Need expert help? Reach out to us via live chat MON-SAT, 9AM to 5PM ET, for support. Our specialists are ready to assist you!

Select vehicle to confirm fitment

Oxygen Sensor 21048 – NTK

PART#: 21048

NTK

Add to My Projects

$33.39

Select vehicle to confirm fitment

In stock

Need help? Talk to us, or chat with an expert!

Add to My Projects

Interchanges

Brand	Part #

ACDelco	213-1552 / 2131552
Spectra Premium	OS5201
DENSO Auto Parts	234-4651 / 2344651
Delphi	ES20094
Bosch	13787
Bosch	13780
Standard Motor Products	SG720
ACDelco	213-1692 / 2131692
General Motors	12559848
General Motors	19209807
Bosch	13178
General Motors	12561777
Delphi	ES20320
Bosch	15280
Isuzu	8125731680
General Motors	12573168
DENSO Auto Parts	234-4647 / 2344647
ACDelco	213-1528 / 2131528
ACDelco	213-816 / 213816
Bosch	15895
ACDelco	213-1641 / 2131641
Bosch	15902
ACDelco	213-818 / 213818
CARQUEST	75-4063 / 754063
General Motors	12567163
CARQUEST	75-2535 / 752535
ACDelco	213-800 / 213800
ACDelco	213-1688 / 2131688
Isuzu	8125671630
General Motors	12562621
BWD	OS1473

Fitments

Year	Make	Model	Submodel	Engine	Fuel Type	Position	Note
2008	Buick	Lucerne	CX	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2008	Buick	Lucerne	CXL	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Buick	Terraza	CX	3.9V6	FLEX	Downstream	B1S2; OE Equivalent Design
2007	Buick	Terraza	CXL	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Buick	Terraza	CXL	3.9V6	FLEX	Downstream	B1S2; OE Equivalent Design
2007	Buick	Terraza	CX	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Buick	LaCrosse	CX	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Buick	LaCrosse	CXL	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Buick	Lucerne	CX	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Buick	Lucerne	CXL	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Buick	Rendezvous	CXL	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Buick	Rendezvous	CX	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Uplander	LT	3.9V6	FLEX	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Uplander	LS	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Uplander	LS	3.9V6	FLEX	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Uplander	Base	3.9V6	FLEX	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Uplander	LT	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Uplander	Base	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Corvette	Base	6.0V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2007	Chevrolet	Corvette	Z06	7.0V8	GAS	Downstream Left
2007	Chevrolet	Corvette	Base	6.0V8	GAS	Downstream Left
2007	Chevrolet	Corvette	Z06	7.0V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2007	Chevrolet	Impala	Police	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Impala	LT	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Impala	LT	3.5V6	FLEX	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Impala	LS	3.5V6	FLEX	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Impala	LT	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Impala	SS	5.3V8	GAS	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Impala	LS	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Impala	LTZ	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Malibu	Maxx SS	3.9V6	GAS	Downstream Right	B1S2; OE Equivalent Design
2007	Chevrolet	Malibu	SS	3.9V6	GAS	Downstream Right	B1S2; OE Equivalent Design
2007	Chevrolet	Monte Carlo	LS	3.5V6	FLEX	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Monte Carlo	LT	3.5V6	FLEX	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Monte Carlo	LT	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Monte Carlo	SS	5.3V8	GAS	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Monte Carlo	LS	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Equinox	LS	3.4V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Chevrolet	Equinox	LT	3.4V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Pontiac	G6	GT	3.9V6	GAS	Downstream Right	B1S2; OE Equivalent Design \| Automatic;
2007	Pontiac	G6	GT	3.5V6	GAS	Downstream Right	B1S2; OE Equivalent Design
2007	Pontiac	G6	Base	3.5V6	GAS	Downstream Right	B1S2; OE Equivalent Design
2007	Pontiac	Grand Prix	GT	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Pontiac	Grand Prix	GXP	5.3V8	GAS	Downstream	B1S2; OE Equivalent Design
2007	Pontiac	Grand Prix	Base	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Pontiac	Torrent	Base	3.4V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Saturn	Aura	XE	3.5V6	GAS	Downstream Right	B1S2; OE Equivalent Design
2007	Saturn	Relay	1	3.9V6	FLEX	Downstream	B1S2; OE Equivalent Design
2007	Saturn	Relay	1	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Saturn	Relay	3	3.9V6	FLEX	Downstream	B1S2; OE Equivalent Design
2007	Saturn	Relay	2	3.9V6	FLEX	Downstream	B1S2; OE Equivalent Design
2007	Saturn	Relay	3	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2007	Saturn	Relay	2	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Buick	LaCrosse	CX	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Buick	LaCrosse	CXL	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Buick	Rendezvous	CX	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Buick	Rendezvous	CXL	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Buick	Terraza	CX	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Buick	Terraza	CXL	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Buick	Terraza	CX	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Buick	Terraza	CXL	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Buick	Lucerne	CX	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Buick	Lucerne	CXL	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Chevrolet	Equinox	LS	3.4V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Chevrolet	Equinox	LT	3.4V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Chevrolet	Impala	LT	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Chevrolet	Impala	LTZ	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Chevrolet	Impala	Police	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Chevrolet	Impala	SS	5.3V8	GAS	Downstream	B1S2; OE Equivalent Design
2006	Chevrolet	Impala	LS	3.5V6	FLEX	Downstream	B1S2; OE Equivalent Design
2006	Chevrolet	Impala	LT	3.5V6	FLEX	Downstream	B1S2; OE Equivalent Design
2006	Chevrolet	Corvette	Base	6.0V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2006	Chevrolet	Corvette	Z06	7.0V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2006	Chevrolet	Corvette	Base	6.0V8	GAS	Downstream Left
2006	Chevrolet	Corvette	Z06	7.0V8	GAS	Downstream Left
2006	Chevrolet	Malibu	Maxx SS	3.9V6	GAS	Downstream Right	B1S2; OE Equivalent Design
2006	Chevrolet	Malibu	SS	3.9V6	GAS	Downstream Right	B1S2; OE Equivalent Design
2006	Chevrolet	Uplander	LT	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Chevrolet	Uplander	LS	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Chevrolet	Uplander	Base	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Chevrolet	Uplander	LT	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Chevrolet	Monte Carlo	LS	3.5V6	FLEX	Downstream	B1S2; OE Equivalent Design
2006	Chevrolet	Monte Carlo	LT	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Chevrolet	Monte Carlo	LT	3.5V6	FLEX	Downstream	B1S2; OE Equivalent Design
2006	Chevrolet	Monte Carlo	LTZ	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Chevrolet	Monte Carlo	SS	5.3V8	GAS	Downstream	B1S2; OE Equivalent Design
2006	Pontiac	G6	GTP	3.9V6	GAS	Downstream Right	B1S2; OE Equivalent Design \| Automatic;
2006	Pontiac	Torrent	Base	3.4V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Pontiac	Grand Prix	Base	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Pontiac	Grand Prix	GT	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Pontiac	Grand Prix	GXP	5.3V8	GAS	Downstream	B1S2; OE Equivalent Design
2006	Pontiac	Montana	SV6	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Pontiac	Montana	SV6	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Saturn	Relay	3	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Saturn	Relay	3	3.9V6	GAS	Downstream	B1S2; OE Equivalent Design
2006	Saturn	Relay	2	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Isuzu	Ascender	S	5.3V8	GAS	Downstream Left
2005	Isuzu	Ascender	Limited	5.3V8	GAS	Downstream Left
2005	Isuzu	Ascender	Limited	5.3V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2005	Isuzu	Ascender	LS	5.3V8	GAS	Downstream Left
2005	Isuzu	Ascender	S	5.3V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2005	Isuzu	Ascender	LS	5.3V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2005	Buick	Park Avenue	Base	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Buick	Park Avenue	Ultra	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Buick	Century	Limited	3.1V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Buick	Century	Custom	3.1V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Buick	Century	Special Edition	3.1V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Buick	Rendezvous	CXL	3.4V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Buick	Rendezvous	CX Plus	3.4V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Buick	Rendezvous	CX	3.4V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Buick	LeSabre	Limited	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Buick	LeSabre	Custom	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Buick	Rainier	CXL	5.3V8	GAS	Downstream Left
2005	Buick	Rainier	CXL	5.3V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2005	Buick	Rainier	CXL Plus	5.3V8	GAS	Downstream Left
2005	Buick	Rainier	CXL Plus	5.3V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2005	Buick	Terraza	CX	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Buick	Terraza	CXL	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Buick	LaCrosse	CXL	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Buick	LaCrosse	CX	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Chevrolet	Equinox	LT	3.4V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Chevrolet	Equinox	LS	3.4V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Chevrolet	Corvette	Base	6.0V8	GAS	Downstream Left
2005	Chevrolet	Corvette	Base	6.0V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2005	Chevrolet	Impala	Base	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Chevrolet	Impala	Base	3.4V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Chevrolet	Impala	SS	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Chevrolet	Impala	LS	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Chevrolet	Impala	Police	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Chevrolet	Monte Carlo	LT	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Chevrolet	Monte Carlo	SS	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Chevrolet	Monte Carlo	LS	3.4V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Chevrolet	SSR	Base	6.0V8	GAS	Downstream Left
2005	Chevrolet	SSR	Base	6.0V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2005	Chevrolet	Venture	LT	3.4V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Chevrolet	Venture	Plus	3.4V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Chevrolet	Venture	LS	3.4V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Chevrolet	Uplander	Base	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Chevrolet	Uplander	LT	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Chevrolet	Uplander	LS	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Chevrolet	Trailblazer EXT	LT	5.3V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2005	Chevrolet	Trailblazer EXT	LS	5.3V8	GAS	Downstream Left
2005	Chevrolet	Trailblazer EXT	LT	5.3V8	GAS	Downstream Left
2005	Chevrolet	Trailblazer EXT	LS	5.3V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2005	GMC	Envoy	Denali	5.3V8	GAS	Downstream Left
2005	GMC	Envoy	Denali	5.3V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2005	GMC	Envoy XUV	SLE	5.3V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2005	GMC	Envoy XUV	SLT	5.3V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2005	GMC	Envoy XUV	SLE	5.3V8	GAS	Downstream Left
2005	GMC	Envoy XUV	SLT	5.3V8	GAS	Downstream Left
2005	GMC	Envoy XL	SLT	5.3V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2005	GMC	Envoy XL	Denali	5.3V8	GAS	Downstream Left
2005	GMC	Envoy XL	SLE	5.3V8	GAS	Downstream Left
2005	GMC	Envoy XL	SLE	5.3V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2005	GMC	Envoy XL	SLT	5.3V8	GAS	Downstream Left
2005	GMC	Envoy XL	Denali	5.3V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2005	Pontiac	Aztek	Base	3.4V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Pontiac	Aztek	Rally	3.4V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Pontiac	Grand Prix	GTP	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Pontiac	Grand Prix	Base	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Pontiac	Grand Prix	GXP	5.3V8	GAS	Downstream	B1S2; OE Equivalent Design
2005	Pontiac	Grand Prix	GT	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Pontiac	Montana	SV6	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Pontiac	Montana	Base	3.4V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Pontiac	Bonneville	SLE	3.8V6	GAS	Downstream Left
2005	Pontiac	Bonneville	SE	3.8V6	GAS	Downstream Left
2005	Pontiac	Bonneville	SE	3.8V6	GAS	Downstream Right	B2S2; OE Equivalent Design
2005	Pontiac	Bonneville	SLE	3.8V6	GAS	Downstream Right	B2S2; OE Equivalent Design
2005	Saturn	Relay	3	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Saturn	Relay	2	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2005	Saab	9-7x	Arc	5.3V8	GAS	Downstream Left
2005	Saab	9-7x	Arc	5.3V8	GAS	Downstream Right	B2S2; OE Equivalent Design
2004	Isuzu	Ascender	Limited	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2004	Isuzu	Ascender	Limited	5.3V8	GAS	Downstream Left
2004	Isuzu	Ascender	LS	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2004	Isuzu	Ascender	LS	5.3V8	GAS	Downstream Left
2004	Buick	LeSabre	Limited	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2004	Buick	LeSabre	Custom	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2004	Buick	Park Avenue	Base	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2004	Buick	Park Avenue	Ultra	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2004	Buick	Rainier	CXL	5.3V8	GAS	Downstream Left
2004	Buick	Rainier	CXL Plus	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2004	Buick	Rainier	CXL	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2004	Buick	Rainier	CXL Plus	5.3V8	GAS	Downstream Left
2004	Buick	Regal	LS	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2004	Buick	Regal	GS	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2004	Chevrolet	Impala	LS	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2004	Chevrolet	Impala	Police	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2004	Chevrolet	Impala	Base	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2004	Chevrolet	Impala	SS	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2004	Chevrolet	Monte Carlo	SS	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2004	Chevrolet	SSR	Base	5.3V8	GAS	Downstream Left
2004	Chevrolet	SSR	Base	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2004	Chevrolet	Trailblazer EXT	North Face	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2004	Chevrolet	Trailblazer EXT	LS	5.3V8	GAS	Downstream Left
2004	Chevrolet	Trailblazer EXT	LT	5.3V8	GAS	Downstream Left
2004	Chevrolet	Trailblazer EXT	LS	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2004	Chevrolet	Trailblazer EXT	LT	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2004	Chevrolet	Trailblazer EXT	North Face	5.3V8	GAS	Downstream Left
2004	GMC	Envoy XUV	SLE	5.3V8	GAS	Downstream Left
2004	GMC	Envoy XUV	SLE	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2004	GMC	Envoy XUV	SLT	5.3V8	GAS	Downstream Left
2004	GMC	Envoy XUV	SLT	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2004	GMC	Envoy XL	SLE	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2004	GMC	Envoy XL	SLT	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2004	GMC	Envoy XL	SLT	5.3V8	GAS	Downstream Left
2004	GMC	Envoy XL	SLE	5.3V8	GAS	Downstream Left
2004	Pontiac	Grand Prix	GTP	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2004	Pontiac	Grand Prix	GT1	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2004	Pontiac	Grand Prix	GT2	3.8V6	GAS	Downstream	B1S2; OE Equivalent Design
2004	Pontiac	Bonneville	SE	3.8V6	GAS	Downstream Left
2004	Pontiac	Bonneville	SE	3.8V6	GAS	Downstream Right	B2S2; OE Equivalent Design
2004	Pontiac	Bonneville	SLE	3.8V6	GAS	Downstream Left
2004	Pontiac	Bonneville	SLE	3.8V6	GAS	Downstream Right	B2S2; OE Equivalent Design
2003	Isuzu	Ascender	Base	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2003	Isuzu	Ascender	Limited	5.3V8	GAS	Downstream Left
2003	Isuzu	Ascender	Limited	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2003	Isuzu	Ascender	LS	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2003	Isuzu	Ascender	Base	5.3V8	GAS	Downstream Left
2003	Isuzu	Ascender	LS	5.3V8	GAS	Downstream Left
2003	Chevrolet	SSR	Base	5.3V8	GAS	Downstream Left
2003	Chevrolet	SSR	Base	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2003	Chevrolet	Trailblazer EXT	North Face	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2003	Chevrolet	Trailblazer EXT	LS	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2003	Chevrolet	Trailblazer EXT	LT	5.3V8	GAS	Downstream Left
2003	Chevrolet	Trailblazer EXT	LT	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2003	Chevrolet	Trailblazer EXT	North Face	5.3V8	GAS	Downstream Left
2003	Chevrolet	Trailblazer EXT	LS	5.3V8	GAS	Downstream Left
2003	GMC	Envoy XL	SLT	5.3V8	GAS	Downstream Left
2003	GMC	Envoy XL	SLT	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2003	GMC	Envoy XL	SLE	5.3V8	GAS	Downstream Right	B2S2; OE MFR: NTK
2003	GMC	Envoy XL	SLE	5.3V8	GAS	Downstream Left
2003	Oldsmobile	Aurora	Base	4.0V8	GAS	Downstream	B1S2; OE Equivalent Design
2002	Chevrolet	Astro	Base	4.3V6	GAS	Upstream Left	B1S1; OE Equivalent Design
2002	Chevrolet	Astro	LT	4.3V6	GAS	Upstream Left	B1S1; OE Equivalent Design
2002	Chevrolet	Astro	LS	4.3V6	GAS	Upstream Left	B1S1; OE Equivalent Design
2002	GMC	Safari	SLE	4.3V6	GAS	Upstream Left	B1S1; OE Equivalent Design
2002	GMC	Safari	SLT	4.3V6	GAS	Upstream Left	B1S1; OE Equivalent Design
2002	GMC	Safari	SL	4.3V6	GAS	Upstream Left	B1S1; OE Equivalent Design
2002	Oldsmobile	Aurora	Base	4.0V8	GAS	Downstream	B1S2; OE Equivalent Design
2002	Oldsmobile	Aurora	Base	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2002	Oldsmobile	Intrigue	GL	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2002	Oldsmobile	Intrigue	GLS	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2002	Oldsmobile	Intrigue	GX	3.5V6	GAS	Downstream	B1S2; OE Equivalent Design
2001	Chevrolet	Astro	LT	4.3V6	GAS	Upstream Left	B1S1; OE Equivalent Design
2001	Chevrolet	Astro	Base	4.3V6	GAS	Upstream Left	B1S1; OE Equivalent Design
2001	Chevrolet	Astro	LS	4.3V6	GAS	Upstream Left	B1S1; OE Equivalent Design
2001	GMC	Safari	SLE	4.3V6	GAS	Upstream Left	B1S1; OE Equivalent Design
2001	GMC	Safari	SL	4.3V6	GAS	Upstream Left	B1S1; OE Equivalent Design
2001	GMC	Safari	SLT	4.3V6	GAS	Upstream Left	B1S1; OE Equivalent Design

Product info

The NTK Oxygen Sensor part number 21048 is a high-quality replacement part designed to deliver reliable performance for Buick, Chevrolet, GMC, and Isuzu vehicles. This part type is also compatible with other part numbers 81, 256, 716, and 308.

Designed to meet or exceed OEM specifications, this oxygen sensor is built to last and is made from high-quality materials. The sensor measures the oxygen content in the exhaust gases and provides accurate data to the engine control unit (ECU), which then regulates the fuel and air mixture in the engine. This helps to improve fuel efficiency and reduce harmful emissions.

The NTK Oxygen Sensor part number 21048 is easy to install and comes with everything you need to replace your existing sensor. It also features a high-temperature ceramic element that is designed to last longer than other types of sensors on the market.

One of the key benefits of this oxygen sensor is that it helps to improve the overall performance of your vehicle. By providing accurate data to the ECU, it helps to ensure that your engine is running at its best, which can help to improve acceleration, reduce engine misfires, and improve overall drivability.

In addition, the NTK Oxygen Sensor part number 21048 is a cost-effective replacement option that can help save you money over the long-term. By improving fuel efficiency and reducing emissions, this sensor can help to lower your overall operating costs and reduce the environmental impact of your vehicle.

Overall, if you are in need of a high-quality replacement oxygen sensor for your Buick, Chevrolet, GMC, or Isuzu vehicle, the NTK Oxygen Sensor part number 21048 is a great choice. With its reliable performance, easy installation, and cost-effective price point, this sensor is sure to provide the performance and value you are looking for.

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	13.0000

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

Newparts.com is your go to store for all parts and accessories at the best price and delivered quickly. Every order we ship receives a tracking number so that you can watch it all the way until it reaches your door. We only ship using the major shipping carriers like FedEx, UPS and USPS to ensure quick and safe delivery of your new car parts order.

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 21048 – NTK

Delivery Info

Returns Info

FREE SHIPPING