 GMC Sonoma, 1998 - 2000 Isuzu Amigo, 1998 - 1999 Acura SLX, 1998 - 1999 Isuzu Trooper, 1997 - 2000 Isuzu Hombre, 1996 - 2001 Chevrolet Blazer, 1996 - 2000 Honda Passport, 1996 - 2000 Isuzu Rodeo, 1996 - 1997 Acura SLX, 1996 - 1997 Isuzu Trooper, 1996 - 1996 Buick Commercial Chassis, 1996 - 1996 Buick Roadmaster, 1996 - 1996 Cadillac Commercial Chassis, 1996 - 1996 Cadillac Fleetwood, 1996 - 1996 Chevrolet Caprice, 1996 - 1996 Chevrolet Caprice, 1996 - 1996 Chevrolet Corvette, 1996 - 1996 Chevrolet Impala
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Chevrolet S10 Blazer
Quantity4
Installation PositionUpstream & Downstream
Item LocatedUnited States
ConditionNew
item #1004AA0U
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A-Premium®Part # OS128
O2 Oxygen Sensor | 1-Pc Direct-Fit | Heated | A-Premium OS128
4.5665 Reviews
$26.99
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 Chevrolet Silverado 1500, 2002 - 2002 GMC Sierra 1500, 2002 - 2002 GMC Sonoma, 2002 - 2002 Honda Passport
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Chevrolet S10 Blazer
Quantity1
Installation PositionCheck the fitment chart
Item LocatedUnited States
ConditionNew
item #10030UP2
Show less
A-Premium®Part # OS168
O2 Oxygen Sensor | 1-Pc Direct-Fit | Heated | A-Premium OS168
4.5665 Reviews
$22.99
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 Silverado 1500, 2000 - 2002 Chevrolet Suburban 1500, 2000 - 2002 Chevrolet Tahoe, 2000 - 2002 Chevrolet Tahoe, 2000 - 2002 GMC Sierra 1500, 2000 - 2002 GMC Sierra 1500, 2000 - 2002 GMC Yukon, 2000 - 2002 GMC Yukon, 2000 - 2002 GMC Yukon XL 1500, 2000 - 2000 Chevrolet Silverado 2500, 2000 - 2000 GMC Sierra 2500, 1999 - 2002 Daewoo Lanos, 1999 - 2002 Daewoo Leganza, 1999 - 2002 GMC Sierra 1500, 1999 - 2001 Chevrolet S10, 1999 - 2001 Chevrolet Silverado 1500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Chevrolet S10 Blazer
Installation PositionCheck the fitment chart
Item LocatedUnited States
ConditionNew
item #1003094Q
Note
Oxygen Senor - B1S1 Indicates Bank 1 Sensor 1, B1S2 Indicates Bank 1 Sensor 2, B2S1 Indicates Bank 2 Sensor 1, B2S1 Indicates Bank 1 Sensor 2.
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AisinPart # OXSGM-00234
Upstream O2 Oxygen Sensor | 1-Pc Direct-Fit | Aisin OXSGM-00234
4.5665 Reviews
$37.99
Low stock: Only 3 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1994 - 1995 Chevrolet C2500, 1994 - 1995 GMC C2500, 1994 - 1994 Chevrolet C1500, 1994 - 1994 Chevrolet C1500 Suburban, 1994 - 1994 Chevrolet C2500 Suburban, 1994 - 1994 Chevrolet K1500, 1994 - 1994 Chevrolet K1500 Suburban, 1994 - 1994 Chevrolet K2500, 1994 - 1994 Chevrolet K2500 Suburban, 1994 - 1994 GMC C1500, 1994 - 1994 GMC C1500 Suburban, 1994 - 1994 GMC C2500 Suburban, 1994 - 1994 GMC K1500, 1994 - 1994 GMC K1500 Suburban, 1994 - 1994 GMC K2500, 1994 - 1994 GMC K2500 Suburban, 1993 - 1994 Chevrolet P30, 1993 - 1994 GMC P3500, 1993 - 1993 Buick Regal, 1993 - 1993 Chevrolet Lumina
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Chevrolet S10 Blazer
Quantity1
Installation PositionUpstream
Item LocatedUnited States
ConditionNew
item #1018EDTS
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AisinPart # OXSAZ-00288
Upstream or Downstream or Center O2 Oxygen Sensor | 1-Pc Direct-Fit | Aisin OXSAZ-00288
4.5665 Reviews
$43.99
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 Yukon, 2000 - 2002 GMC Yukon XL 1500, 2000 - 2000 Chevrolet Silverado 2500, 2000 - 2000 GMC Sierra 2500, 1999 - 2002 Daewoo Lanos, 1999 - 2002 Daewoo Leganza, 1999 - 2002 GMC Sierra 1500, 1999 - 2001 Chevrolet S10, 1999 - 2001 Chevrolet Silverado 1500, 1999 - 2001 Isuzu VehiCROSS, 1999 - 2000 Cadillac Escalade, 1999 - 1999 Chevrolet Silverado 1500, 1999 - 1999 Chevrolet Silverado 2500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Chevrolet S10 Blazer
Quantity1
Installation PositionUpstream or Downstream or Center
Item LocatedUnited States
ConditionNew
item #1018EP6G
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AisinPart # OXSGM-00290
Upstream & Downstream O2 Oxygen Sensor | 4-Pc Direct-Fit | Aisin OXSGM-00290
4.5665 Reviews
$129.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1999 - 2001 Chevrolet S10, 1999 - 2001 Isuzu VehiCROSS, 1998 - 2001 GMC Sonoma, 1998 - 2000 Isuzu Amigo, 1998 - 1999 Acura SLX, 1998 - 1999 Isuzu Trooper, 1997 - 2000 Isuzu Hombre, 1996 - 2001 Chevrolet Blazer, 1996 - 2000 Honda Passport, 1996 - 2000 Isuzu Rodeo, 1996 - 1997 Acura SLX, 1996 - 1997 Isuzu Trooper, 1996 - 1996 Buick Commercial Chassis, 1996 - 1996 Buick Roadmaster, 1996 - 1996 Cadillac Commercial Chassis, 1996 - 1996 Cadillac Fleetwood, 1996 - 1996 Chevrolet Caprice, 1996 - 1996 Chevrolet Corvette, 1996 - 1996 Chevrolet Impala
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Chevrolet S10 Blazer
Quantity4
Installation PositionUpstream & Downstream
Item LocatedUnited States
ConditionNew
item #1018EGN9
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AisinPart # OXSAZ-00289
Upstream or Downstream O2 Oxygen Sensor | 2-Pc Direct-Fit | Aisin OXSAZ-00289
4.5665 Reviews
$97.99
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: Chevrolet S10 Blazer
Quantity2
Installation PositionUpstream or Downstream
Item LocatedUnited States
ConditionNew
item #1018EGTK
Show less
AisinPart # OXSAZ-00229
Upstream or Downstream O2 Oxygen Sensor | 2-Pc Direct-Fit | Aisin OXSAZ-00229
4.5665 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: Chevrolet S10 Blazer
Quantity2
Installation PositionUpstream or Downstream
Item LocatedUnited States
ConditionNew
item #1018EGPX
Show less
AisinPart # OXSAZ-00228
Upstream or Downstream O2 Oxygen Sensor | 1-Pc Direct-Fit | Aisin OXSAZ-00228
4.5665 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: Chevrolet S10 Blazer
Quantity1
Installation PositionUpstream or Downstream
Item LocatedUnited States
ConditionNew
item #1018EGYG
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BoschPart # 11027
Oxygen Sensor - Bosch 11027
46 Reviews
$49.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2001-2002 Saturn SC1, 2001-2002 Saturn SC2, 2001-2002 Saturn SL, 2001-2002 Saturn SL1, 2001-2002 Saturn SL2, 2001-2001 Saturn SW2, 2000-2000 Saturn SC1, 2000-2000 Saturn SL, 2000-2000 Saturn SL1, 1999-2000 Chevrolet S10, 1999-2000 GMC Sonoma, 1999-1999 Oldsmobile Alero, 1999-1999 Pontiac Grand Am, 1998-1998 Chevrolet S10, 1998-1998 GMC Sonoma, 1997-2000 Isuzu Hombre, 1997-1999 Chevrolet Malibu, 1996-2000 Saturn SC2, 1996-2000 Saturn SL2, 1996-2000 Saturn SW2
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Chevrolet S10 Blazer
Quantity1
Item LocatedUnited States
Part interchange
11027, J3240083, 3238765, 91160612300, 94460613300, 0025421218
item #1002AYHA
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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: Chevrolet S10 Blazer
Quantity1
Item LocatedUnited States
Part interchange
OS5047, 751900, 753269, 753030, 754057, SG1614T, SG1415, SG1366,
...View moreitem #1000YEDE
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DensoPart # 234-3005
Denso 234-3005 Oxygen Sensor, Upstream
4.29 Reviews
$48.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1995-1995 Chevrolet Blazer, 1994-1995 Chevrolet Corvette, 1994-1995 Chevrolet S10, 1994-1995 GMC Jimmy, 1994-1995 GMC Sonoma, 1994-1994 Chevrolet Astro, 1994-1994 Chevrolet Blazer, 1994-1994 Chevrolet C1500, 1994-1994 Chevrolet C1500, 1994-1994 Chevrolet C1500, 1994-1994 Chevrolet C1500 Suburban, 1994-1994 Chevrolet C2500, 1994-1994 Chevrolet C2500, 1994-1994 Chevrolet C2500, 1994-1994 Chevrolet C2500 Suburban, 1994-1994 Chevrolet C3500, 1994-1994 Chevrolet G10, 1994-1994 Chevrolet G20, 1994-1994 Chevrolet G30, 1994-1994 Chevrolet K1500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Chevrolet S10 Blazer
Quantity1
Installation PositionUpstream
Item LocatedUnited States
Part interchange
234-3005, 21003, 23502, 8953002106, 4778167, 213-633, 213-1298, 213-27,
...View moreitem #1003RW5K
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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: Chevrolet S10 Blazer
Quantity1
Item LocatedUnited States
Part interchange
234-4012, 19178918, 19178930, 24626, 21006, 8253252660, 19178937, 96335927,
...View moreitem #1003S56U
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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: Chevrolet S10 Blazer
Quantity1
Item LocatedUnited States
Part interchange
234-4000, 13470, 15503, 15702, 15058, 13111, 13027, 13326,
...View moreitem #1003S484
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DensoPart # 234-3000
Oxygen Sensor - Denso 234-3000
4.29 Reviews
$53.99
Low stock: Only 2 left
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 2001-2002 Mazda Millenia, 2000-2000 Mazda Millenia, 1999-1999 Mazda Millenia, 1998-1999 Mazda 626, 1998-1998 Mazda Millenia, 1997-1997 Ford Probe, 1997-1997 Mazda 626, 1997-1997 Mazda Millenia, 1997-1997 Mazda MX-6, 1996-1998 Volkswagen Golf, 1996-1997 Kia Sephia, 1996-1996 Ford Probe, 1996-1996 Mazda 626, 1996-1996 Mazda Millenia, 1996-1996 Mazda Millenia, 1996-1996 Mazda MX-3, 1996-1996 Mazda MX-6, 1995-1998 Mazda Protege, 1995-1996 Mazda Millenia, 1995-1995 Chevrolet Blazer
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Chevrolet S10 Blazer
Quantity1
Item LocatedUnited States
Part interchange
234-3000, 213-1241, 213-1242, OS516, OS521, 13589, 13936, 13508,
...View moreitem #1002HP48
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Walker ProductsPart # 250-24012
Walker Products 250-24012 Oxygen Sensor
55 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: Chevrolet S10 Blazer
Quantity1
Item LocatedUnited States
Part interchange
250-24012
item #1001PCCQ
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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: Chevrolet S10 Blazer
Quantity1
Item LocatedUnited States
Part interchange
234-4650, 8972873520, 21047, 21516, 8125671270, 213-819, 213-817, 213-802,
...View moreitem #1005HQQS
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DensoPart # 234-3094
Oxygen Sensor - Upstream - Denso 234-3094
4.29 Reviews
$49.99
Enter ZIP codeFree standard shipping
3-year warranty
90 days free return
Fits 1993-1993 Buick Regal, 1993-1993 Chevrolet Lumina, 1993-1993 Oldsmobile Cutlass Supreme, 1993-1993 Pontiac Grand Prix, 1993-1993 Pontiac Grand Prix, 1993-1993 Pontiac Grand Prix, 1992-1994 Chevrolet P30, 1992-1994 GMC P3500, 1992-1993 Chevrolet Astro, 1992-1993 Chevrolet Blazer, 1992-1993 Chevrolet C1500, 1992-1993 Chevrolet C1500, 1992-1993 Chevrolet C1500, 1992-1993 Chevrolet C1500 Suburban, 1992-1993 Chevrolet C2500, 1992-1993 Chevrolet C2500, 1992-1993 Chevrolet C2500, 1992-1993 Chevrolet C2500 Suburban, 1992-1993 Chevrolet C3500, 1992-1993 Chevrolet Caprice
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Chevrolet S10 Blazer
Quantity1
Installation PositionUpstream
Item LocatedUnited States
Part interchange
234-3094, 21003, 213-16, 213-632, OS120, 13077, ES10005, SG91,
...View moreitem #1003RXKG
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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:
- Catalytic Converter: Persistent issues after replacing a downstream oxygen sensor may indicate converter failure
- MAF Sensor: Works with your oxygen sensor to calculate air intake
- Ignition Coils & Spark Plugs: Misfires can damage O2 sensors quickly
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.
Frequently Asked Questions
Can I clean my oxygen sensor instead of replacing it?
Should I replace O2 sensors in pairs?
Do I need a special tool?
How long do oxygen sensors last?
What’s the difference between upstream and downstream sensors?
What happens if I ignore a bad oxygen sensor?
How do I know if it’s Bank 1 or Bank 2?
Will replacing an oxygen sensor improve MPG?
How do oxygen sensor voltages relate to fuel mixture?
How much does it cost to replace an oxygen sensor?
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Why Is My Car Running Worse After a New O2 Sensor?
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P0130 Code: Bank 1 Sensor 1 O2 Circuit Diagnosis & Fixes
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Sep 29, 2026
Can You Clean an O2 Sensor to Make It Work Again?
Cleaning an O2 sensor rarely fixes internal faults or chemical poisoning. Learn to diagnose root causes, interpret deposit colors, avoid damaging methods, and determine when replacement is the only reliable solution for engine health.
Sep 22, 2026