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Oxygen Sensor 21539 – NTK

Name: Oxygen Sensor 21539 - NTK
Brand: NTK
Availability: InStock

PART#: 21539

NTK

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$40.29

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Interchanges

Brand	Part #

General Motors	19178116
Delphi	ES20000
CARQUEST	75-1726 / 751726
Bosch	13452
Standard Motor Products	SG272
General Motors	19178958
Delphi	ES10013
Standard Motor Products	SG273
ACDelco	AFS95
General Motors	19178935
Bosch	13507
BWD	OS823
BWD	OS824
DENSO Auto Parts	234-4018 / 2344018
BWD	OS216
Bosch	13474
Standard Motor Products	SG479
ACDelco	AFS109
Spectra Premium	OS5042
ACDelco	AFS106
Delphi	ES10066
Delphi	ES10076
Bosch	13016
Delphi	ES20001
Bosch	13488
General Motors	19178945
ACDelco	AFS135
BWD	OS839
Delphi	ES10012
Delphi	ES10083
ACDelco	AFS125
Standard Motor Products	SG279
ACDelco	213-2868 / 2132868

Fitments

Year	Make	Model	Submodel	Engine	Fuel Type	Position	Note
2003	Buick	LeSabre	Limited	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2003	Buick	LeSabre	Custom	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2003	Buick	Park Avenue	Ultra	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2003	Buick	Park Avenue	Base	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2003	Buick	Regal	GS	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2003	Buick	Regal	LS	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2003	Chevrolet	Impala	LS Sport	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2003	Chevrolet	Impala	Police	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2003	Chevrolet	Impala	LS	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2003	Chevrolet	Impala	Base	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2003	Chevrolet	Monte Carlo	SS High Sport	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2003	Chevrolet	Monte Carlo	SS Pace Car	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2003	Chevrolet	Monte Carlo	SS	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2003	Pontiac	Bonneville	SLE	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2003	Pontiac	Bonneville	SE	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2003	Pontiac	Bonneville	SSEi	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2003	Pontiac	Grand Prix	GTP	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2003	Pontiac	Grand Prix	GT	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2002	Buick	LeSabre	Custom	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2002	Buick	LeSabre	Limited	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2002	Buick	Park Avenue	Base	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2002	Buick	Park Avenue	Ultra	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2002	Buick	Regal	LS	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2002	Buick	Regal	GS	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2002	Cadillac	Escalade	Base	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Cadillac	Escalade	Base	5.3V8	GAS	Downstream Left
2002	Cadillac	Escalade	Base	6.0V8	GAS	Downstream Left
2002	Cadillac	Escalade	Base	6.0V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2002	Cadillac	Escalade EXT	Base	6.0V8	GAS	Downstream Left
2002	Cadillac	Escalade EXT	Base	6.0V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2002	Chevrolet	Avalanche 1500	Base	5.3V8	GAS	Downstream Left
2002	Chevrolet	Avalanche 1500	Z71	5.3V8	GAS	Downstream Right	B2S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Avalanche 1500	North Face	5.3V8	GAS	Downstream Left
2002	Chevrolet	Avalanche 1500	Base	5.3V8	GAS	Downstream Right	B2S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Avalanche 1500	North Face	5.3V8	GAS	Downstream Right	B2S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Avalanche 1500	On Road Edition	5.3V8	GAS	Downstream Left
2002	Chevrolet	Avalanche 1500	Z71	5.3V8	GAS	Downstream Left
2002	Chevrolet	Avalanche 1500	On Road Edition	5.3V8	GAS	Downstream Right	B2S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Camaro	Base	3.8V6	GAS	Upstream	B2S1; Located in RH Manifold; OE Equivalent Design
2002	Chevrolet	Express 1500	LT	5.7V8	GAS	Downstream Left
2002	Chevrolet	Express 1500	Base	4.3V6	GAS	Downstream	B1S2; OE Equivalent Design
2002	Chevrolet	Express 1500	LS	5.7V8	GAS	Downstream Left
2002	Chevrolet	Express 1500	LT	4.3V6	GAS	Downstream	B1S2; OE Equivalent Design
2002	Chevrolet	Express 1500	LS	5.7V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2002	Chevrolet	Express 1500	Base	5.7V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2002	Chevrolet	Express 1500	LS	5.0V8	GAS	Downstream	B1S2; OE Equivalent Design
2002	Chevrolet	Express 1500	LT	5.7V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2002	Chevrolet	Express 1500	Base	5.7V8	GAS	Downstream Left
2002	Chevrolet	Express 1500	Base	5.0V8	GAS	Downstream	B1S2; OE Equivalent Design
2002	Chevrolet	Express 1500	LS	4.3V6	GAS	Downstream	B1S2; OE Equivalent Design
2002	Chevrolet	Express 1500	LT	5.0V8	GAS	Downstream	B1S2; OE Equivalent Design
2002	Chevrolet	Express 2500	Base	5.7V8	BI-FUEL	Downstream Right	B2S2; OE Equivalent Design
2002	Chevrolet	Express 2500	Base	4.3V6	GAS	Downstream	B1S2; OE Equivalent Design
2002	Chevrolet	Express 2500	Base	5.7V8	GAS	Downstream Left
2002	Chevrolet	Express 2500	Base	5.0V8	GAS	Downstream	B1S2; OE Equivalent Design
2002	Chevrolet	Express 2500	Base	5.7V8	BI-FUEL	Downstream Left
2002	Chevrolet	Express 2500	LS	5.7V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2002	Chevrolet	Express 2500	LS	5.7V8	BI-FUEL	Downstream Right	B2S2; OE Equivalent Design
2002	Chevrolet	Express 2500	Base	5.7V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2002	Chevrolet	Express 2500	LS	5.7V8	BI-FUEL	Downstream Left
2002	Chevrolet	Express 2500	LS	4.3V6	GAS	Downstream	B1S2; OE Equivalent Design
2002	Chevrolet	Express 2500	LS	5.7V8	GAS	Downstream Left
2002	Chevrolet	Express 2500	LS	5.0V8	GAS	Downstream	B1S2; OE Equivalent Design
2002	Chevrolet	Express 3500	Base	5.7V8	GAS	Downstream Left
2002	Chevrolet	Express 3500	LS	5.7V8	BI-FUEL	Downstream Right	B2S2; OE Equivalent Design
2002	Chevrolet	Express 3500	Base	5.7V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2002	Chevrolet	Express 3500	Base	5.7V8	BI-FUEL	Downstream Right	B2S2; OE Equivalent Design
2002	Chevrolet	Express 3500	LS	5.7V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2002	Chevrolet	Express 3500	LS	5.7V8	BI-FUEL	Downstream Left
2002	Chevrolet	Express 3500	Base	5.7V8	BI-FUEL	Downstream Left
2002	Chevrolet	Express 3500	LS	5.7V8	GAS	Downstream Left
2002	Chevrolet	Impala	Base	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2002	Chevrolet	Impala	LS	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2002	Chevrolet	Monte Carlo	SS Dale Earnhardt Signature Edition	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2002	Chevrolet	Monte Carlo	SS 35th Anniversary Edition	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2002	Chevrolet	Monte Carlo	SS	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2002	Chevrolet	Silverado 1500	LS	5.3V8	GAS	Downstream Left
2002	Chevrolet	Silverado 1500	LS	4.3V6	GAS	Downstream Left	\| Engine VIN: W;
2002	Chevrolet	Silverado 1500	WT	4.3V6	GAS	Downstream Left	\| Engine VIN: W;
2002	Chevrolet	Silverado 1500	LS	4.3V6	GAS	Downstream Right	B2S2; OE Equivalent Design \| Engine VIN: W;
2002	Chevrolet	Silverado 1500	LT	4.8V8	GAS	Downstream Left
2002	Chevrolet	Silverado 1500	Base	4.8V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Silverado 1500	WT	4.8V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Silverado 1500	WT	5.3V8	GAS	Downstream Left
2002	Chevrolet	Silverado 1500	Base	5.3V8	FLEX	Downstream Left
2002	Chevrolet	Silverado 1500	Base	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Silverado 1500	Base	5.3V8	GAS	Downstream Left
2002	Chevrolet	Silverado 1500	WT	4.3V6	GAS	Downstream Right	B2S2; OE Equivalent Design \| Engine VIN: W;
2002	Chevrolet	Silverado 1500	LT	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Silverado 1500	WT	4.8V8	GAS	Downstream Left
2002	Chevrolet	Silverado 1500	LS	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Silverado 1500	LS	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Silverado 1500	LT	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Silverado 1500	Base	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Silverado 1500	Base	4.3V6	GAS	Downstream Right	B2S2; OE Equivalent Design \| Engine VIN: W;
2002	Chevrolet	Silverado 1500	LS	5.3V8	FLEX	Downstream Left
2002	Chevrolet	Silverado 1500	LS	4.8V8	GAS	Downstream Left
2002	Chevrolet	Silverado 1500	Base	4.8V8	GAS	Downstream Left
2002	Chevrolet	Silverado 1500	WT	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Silverado 1500	Base	4.3V6	GAS	Downstream Left	\| Engine VIN: W;
2002	Chevrolet	Silverado 1500	LT	5.3V8	GAS	Downstream Left
2002	Chevrolet	Silverado 1500	LS	4.8V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Silverado 1500	LT	4.3V6	GAS	Downstream Left	\| Engine VIN: W;
2002	Chevrolet	Silverado 1500	LT	5.3V8	FLEX	Downstream Left
2002	Chevrolet	Silverado 1500	LT	4.3V6	GAS	Downstream Right	B2S2; OE Equivalent Design \| Engine VIN: W;
2002	Chevrolet	Silverado 1500	WT	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Silverado 1500	WT	5.3V8	FLEX	Downstream Left
2002	Chevrolet	Silverado 1500	LT	4.8V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Suburban 1500	LS	5.3V8	FLEX	Downstream Left
2002	Chevrolet	Suburban 1500	Z71	5.3V8	GAS	Downstream Left
2002	Chevrolet	Suburban 1500	Z71	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Suburban 1500	LS	5.3V8	GAS	Downstream Left
2002	Chevrolet	Suburban 1500	LT	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Suburban 1500	LT	5.3V8	GAS	Downstream Left
2002	Chevrolet	Suburban 1500	Z71	5.3V8	FLEX	Downstream Left
2002	Chevrolet	Suburban 1500	LS	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Suburban 1500	LT	5.3V8	FLEX	Downstream Left
2002	Chevrolet	Suburban 1500	LT	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Suburban 1500	LS	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Suburban 1500	Z71	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Tahoe	Z71	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Tahoe	LS	4.8V8	GAS	Downstream Left
2002	Chevrolet	Tahoe	LS	5.3V8	GAS	Downstream Left
2002	Chevrolet	Tahoe	LS	5.3V8	FLEX	Downstream Left
2002	Chevrolet	Tahoe	LS	4.8V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Tahoe	LS	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Tahoe	LT	4.8V8	GAS	Downstream Left
2002	Chevrolet	Tahoe	LT	5.3V8	GAS	Downstream Left
2002	Chevrolet	Tahoe	Z71	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Tahoe	LT	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Tahoe	Z71	5.3V8	FLEX	Downstream Left
2002	Chevrolet	Tahoe	LS	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Tahoe	LT	5.3V8	FLEX	Downstream Left
2002	Chevrolet	Tahoe	LT	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Tahoe	LT	4.8V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	Chevrolet	Tahoe	Z71	5.3V8	GAS	Downstream Left
2002	GMC	Savana 1500	SLT	5.7V8	GAS	Downstream Left
2002	GMC	Savana 1500	Base	5.7V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2002	GMC	Savana 1500	SLT	5.7V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2002	GMC	Savana 1500	Base	4.3V6	GAS	Downstream	B1S2; OE Equivalent Design
2002	GMC	Savana 1500	SLT	5.0V8	GAS	Downstream	B1S2; OE Equivalent Design
2002	GMC	Savana 1500	Base	5.0V8	GAS	Downstream	B1S2; OE Equivalent Design
2002	GMC	Savana 1500	Base	5.7V8	GAS	Downstream Left
2002	GMC	Savana 1500	SLT	4.3V6	GAS	Downstream	B1S2; OE Equivalent Design
2002	GMC	Savana 2500	Base	5.7V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2002	GMC	Savana 2500	SLT	5.7V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2002	GMC	Savana 2500	SLT	5.7V8	BI-FUEL	Downstream Left
2002	GMC	Savana 2500	Base	4.3V6	GAS	Downstream	B1S2; OE Equivalent Design
2002	GMC	Savana 2500	Base	5.7V8	BI-FUEL	Downstream Left
2002	GMC	Savana 2500	SLT	5.7V8	GAS	Downstream Left
2002	GMC	Savana 2500	SLT	4.3V6	GAS	Downstream	B1S2; OE Equivalent Design
2002	GMC	Savana 2500	Base	5.7V8	BI-FUEL	Downstream Right	B2S2; OE Equivalent Design
2002	GMC	Savana 2500	SLT	5.7V8	BI-FUEL	Downstream Right	B2S2; OE Equivalent Design
2002	GMC	Savana 2500	Base	5.0V8	GAS	Downstream	B1S2; OE Equivalent Design
2002	GMC	Savana 2500	SLT	5.0V8	GAS	Downstream	B1S2; OE Equivalent Design
2002	GMC	Savana 2500	Base	5.7V8	GAS	Downstream Left
2002	GMC	Savana 3500	Base	5.7V8	BI-FUEL	Downstream Left
2002	GMC	Savana 3500	Base	5.7V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2002	GMC	Savana 3500	Base	5.7V8	BI-FUEL	Downstream Right	B2S2; OE Equivalent Design
2002	GMC	Savana 3500	SLT	5.7V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2002	GMC	Savana 3500	SLT	5.7V8	GAS	Downstream Left
2002	GMC	Savana 3500	SLT	5.7V8	BI-FUEL	Downstream Left
2002	GMC	Savana 3500	Base	4.3V6	GAS	Downstream	B1S2; OE Equivalent Design
2002	GMC	Savana 3500	SLT	5.7V8	BI-FUEL	Downstream Right	B2S2; OE Equivalent Design
2002	GMC	Savana 3500	SLT	4.3V6	GAS	Downstream	B1S2; OE Equivalent Design
2002	GMC	Savana 3500	Base	5.7V8	GAS	Downstream Left
2002	GMC	Sierra 1500	WT	4.3V6	GAS	Downstream Left	\| Engine VIN: W;
2002	GMC	Sierra 1500	WT	4.8V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Sierra 1500	SLE	4.3V6	GAS	Downstream Left	\| Engine VIN: W;
2002	GMC	Sierra 1500	SL	5.3V8	GAS	Downstream Left
2002	GMC	Sierra 1500	SLT	5.3V8	GAS	Downstream Left
2002	GMC	Sierra 1500	WT	5.3V8	GAS	Downstream Left
2002	GMC	Sierra 1500	SLE	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Sierra 1500	SL	4.3V6	GAS	Downstream Left	\| Engine VIN: W;
2002	GMC	Sierra 1500	Base	5.3V8	GAS	Downstream Left
2002	GMC	Sierra 1500	SL	5.3V8	FLEX	Downstream Left
2002	GMC	Sierra 1500	SLE	5.3V8	FLEX	Downstream Left
2002	GMC	Sierra 1500	WT	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Sierra 1500	Base	4.3V6	GAS	Downstream Left	\| Engine VIN: W;
2002	GMC	Sierra 1500	SLT	4.3V6	GAS	Downstream Right	B2S2; OE Equivalent Design \| Engine VIN: W;
2002	GMC	Sierra 1500	SLT	4.8V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Sierra 1500	Base	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Sierra 1500	SL	4.8V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Sierra 1500	WT	4.3V6	GAS	Downstream Right	B2S2; OE Equivalent Design \| Engine VIN: W;
2002	GMC	Sierra 1500	Base	4.8V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Sierra 1500	SL	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Sierra 1500	SLT	4.3V6	GAS	Downstream Left	\| Engine VIN: W;
2002	GMC	Sierra 1500	WT	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Sierra 1500	Base	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Sierra 1500	SLE	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Sierra 1500	HT	5.3V8	GAS	Downstream Left
2002	GMC	Sierra 1500	HT	4.3V6	GAS	Downstream Left	\| Engine VIN: W;
2002	GMC	Sierra 1500	Base	5.3V8	FLEX	Downstream Left
2002	GMC	Sierra 1500	HT	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Sierra 1500	SL	4.3V6	GAS	Downstream Right	B2S2; OE Equivalent Design \| Engine VIN: W;
2002	GMC	Sierra 1500	HT	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Sierra 1500	SLT	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Sierra 1500	SL	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Sierra 1500	SLE	4.8V8	GAS	Downstream Left
2002	GMC	Sierra 1500	WT	4.8V8	GAS	Downstream Left
2002	GMC	Sierra 1500	HT	4.8V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Sierra 1500	WT	5.3V8	FLEX	Downstream Left
2002	GMC	Sierra 1500	HT	5.3V8	FLEX	Downstream Left
2002	GMC	Sierra 1500	SLE	4.3V6	GAS	Downstream Right	B2S2; OE Equivalent Design \| Engine VIN: W;
2002	GMC	Sierra 1500	Base	4.8V8	GAS	Downstream Left
2002	GMC	Sierra 1500	SLE	4.8V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Sierra 1500	SL	4.8V8	GAS	Downstream Left
2002	GMC	Sierra 1500	HT	4.3V6	GAS	Downstream Right	B2S2; OE Equivalent Design \| Engine VIN: W;
2002	GMC	Sierra 1500	SLT	4.8V8	GAS	Downstream Left
2002	GMC	Sierra 1500	SLE	5.3V8	GAS	Downstream Left
2002	GMC	Sierra 1500	HT	4.8V8	GAS	Downstream Left
2002	GMC	Sierra 1500	Base	4.3V6	GAS	Downstream Right	B2S2; OE Equivalent Design \| Engine VIN: W;
2002	GMC	Sierra 1500	SLT	5.3V8	FLEX	Downstream Left
2002	GMC	Sierra 1500	SLT	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Yukon	Denali	6.0V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2002	GMC	Yukon	SLE	4.8V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Yukon	SLE	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Yukon	SLT	5.3V8	GAS	Downstream Left
2002	GMC	Yukon	SLT	5.3V8	FLEX	Downstream Left
2002	GMC	Yukon	SLT	4.8V8	GAS	Downstream Left
2002	GMC	Yukon	SLE	5.3V8	GAS	Downstream Left
2002	GMC	Yukon	SLE	5.3V8	FLEX	Downstream Left
2002	GMC	Yukon	SLT	4.8V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Yukon	SLT	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Yukon	SLE	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Yukon	SLE	4.8V8	GAS	Downstream Left
2002	GMC	Yukon	Denali	6.0V8	GAS	Downstream Left
2002	GMC	Yukon	SLT	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Yukon XL 1500	SLE	5.3V8	FLEX	Downstream Left
2002	GMC	Yukon XL 1500	SLE	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Yukon XL 1500	SLT	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Yukon XL 1500	SLE	5.3V8	GAS	Downstream Left
2002	GMC	Yukon XL 1500	SLE	5.3V8	GAS	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Yukon XL 1500	SLT	5.3V8	FLEX	Downstream Right	B1S2; Exc. Canada Built; OE Equivalent Design
2002	GMC	Yukon XL 1500	SLT	5.3V8	GAS	Downstream Left
2002	GMC	Yukon XL 1500	SLT	5.3V8	FLEX	Downstream Left
2002	Pontiac	Bonneville	SLE	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2002	Pontiac	Bonneville	SSEi	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2002	Pontiac	Bonneville	SE	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2002	Pontiac	Firebird	Base	3.8V6	GAS	Upstream	B2S1; Located in RH Manifold; OE Equivalent Design
2002	Pontiac	Grand Prix	GTP	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2002	Pontiac	Grand Prix	SE	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2002	Pontiac	Grand Prix	GT	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2001	Buick	LeSabre	Custom	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2001	Buick	LeSabre	Limited	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2001	Buick	Park Avenue	Base	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2001	Buick	Park Avenue	Ultra	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2001	Buick	Regal	GS	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2001	Buick	Regal	LS	3.8V6	GAS	Upstream	B1S1; OE Equivalent Design
2001	Chevrolet	Camaro	Base	3.8V6	GAS	Upstream	B1S1; Located in LH Manifold; OE Equivalent Design

Product info

The NTK Oxygen Sensor part number 21539 is the perfect fit for Buick, Cadillac, Chevrolet, and GMC vehicles. This sensor is designed to offer reliable and accurate readings of the oxygen levels in the exhaust system.

The NTK Oxygen Sensor part number 21539 features a high-quality ceramic element that is designed to withstand extreme temperatures and provide faster response times. This sensor is also equipped with a waterproof connector that ensures long-lasting performance and durability.

One of the biggest benefits of using the NTK Oxygen Sensor part number 21539 is that it can help improve fuel efficiency and reduce emissions. This sensor is responsible for measuring the oxygen levels in the exhaust system, which helps your vehicle’s engine to burn fuel more efficiently. This, in turn, leads to better gas mileage and fewer harmful emissions.

The NTK Oxygen Sensor part number 21539 is also easy to install and can be done by anyone with basic mechanical skills. This sensor is a direct replacement for your original equipment and will fit seamlessly into your vehicle’s exhaust system.

Overall, the NTK Oxygen Sensor part number 21539 is an essential component for any Buick, Cadillac, Chevrolet, or GMC vehicle. It offers reliable performance, improved fuel efficiency, and reduced emissions. If you want to keep your vehicle running smoothly and efficiently, this oxygen sensor is a must-have.

Specifications

California Proposition 65	WARNING/Precaución: Cancer and Reproductive Harm - Cáncer y daño al sistema reproductivo - www.P65Warnings.ca.gov
Mounting Type	Threaded
Sensor Type	Heated
Thread Diameter	18.000
Universal Or Specific Fit	Specific
Wire Quantity	4
Wiring Harness Length	15.2500

Warranty

We offer a 2-year warranty on all parts that we sell. If the part fails within 2 years of purchase, please contact us for instructions to replace it. The warranty does not cover normal wear and tear or improper installation. On many parts, we also offer Extend product protection, which is a way to add up to 3 additional years for 5 total years of worry free coverage. Select your preferred term length and you're covered!

Delivery & Returns

Delivery Info

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Returns Info

Newparts.com offers a thirty (30) day return for refund for all items purchased through Newparts.com. To qualify for return and refund, all items must be new and in their original manufacturers box. To initiate a return, please contact our customer service. This information is only a summary. Complete shipping and return policy information can be found in our web site policies.

Oxygen Sensor 21539 – NTK

Delivery Info

Returns Info

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