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  2. Auto Parts
  3. Emission Control
  4. Sensors
  5. Oxygen Sensor
  6. NGK 21573

NGK 21573 Oxygen Sensor

NGK

 
Brand:NGK
Part Number: 21573
UPC: 00087295215739
Weight: 0.11 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

Get the NGK 21573 Oxygen Sensor for your vehicle. Buy now and secure your purchase online!

Select a vehicle to narrow NGK 21573 Oxygen Sensor fitment info!

Last Updated: 11/28/2017

Years Vehicle Per Vehicle Fit NotesFitment Notes

2007

 

2006

 

2005

 

2007

 

2006

 

2005

 
Buick Allure

3.8L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Buick Allure



3.8L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2005

 

2005

 
Buick Century

3.1L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Buick Century



3.1L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2007

 

2006

 

2005

 

2007

 

2006

 

2005

 
Buick LaCrosse

3.8L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Buick LaCrosse



3.8L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2005

 

2004

 

2005

 

2004

 
Buick LeSabre

3.8L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Buick LeSabre



3.8L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2008

 

2007

 

2006

 

2008

 

2007

 

2006

 
Buick Lucerne

3.8L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Buick Lucerne



3.8L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2005

 

2004

 

2005

 

2004

 
Buick Park Avenue

3.8L V6 Gas OHV,
3.8L V6 Gas OHV Supercharged
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Buick Park Avenue



3.8L V6 Gas OHV,
3.8L V6 Gas OHV Supercharged OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2005

 

2005

 
Buick Rainier

5.3L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Left
OE Replacement
 

Buick Rainier



5.3L V8 Gas OHV OE Type Oxygen Sensor
Downstream Left
OE Replacement

1 Per Vehicle

2005

 

2005

 
Buick Rainier

5.3L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Right
OE Replacement
 

Buick Rainier



5.3L V8 Gas OHV OE Type Oxygen Sensor
Downstream Right
OE Replacement

1 Per Vehicle

2004

 

2004

 
Buick Regal

3.8L V6 Gas OHV,
3.8L V6 Gas OHV Supercharged
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Buick Regal



3.8L V6 Gas OHV,
3.8L V6 Gas OHV Supercharged OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2007

 

2006

 

2007

 

2006

 
Buick Rendezvous

3.5L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Buick Rendezvous



3.5L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2005

 

2005

 
Buick Rendezvous

3.4L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Buick Rendezvous



3.4L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2007

 

2007

 
Buick Terraza

3.9L V6 Flex OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Buick Terraza



3.9L V6 Flex OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2007

 

2006

 

2007

 

2006

 
Buick Terraza

3.9L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Buick Terraza



3.9L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2006

 

2005

 

2006

 

2005

 
Buick Terraza

3.5L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Buick Terraza



3.5L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2002

 

2001

 

2000

 

2002

 

2001

 

2000

 
Chevrolet Astro

4.3L V6 Gas OHV
1
 
OE Type Oxygen Sensor
OE Replacement
Upstream Left
 

Chevrolet Astro



4.3L V6 Gas OHV OE Type Oxygen Sensor
OE Replacement
Upstream Left
1 Per Vehicle

2007

 

2007

 
Chevrolet Corvette

7.0L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Right
OE Replacement
 

Chevrolet Corvette



7.0L V8 Gas OHV OE Type Oxygen Sensor
Downstream Right
OE Replacement

1 Per Vehicle

2007

 

2006

 

2005

 

2007

 

2006

 

2005

 
Chevrolet Corvette

6.0L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Left
OE Replacement
 

Chevrolet Corvette



6.0L V8 Gas OHV OE Type Oxygen Sensor
Downstream Left
OE Replacement

1 Per Vehicle

2006

 

2006

 
Chevrolet Corvette

7.0L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Left
OE Replacement
 

Chevrolet Corvette



7.0L V8 Gas OHV OE Type Oxygen Sensor
Downstream Left
OE Replacement

1 Per Vehicle

2005

 

2005

 
Chevrolet Corvette

6.0L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Right
OE Replacement
 

Chevrolet Corvette



6.0L V8 Gas OHV OE Type Oxygen Sensor
Downstream Right
OE Replacement

1 Per Vehicle

2007

 

2006

 

2005

 

2007

 

2006

 

2005

 
Chevrolet Equinox

3.4L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Chevrolet Equinox



3.4L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2007

 

2006

 

2007

 

2006

 
Chevrolet Impala

3.5L V6 Flex OHV,
3.5L V6 Gas OHV,
3.9L V6 Gas OHV,
5.3L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Chevrolet Impala



3.5L V6 Flex OHV,
3.5L V6 Gas OHV,
3.9L V6 Gas OHV,
5.3L V8 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2005

 

2005

 
Chevrolet Impala

3.4L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Chevrolet Impala



3.4L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2005

 

2004

 

2005

 

2004

 
Chevrolet Impala

3.8L V6 Gas OHV,
3.8L V6 Gas OHV Supercharged
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Chevrolet Impala



3.8L V6 Gas OHV,
3.8L V6 Gas OHV Supercharged OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2007

 

2006

 

2007

 

2006

 
Chevrolet Malibu

3.9L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Right
OE Replacement
 

Chevrolet Malibu



3.9L V6 Gas OHV OE Type Oxygen Sensor
Downstream Right
OE Replacement

1 Per Vehicle

2007

 

2006

 

2007

 

2006

 
Chevrolet Monte Carlo

3.5L V6 Flex OHV,
3.5L V6 Gas OHV,
5.3L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Chevrolet Monte Carlo



3.5L V6 Flex OHV,
3.5L V6 Gas OHV,
5.3L V8 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2006

 

2006

 
Chevrolet Monte Carlo

3.9L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Chevrolet Monte Carlo



3.9L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2005

 

2005

 
Chevrolet Monte Carlo

3.4L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Chevrolet Monte Carlo



3.4L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2005

 

2004

 

2005

 

2004

 
Chevrolet Monte Carlo

3.8L V6 Gas OHV,
3.8L V6 Gas OHV Supercharged
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Chevrolet Monte Carlo



3.8L V6 Gas OHV,
3.8L V6 Gas OHV Supercharged OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2005

 

2005

 
Chevrolet SSR

6.0L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Right
OE Replacement
 

Chevrolet SSR



6.0L V8 Gas OHV OE Type Oxygen Sensor
Downstream Right
OE Replacement

1 Per Vehicle

2005

 

2005

 
Chevrolet Trailblazer EXT

5.3L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Left
OE Replacement
 

Chevrolet Trailblazer EXT



5.3L V8 Gas OHV OE Type Oxygen Sensor
Downstream Left
OE Replacement

1 Per Vehicle

2005

 

2005

 
Chevrolet Trailblazer EXT

5.3L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Right
OE Replacement
 

Chevrolet Trailblazer EXT



5.3L V8 Gas OHV OE Type Oxygen Sensor
Downstream Right
OE Replacement

1 Per Vehicle

2007

 

2007

 
Chevrolet Uplander

3.9L V6 Flex OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Chevrolet Uplander



3.9L V6 Flex OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2007

 

2006

 

2007

 

2006

 
Chevrolet Uplander

3.9L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Chevrolet Uplander



3.9L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2006

 

2005

 

2006

 

2005

 
Chevrolet Uplander

3.5L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Chevrolet Uplander



3.5L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2005

 

2005

 
Chevrolet Venture

3.4L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Chevrolet Venture



3.4L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2005

 

2005

 
GMC Envoy

5.3L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Left
OE Replacement
 

GMC Envoy



5.3L V8 Gas OHV OE Type Oxygen Sensor
Downstream Left
OE Replacement

1 Per Vehicle

2005

 

2005

 
GMC Envoy

5.3L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Right
OE Replacement
 

GMC Envoy



5.3L V8 Gas OHV OE Type Oxygen Sensor
Downstream Right
OE Replacement

1 Per Vehicle

2005

 

2005

 
GMC Envoy XL

5.3L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Left
OE Replacement
 

GMC Envoy XL



5.3L V8 Gas OHV OE Type Oxygen Sensor
Downstream Left
OE Replacement

1 Per Vehicle

2005

 

2005

 
GMC Envoy XL

5.3L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Right
OE Replacement
 

GMC Envoy XL



5.3L V8 Gas OHV OE Type Oxygen Sensor
Downstream Right
OE Replacement

1 Per Vehicle

2005

 

2005

 
GMC Envoy XUV

5.3L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Left
OE Replacement
 

GMC Envoy XUV



5.3L V8 Gas OHV OE Type Oxygen Sensor
Downstream Left
OE Replacement

1 Per Vehicle

2005

 

2005

 
GMC Envoy XUV

5.3L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Right
OE Replacement
 

GMC Envoy XUV



5.3L V8 Gas OHV OE Type Oxygen Sensor
Downstream Right
OE Replacement

1 Per Vehicle

2002

 

2001

 

2000

 

2002

 

2001

 

2000

 
GMC Safari

4.3L V6 Gas OHV
1
 
OE Type Oxygen Sensor
OE Replacement
Upstream Left
 

GMC Safari



4.3L V6 Gas OHV OE Type Oxygen Sensor
OE Replacement
Upstream Left
1 Per Vehicle

2005

 

2005

 
Isuzu Ascender

5.3L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Left
OE Replacement
 

Isuzu Ascender



5.3L V8 Gas OHV OE Type Oxygen Sensor
Downstream Left
OE Replacement

1 Per Vehicle

2005

 

2005

 
Isuzu Ascender

5.3L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Right
OE Replacement
 

Isuzu Ascender



5.3L V8 Gas OHV OE Type Oxygen Sensor
Downstream Right
OE Replacement

1 Per Vehicle

2003

 

2002

 

2001

 

2003

 

2002

 

2001

 
Oldsmobile Aurora

4.0L V8 Gas DOHC
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Oldsmobile Aurora



4.0L V8 Gas DOHC OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2002

 

2001

 

2002

 

2001

 
Oldsmobile Aurora

3.5L V6 Gas DOHC
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Oldsmobile Aurora



3.5L V6 Gas DOHC OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2002

 

2001

 

2000

 

2002

 

2001

 

2000

 
Oldsmobile Intrigue

3.5L V6 Gas DOHC
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Oldsmobile Intrigue



3.5L V6 Gas DOHC OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2005

 

2005

 
Pontiac Aztek

3.4L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Pontiac Aztek



3.4L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2005

 

2004

 

2005

 

2004

 
Pontiac Bonneville

3.8L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Right
OE Replacement
 

Pontiac Bonneville



3.8L V6 Gas OHV OE Type Oxygen Sensor
Downstream Right
OE Replacement

1 Per Vehicle

2004

 

2004

 
Pontiac Bonneville

3.8L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Left
OE Replacement
 

Pontiac Bonneville



3.8L V6 Gas OHV OE Type Oxygen Sensor
Downstream Left
OE Replacement

1 Per Vehicle

2007

 

2007

 
Pontiac G6

3.5L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Right
OE Replacement
 

Pontiac G6



3.5L V6 Gas OHV OE Type Oxygen Sensor
Downstream Right
OE Replacement

1 Per Vehicle

2007

 

2006

 

2007

 

2006

 
Pontiac G6

3.9L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Automatic Trans
Downstream Right
OE Replacement
 

Pontiac G6



3.9L V6 Gas OHV OE Type Oxygen Sensor
Automatic Trans
Downstream Right
OE Replacement
1 Per Vehicle

2007

 

2006

 

2005

 

2007

 

2006

 

2005

 
Pontiac Grand Prix

5.3L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Pontiac Grand Prix



5.3L V8 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2007

 

2006

 

2005

 

2004

 

2007

 

2006

 

2005

 

2004

 
Pontiac Grand Prix

3.8L V6 Gas OHV,
3.8L V6 Gas OHV Supercharged
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Pontiac Grand Prix



3.8L V6 Gas OHV,
3.8L V6 Gas OHV Supercharged OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2007

 

2006

 

2007

 

2006

 
Pontiac Montana

3.9L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Pontiac Montana



3.9L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2006

 

2005

 

2006

 

2005

 
Pontiac Montana

3.5L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Pontiac Montana



3.5L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2005

 

2005

 
Pontiac Montana

3.4L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Pontiac Montana



3.4L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2007

 

2006

 

2007

 

2006

 
Pontiac Torrent

3.4L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Pontiac Torrent



3.4L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2005

 

2005

 
Saab 9-7x

5.3L V8 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Left
OE Replacement
 

Saab 9-7x



5.3L V8 Gas OHV OE Type Oxygen Sensor
Downstream Left
OE Replacement

1 Per Vehicle

2007

 

2007

 
Saturn Aura

3.5L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream Right
OE Replacement
 

Saturn Aura



3.5L V6 Gas OHV OE Type Oxygen Sensor
Downstream Right
OE Replacement

1 Per Vehicle

2007

 

2007

 
Saturn Relay

3.9L V6 Flex OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Saturn Relay



3.9L V6 Flex OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2007

 

2006

 

2007

 

2006

 
Saturn Relay

3.9L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Saturn Relay



3.9L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle

2006

 

2005

 

2006

 

2005

 
Saturn Relay

3.5L V6 Gas OHV
1
 
OE Type Oxygen Sensor
Downstream
OE Replacement
 

Saturn Relay



3.5L V6 Gas OHV OE Type Oxygen Sensor
Downstream
OE Replacement

1 Per Vehicle