Brands Vehicles
Lowest Prices
Free Returns
Online Since 2009
JOIN GEARS TO SAVE 5%
Shop All Brands Shop All Vehicles

  2. Auto Parts
  3. Emission Control
  4. Sensors
  5. Oxygen Sensor
  6. NGK 21539

NGK 21539 Oxygen Sensor

NGK 21539 Oxygen Sensor

NGK
Brand:NGK
Part Number: 21539
UPC: 00087295215395
Weight: 0.11 lbs
Condition:New



On Sale:

$47.98

Availability:
15 in Stock
Warehouse: US-4
Quantity:

Product Information

Description:

Get the NGK 21539 Oxygen Sensor for your vehicle. Buy now and secure your purchase online!

Select a vehicle to narrow NGK 21539 Oxygen Sensor fitment info!

Last Updated: 08/11/2024

Years Vehicle Per Vehicle Position Fit NotesFitment Notes

2000

 

1999

 

1998

 

1997

 

2000

 

1999

 

1998

 

1997

 
Buick Century

3.1L V6 Gas OHV
1
 
Upstream
 
Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design
 

Buick Century



3.1L V6 Gas OHV

Upstream Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design

1 Per Vehicle

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 
Buick LeSabre

3.8L V6 Gas OHV
1
 
Upstream
 
Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design
 

Buick LeSabre



3.8L V6 Gas OHV

Upstream Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design

1 Per Vehicle

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 
Buick Park Avenue

3.8L V6 Gas OHV,
3.8L V6 Gas OHV Supercharged
1
 
Upstream
 
Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design
 

Buick Park Avenue



3.8L V6 Gas OHV,
3.8L V6 Gas OHV Supercharged

Upstream Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design

1 Per Vehicle

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 
Buick Regal

3.8L V6 Gas OHV,
3.8L V6 Gas OHV Supercharged
1
 
Upstream
 
Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design
 

Buick Regal



3.8L V6 Gas OHV,
3.8L V6 Gas OHV Supercharged

Upstream Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design

1 Per Vehicle

1999

 

1998

 

1997

 

1999

 

1998

 

1997

 
Buick Riviera

3.8L V6 Gas OHV Supercharged
1
 
Upstream
 
Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design
 

Buick Riviera



3.8L V6 Gas OHV Supercharged

Upstream Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design

1 Per Vehicle

1997

 

1997

 
Buick Riviera

3.8L V6 Gas OHV
1
 
Upstream
 
Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design
 

Buick Riviera



3.8L V6 Gas OHV

Upstream Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design

1 Per Vehicle

1998

 

1997

 

1998

 

1997

 
Buick Skylark

3.1L V6 Gas OHV
1
 
Upstream
 
Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design
 

Buick Skylark



3.1L V6 Gas OHV

Upstream Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design

1 Per Vehicle

1999

 

1999

 
Cadillac DeVille

4.6L V8 Gas DOHC
1
 
Upstream Front
 
Direct Fit Oxygen Sensor
B2S1
OE Equivalent Design
 

Cadillac DeVille



4.6L V8 Gas DOHC

Upstream Front Direct Fit Oxygen Sensor
B2S1
OE Equivalent Design

1 Per Vehicle

1999

 

1999

 
Cadillac DeVille

4.6L V8 Gas DOHC
1
 
Upstream Rear
 
Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design
 

Cadillac DeVille



4.6L V8 Gas DOHC

Upstream Rear Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design

1 Per Vehicle

1998

 

1998

 
Cadillac DeVille

4.6L V8 Gas DOHC
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in Front Manifold
B2S1
1st Design
Equipped w/4 Oxygen Sensors
OE Equivalent Design
 

Cadillac DeVille



4.6L V8 Gas DOHC

Upstream Direct Fit Oxygen Sensor
Located in Front Manifold
B2S1
1st Design
Equipped w/4 Oxygen Sensors
OE Equivalent Design

1 Per Vehicle

1998

 

1998

 
Cadillac DeVille

4.6L V8 Gas DOHC
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in Rear Manifold
B1S1
1st Design
Equipped w/4 Oxygen Sensors
OE Equivalent Design
 

Cadillac DeVille



4.6L V8 Gas DOHC

Upstream Direct Fit Oxygen Sensor
Located in Rear Manifold
B1S1
1st Design
Equipped w/4 Oxygen Sensors
OE Equivalent Design

1 Per Vehicle

1998

 

1998

 
Cadillac DeVille

4.6L V8 Gas DOHC
1
 
Upstream Front
 
Direct Fit Oxygen Sensor
B2S1
2nd Design
Equipped w/3 Oxygen Sensors
OE Equivalent Design
 

Cadillac DeVille



4.6L V8 Gas DOHC

Upstream Front Direct Fit Oxygen Sensor
B2S1
2nd Design
Equipped w/3 Oxygen Sensors
OE Equivalent Design

1 Per Vehicle

1998

 

1998

 
Cadillac DeVille

4.6L V8 Gas DOHC
1
 
Upstream Rear
 
Direct Fit Oxygen Sensor
B1S1
2nd Design
Equipped w/3 Oxygen Sensors
OE Equivalent Design
 

Cadillac DeVille



4.6L V8 Gas DOHC

Upstream Rear Direct Fit Oxygen Sensor
B1S1
2nd Design
Equipped w/3 Oxygen Sensors
OE Equivalent Design

1 Per Vehicle

1997

 

1996

 

1997

 

1996

 
Cadillac DeVille

4.6L V8 Gas DOHC
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in Front Manifold
B2S1
OE Equivalent Design
 

Cadillac DeVille



4.6L V8 Gas DOHC

Upstream Direct Fit Oxygen Sensor
Located in Front Manifold
B2S1
OE Equivalent Design

1 Per Vehicle

1997

 

1996

 

1997

 

1996

 
Cadillac DeVille

4.6L V8 Gas DOHC
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in Rear Manifold
B1S1
OE Equivalent Design
 

Cadillac DeVille



4.6L V8 Gas DOHC

Upstream Direct Fit Oxygen Sensor
Located in Rear Manifold
B1S1
OE Equivalent Design

1 Per Vehicle

1999

 

1999

 
Cadillac Eldorado

4.6L V8 Gas DOHC
1
 
Upstream Front
 
Direct Fit Oxygen Sensor
B2S1
OE Equivalent Design
 

Cadillac Eldorado



4.6L V8 Gas DOHC

Upstream Front Direct Fit Oxygen Sensor
B2S1
OE Equivalent Design

1 Per Vehicle

1999

 

1999

 
Cadillac Eldorado

4.6L V8 Gas DOHC
1
 
Upstream Rear
 
Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design
 

Cadillac Eldorado



4.6L V8 Gas DOHC

Upstream Rear Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design

1 Per Vehicle

1998

 

1998

 
Cadillac Eldorado

4.6L V8 Gas DOHC
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in Front Manifold
B2S1
1st Design
Equipped w/4 Oxygen Sensors
OE Equivalent Design
 

Cadillac Eldorado



4.6L V8 Gas DOHC

Upstream Direct Fit Oxygen Sensor
Located in Front Manifold
B2S1
1st Design
Equipped w/4 Oxygen Sensors
OE Equivalent Design

1 Per Vehicle

1998

 

1998

 
Cadillac Eldorado

4.6L V8 Gas DOHC
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in Rear Manifold
B1S1
1st Design
Equipped w/4 Oxygen Sensors
OE Equivalent Design
 

Cadillac Eldorado



4.6L V8 Gas DOHC

Upstream Direct Fit Oxygen Sensor
Located in Rear Manifold
B1S1
1st Design
Equipped w/4 Oxygen Sensors
OE Equivalent Design

1 Per Vehicle

1998

 

1998

 
Cadillac Eldorado

4.6L V8 Gas DOHC
1
 
Upstream Front
 
Direct Fit Oxygen Sensor
B2S1
2nd Design
Equipped w/3 Oxygen Sensors
OE Equivalent Design
 

Cadillac Eldorado



4.6L V8 Gas DOHC

Upstream Front Direct Fit Oxygen Sensor
B2S1
2nd Design
Equipped w/3 Oxygen Sensors
OE Equivalent Design

1 Per Vehicle

1998

 

1998

 
Cadillac Eldorado

4.6L V8 Gas DOHC
1
 
Upstream Rear
 
Direct Fit Oxygen Sensor
B1S1
2nd Design
Equipped w/3 Oxygen Sensors
OE Equivalent Design
 

Cadillac Eldorado



4.6L V8 Gas DOHC

Upstream Rear Direct Fit Oxygen Sensor
B1S1
2nd Design
Equipped w/3 Oxygen Sensors
OE Equivalent Design

1 Per Vehicle

1997

 

1996

 

1997

 

1996

 
Cadillac Eldorado

4.6L V8 Gas DOHC
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in Front Manifold
B2S1
OE Equivalent Design
 

Cadillac Eldorado



4.6L V8 Gas DOHC

Upstream Direct Fit Oxygen Sensor
Located in Front Manifold
B2S1
OE Equivalent Design

1 Per Vehicle

1997

 

1996

 

1997

 

1996

 
Cadillac Eldorado

4.6L V8 Gas DOHC
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in Rear Manifold
B1S1
OE Equivalent Design
 

Cadillac Eldorado



4.6L V8 Gas DOHC

Upstream Direct Fit Oxygen Sensor
Located in Rear Manifold
B1S1
OE Equivalent Design

1 Per Vehicle

2002

 

2002

 
Cadillac Escalade

5.3L V8 Gas OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
Exc. Canada Built
OE Equivalent Design
 

Cadillac Escalade



5.3L V8 Gas OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
Exc. Canada Built
OE Equivalent Design

1 Per Vehicle

2002

 

2002

 
Cadillac Escalade

5.3L V8 Gas OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
Exc. Canada Built
OE Equivalent Design
 

Cadillac Escalade



5.3L V8 Gas OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
Exc. Canada Built
OE Equivalent Design

1 Per Vehicle

2002

 

2002

 
Cadillac Escalade

6.0L V8 Gas OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Cadillac Escalade



6.0L V8 Gas OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

2002

 

2002

 
Cadillac Escalade

6.0L V8 Gas OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design
 

Cadillac Escalade



6.0L V8 Gas OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design

1 Per Vehicle

2000

 

1999

 

2000

 

1999

 
Cadillac Escalade

5.7L V8 Gas OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Cadillac Escalade



5.7L V8 Gas OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

2000

 

1999

 

2000

 

1999

 
Cadillac Escalade

5.7L V8 Gas OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design
 

Cadillac Escalade



5.7L V8 Gas OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design

1 Per Vehicle

2002

 

2002

 
Cadillac Escalade EXT

6.0L V8 Gas OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Cadillac Escalade EXT



6.0L V8 Gas OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

2002

 

2002

 
Cadillac Escalade EXT

6.0L V8 Gas OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design
 

Cadillac Escalade EXT



6.0L V8 Gas OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design

1 Per Vehicle

1999

 

1999

 
Cadillac Seville

4.6L V8 Gas DOHC
1
 
Upstream Front
 
Direct Fit Oxygen Sensor
B2S1
OE Equivalent Design
 

Cadillac Seville



4.6L V8 Gas DOHC

Upstream Front Direct Fit Oxygen Sensor
B2S1
OE Equivalent Design

1 Per Vehicle

1999

 

1999

 
Cadillac Seville

4.6L V8 Gas DOHC
1
 
Upstream Rear
 
Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design
 

Cadillac Seville



4.6L V8 Gas DOHC

Upstream Rear Direct Fit Oxygen Sensor
B1S1
OE Equivalent Design

1 Per Vehicle

1998

 

1998

 
Cadillac Seville

4.6L V8 Gas DOHC
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in Front Manifold
B2S1
1st Design
Equipped w/4 Oxygen Sensors
OE Equivalent Design
 

Cadillac Seville



4.6L V8 Gas DOHC

Upstream Direct Fit Oxygen Sensor
Located in Front Manifold
B2S1
1st Design
Equipped w/4 Oxygen Sensors
OE Equivalent Design

1 Per Vehicle

1998

 

1998

 
Cadillac Seville

4.6L V8 Gas DOHC
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in Rear Manifold
B1S1
1st Design
Equipped w/4 Oxygen Sensors
OE Equivalent Design
 

Cadillac Seville



4.6L V8 Gas DOHC

Upstream Direct Fit Oxygen Sensor
Located in Rear Manifold
B1S1
1st Design
Equipped w/4 Oxygen Sensors
OE Equivalent Design

1 Per Vehicle

1998

 

1998

 
Cadillac Seville

4.6L V8 Gas DOHC
1
 
Upstream Front
 
Direct Fit Oxygen Sensor
B2S1
2nd Design
Equipped w/3 Oxygen Sensors
OE Equivalent Design
 

Cadillac Seville



4.6L V8 Gas DOHC

Upstream Front Direct Fit Oxygen Sensor
B2S1
2nd Design
Equipped w/3 Oxygen Sensors
OE Equivalent Design

1 Per Vehicle

1998

 

1998

 
Cadillac Seville

4.6L V8 Gas DOHC
1
 
Upstream Rear
 
Direct Fit Oxygen Sensor
B1S1
2nd Design
Equipped w/3 Oxygen Sensors
OE Equivalent Design
 

Cadillac Seville



4.6L V8 Gas DOHC

Upstream Rear Direct Fit Oxygen Sensor
B1S1
2nd Design
Equipped w/3 Oxygen Sensors
OE Equivalent Design

1 Per Vehicle

1997

 

1996

 

1997

 

1996

 
Cadillac Seville

4.6L V8 Gas DOHC
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in Front Manifold
B2S1
OE Equivalent Design
 

Cadillac Seville



4.6L V8 Gas DOHC

Upstream Direct Fit Oxygen Sensor
Located in Front Manifold
B2S1
OE Equivalent Design

1 Per Vehicle

1997

 

1996

 

1997

 

1996

 
Cadillac Seville

4.6L V8 Gas DOHC
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in Rear Manifold
B1S1
OE Equivalent Design
 

Cadillac Seville



4.6L V8 Gas DOHC

Upstream Direct Fit Oxygen Sensor
Located in Rear Manifold
B1S1
OE Equivalent Design

1 Per Vehicle

1997

 

1997

 
Chevrolet Astro

4.3L V6 Gas OHV
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in LH Manifold
B1S1
OE Equivalent Design
 

Chevrolet Astro



4.3L V6 Gas OHV

Upstream Direct Fit Oxygen Sensor
Located in LH Manifold
B1S1
OE Equivalent Design

1 Per Vehicle

1997

 

1996

 

1997

 

1996

 
Chevrolet Astro

4.3L V6 Gas OHV
1
 
Downstream
 
Direct Fit Oxygen Sensor
Located After Catalyst
B1S3
OE Equivalent Design
 

Chevrolet Astro



4.3L V6 Gas OHV

Downstream Direct Fit Oxygen Sensor
Located After Catalyst
B1S3
OE Equivalent Design

1 Per Vehicle

1996

 

1996

 
Chevrolet Astro

4.3L V6 Gas OHV
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in Exhaust Pipe Y Before Catalyst
B1S2
OE Equivalent Design
 

Chevrolet Astro



4.3L V6 Gas OHV

Upstream Direct Fit Oxygen Sensor
Located in Exhaust Pipe Y Before Catalyst
B1S2
OE Equivalent Design

1 Per Vehicle

2002

 

2002

 
Chevrolet Avalanche 1500

5.3L V8 Gas OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
Exc. Canada Built
OE Equivalent Design
 

Chevrolet Avalanche 1500



5.3L V8 Gas OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
Exc. Canada Built
OE Equivalent Design

1 Per Vehicle

2002

 

2002

 
Chevrolet Avalanche 1500

5.3L V8 Gas OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
Exc. Canada Built
OE Equivalent Design
 

Chevrolet Avalanche 1500



5.3L V8 Gas OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
Exc. Canada Built
OE Equivalent Design

1 Per Vehicle

1999

 

1998

 

1999

 

1998

 
Chevrolet C1500

5.0L V8 Gas OHV
1
 
Downstream
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Chevrolet C1500



5.0L V8 Gas OHV

Downstream Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1999

 

1998

 

1997

 

1996

 
Chevrolet C1500

5.7L V8 Gas OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Chevrolet C1500



5.7L V8 Gas OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1999

 

1998

 

1997

 

1996

 
Chevrolet C1500

5.7L V8 Gas OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design
 

Chevrolet C1500



5.7L V8 Gas OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design

1 Per Vehicle

1998

 

1998

 
Chevrolet C1500

4.3L V6 Gas OHV
1
 
Downstream
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Chevrolet C1500



4.3L V6 Gas OHV

Downstream Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

1997

 

1996

 

1997

 

1996

 
Chevrolet C1500

4.3L V6 Gas OHV,
5.0L V8 Gas OHV
1
 
Downstream
 
Direct Fit Oxygen Sensor
Located After Catalyst
B1S3
OE Equivalent Design
 

Chevrolet C1500



4.3L V6 Gas OHV,
5.0L V8 Gas OHV

Downstream Direct Fit Oxygen Sensor
Located After Catalyst
B1S3
OE Equivalent Design

1 Per Vehicle

1997

 

1996

 

1997

 

1996

 
Chevrolet C1500

4.3L V6 Gas OHV,
5.0L V8 Gas OHV
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in Exhaust Pipe Y Before Catalyst
B1S2
OE Equivalent Design
 

Chevrolet C1500



4.3L V6 Gas OHV,
5.0L V8 Gas OHV

Upstream Direct Fit Oxygen Sensor
Located in Exhaust Pipe Y Before Catalyst
B1S2
OE Equivalent Design

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1999

 

1998

 

1997

 

1996

 
Chevrolet C1500 Suburban

5.7L V8 Gas OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Chevrolet C1500 Suburban



5.7L V8 Gas OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1999

 

1998

 

1997

 

1996

 
Chevrolet C1500 Suburban

5.7L V8 Gas OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design
 

Chevrolet C1500 Suburban



5.7L V8 Gas OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design

1 Per Vehicle

2000

 

2000

 
Chevrolet C2500

7.4L V8 Gas OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
Federal Emissions
OE Equivalent Design
 

Chevrolet C2500



7.4L V8 Gas OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
Federal Emissions
OE Equivalent Design

1 Per Vehicle

2000

 

2000

 
Chevrolet C2500

7.4L V8 Gas OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
Federal Emissions
OE Equivalent Design
 

Chevrolet C2500



7.4L V8 Gas OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
Federal Emissions
OE Equivalent Design

1 Per Vehicle

2000

 

1999

 

1998

 

2000

 

1999

 

1998

 
Chevrolet C2500

5.7L V8 CNG OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Chevrolet C2500



5.7L V8 CNG OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

2000

 

1999

 

1998

 

2000

 

1999

 

1998

 
Chevrolet C2500

5.7L V8 CNG OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design
 

Chevrolet C2500



5.7L V8 CNG OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design

1 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

2000

 

1999

 

1998

 

1997

 

1996

 
Chevrolet C2500

5.7L V8 Gas OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Chevrolet C2500



5.7L V8 Gas OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

2000

 

1999

 

1998

 

1997

 

1996

 
Chevrolet C2500

5.7L V8 Gas OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design
 

Chevrolet C2500



5.7L V8 Gas OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design

1 Per Vehicle

1999

 

1998

 

1999

 

1998

 
Chevrolet C2500

5.0L V8 Gas OHV
1
 
Downstream
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Chevrolet C2500



5.0L V8 Gas OHV

Downstream Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1999

 

1998

 

1997

 

1996

 
Chevrolet C2500

7.4L V8 Gas OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Chevrolet C2500



7.4L V8 Gas OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1999

 

1998

 

1997

 

1996

 
Chevrolet C2500

7.4L V8 Gas OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design
 

Chevrolet C2500



7.4L V8 Gas OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design

1 Per Vehicle

1997

 

1996

 

1997

 

1996

 
Chevrolet C2500

5.0L V8 Gas OHV
1
 
Downstream
 
Direct Fit Oxygen Sensor
Located After Catalyst
B1S3
OE Equivalent Design
 

Chevrolet C2500



5.0L V8 Gas OHV

Downstream Direct Fit Oxygen Sensor
Located After Catalyst
B1S3
OE Equivalent Design

1 Per Vehicle

1997

 

1996

 

1997

 

1996

 
Chevrolet C2500

5.0L V8 Gas OHV
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in Exhaust Pipe Y Before Catalyst
B1S2
OE Equivalent Design
 

Chevrolet C2500



5.0L V8 Gas OHV

Upstream Direct Fit Oxygen Sensor
Located in Exhaust Pipe Y Before Catalyst
B1S2
OE Equivalent Design

1 Per Vehicle

1996

 

1996

 
Chevrolet C2500

5.7L V8 CNG OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Chevrolet C2500



5.7L V8 CNG OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

1996

 

1996

 
Chevrolet C2500

5.7L V8 CNG OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design
 

Chevrolet C2500



5.7L V8 CNG OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design

1 Per Vehicle

1999

 

1998

 

1997

 

1999

 

1998

 

1997

 
Chevrolet C2500 Suburban

5.7L V8 Gas OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
Automatic Transmission
Mfr Code: 4L80-E
 

Chevrolet C2500 Suburban



5.7L V8 Gas OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
Automatic Transmission
Mfr Code: 4L80-E

1 Per Vehicle

1999

 

1998

 

1997

 

1999

 

1998

 

1997

 
Chevrolet C2500 Suburban

5.7L V8 Gas OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design
Automatic Transmission
Mfr Code: 4L80-E
 

Chevrolet C2500 Suburban



5.7L V8 Gas OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design
Automatic Transmission
Mfr Code: 4L80-E

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1999

 

1998

 

1997

 

1996

 
Chevrolet C2500 Suburban

7.4L V8 Gas OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Chevrolet C2500 Suburban



7.4L V8 Gas OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1999

 

1998

 

1997

 

1996

 
Chevrolet C2500 Suburban

7.4L V8 Gas OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design
 

Chevrolet C2500 Suburban



7.4L V8 Gas OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design

1 Per Vehicle

1996

 

1996

 
Chevrolet C2500 Suburban

5.7L V8 Gas OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Chevrolet C2500 Suburban



5.7L V8 Gas OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

1996

 

1996

 
Chevrolet C2500 Suburban

5.7L V8 Gas OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design
 

Chevrolet C2500 Suburban



5.7L V8 Gas OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design

1 Per Vehicle

2000

 

2000

 
Chevrolet C3500

7.4L V8 Gas OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
Federal Emissions
OE Equivalent Design
 

Chevrolet C3500



7.4L V8 Gas OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
Federal Emissions
OE Equivalent Design

1 Per Vehicle

2000

 

2000

 
Chevrolet C3500

7.4L V8 Gas OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
Federal Emissions
OE Equivalent Design
 

Chevrolet C3500



7.4L V8 Gas OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
Federal Emissions
OE Equivalent Design

1 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

2000

 

1999

 

1998

 

1997

 

1996

 
Chevrolet C3500

5.7L V8 Gas OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Chevrolet C3500



5.7L V8 Gas OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

2000

 

1999

 

1998

 

1997

 

1996

 
Chevrolet C3500

5.7L V8 Gas OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design
 

Chevrolet C3500



5.7L V8 Gas OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design

1 Per Vehicle

1999

 

1998

 

1997

 

1999

 

1998

 

1997

 
Chevrolet C3500

5.7L V8 CNG OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Chevrolet C3500



5.7L V8 CNG OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

1999

 

1998

 

1997

 

1999

 

1998

 

1997

 
Chevrolet C3500

5.7L V8 CNG OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design
 

Chevrolet C3500



5.7L V8 CNG OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1999

 

1998

 

1997

 

1996

 
Chevrolet C3500

7.4L V8 Gas OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Chevrolet C3500



7.4L V8 Gas OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1999

 

1998

 

1997

 

1996

 
Chevrolet C3500

7.4L V8 Gas OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design
 

Chevrolet C3500



7.4L V8 Gas OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design

1 Per Vehicle

2000

 

2000

 
Chevrolet C3500HD

7.4L V8 Gas OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
Federal Emissions
OE Equivalent Design
 

Chevrolet C3500HD



7.4L V8 Gas OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
Federal Emissions
OE Equivalent Design

1 Per Vehicle

2000

 

2000

 
Chevrolet C3500HD

7.4L V8 Gas OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
Federal Emissions
OE Equivalent Design
 

Chevrolet C3500HD



7.4L V8 Gas OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
Federal Emissions
OE Equivalent Design

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1999

 

1998

 

1997

 

1996

 
Chevrolet C3500HD

7.4L V8 Gas OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Chevrolet C3500HD



7.4L V8 Gas OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

1999

 

1998

 

1997

 

1996

 

1999

 

1998

 

1997

 

1996

 
Chevrolet C3500HD

7.4L V8 Gas OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design
 

Chevrolet C3500HD



7.4L V8 Gas OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design

1 Per Vehicle

2002

 

2001

 

2002

 

2001

 
Chevrolet Camaro

3.8L V6 Gas OHV
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in LH Manifold
B1S1
OE Equivalent Design
 

Chevrolet Camaro



3.8L V6 Gas OHV

Upstream Direct Fit Oxygen Sensor
Located in LH Manifold
B1S1
OE Equivalent Design

1 Per Vehicle

2002

 

2001

 

2002

 

2001

 
Chevrolet Camaro

3.8L V6 Gas OHV
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in RH Manifold
B2S1
OE Equivalent Design
 

Chevrolet Camaro



3.8L V6 Gas OHV

Upstream Direct Fit Oxygen Sensor
Located in RH Manifold
B2S1
OE Equivalent Design

1 Per Vehicle

2000

 

1999

 

1998

 

2000

 

1999

 

1998

 
Chevrolet Camaro

3.8L V6 Gas OHV
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in LH Manifold
B1S1
4 Lead Sensor
OE Equivalent Design
 

Chevrolet Camaro



3.8L V6 Gas OHV

Upstream Direct Fit Oxygen Sensor
Located in LH Manifold
B1S1
4 Lead Sensor
OE Equivalent Design

1 Per Vehicle

2000

 

1999

 

1998

 

2000

 

1999

 

1998

 
Chevrolet Camaro

3.8L V6 Gas OHV
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in RH Manifold
B2S1
4 Lead Sensor
OE Equivalent Design
 

Chevrolet Camaro



3.8L V6 Gas OHV

Upstream Direct Fit Oxygen Sensor
Located in RH Manifold
B2S1
4 Lead Sensor
OE Equivalent Design

1 Per Vehicle

1997

 

1997

 
Chevrolet Camaro

3.8L V6 Gas OHV
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in LH Manifold
B1S1
OE Equivalent Design
 

Chevrolet Camaro



3.8L V6 Gas OHV

Upstream Direct Fit Oxygen Sensor
Located in LH Manifold
B1S1
OE Equivalent Design

1 Per Vehicle

1997

 

1997

 
Chevrolet Camaro

3.8L V6 Gas OHV
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in RH Manifold
B2S1
OE Equivalent Design
 

Chevrolet Camaro



3.8L V6 Gas OHV

Upstream Direct Fit Oxygen Sensor
Located in RH Manifold
B2S1
OE Equivalent Design

1 Per Vehicle

2002

 

2001

 

2000

 

1999

 

1998

 

2002

 

2001

 

2000

 

1999

 

1998

 
Chevrolet Express 1500

4.3L V6 Gas OHV,
5.0L V8 Gas OHV
1
 
Downstream
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Chevrolet Express 1500



4.3L V6 Gas OHV,
5.0L V8 Gas OHV

Downstream Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 
Chevrolet Express 1500

5.7L V8 Gas OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Chevrolet Express 1500



5.7L V8 Gas OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 

2002

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 
Chevrolet Express 1500

5.7L V8 Gas OHV
1
 
Downstream Right (Passenger)
 
Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design
 

Chevrolet Express 1500



5.7L V8 Gas OHV

Downstream Right (Passenger) Direct Fit Oxygen Sensor
B2S2
OE Equivalent Design

1 Per Vehicle

1997

 

1997

 
Chevrolet Express 1500

4.3L V6 Gas OHV
1
 
Downstream
 
Direct Fit Oxygen Sensor
Located After Catalyst
B1S3
OE Equivalent Design
 

Chevrolet Express 1500



4.3L V6 Gas OHV

Downstream Direct Fit Oxygen Sensor
Located After Catalyst
B1S3
OE Equivalent Design

1 Per Vehicle

1997

 

1997

 
Chevrolet Express 1500

4.3L V6 Gas OHV
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in Exhaust Pipe Y Before Catalyst
B1S2
GVW Under 8,500 Lbs
OE Equivalent Design
 

Chevrolet Express 1500



4.3L V6 Gas OHV

Upstream Direct Fit Oxygen Sensor
Located in Exhaust Pipe Y Before Catalyst
B1S2
GVW Under 8,500 Lbs
OE Equivalent Design

1 Per Vehicle

1997

 

1996

 

1997

 

1996

 
Chevrolet Express 1500

5.0L V8 Gas OHV
1
 
Downstream
 
Direct Fit Oxygen Sensor
Located After Catalyst
B1S3
OE Equivalent Design
 

Chevrolet Express 1500



5.0L V8 Gas OHV

Downstream Direct Fit Oxygen Sensor
Located After Catalyst
B1S3
OE Equivalent Design

1 Per Vehicle

1997

 

1996

 

1997

 

1996

 
Chevrolet Express 1500

5.0L V8 Gas OHV
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in Exhaust Pipe Y Before Catalyst
B1S2
OE Equivalent Design
 

Chevrolet Express 1500



5.0L V8 Gas OHV

Upstream Direct Fit Oxygen Sensor
Located in Exhaust Pipe Y Before Catalyst
B1S2
OE Equivalent Design

1 Per Vehicle

1996

 

1996

 
Chevrolet Express 1500

4.3L V6 Gas OHV
1
 
Downstream
 
Direct Fit Oxygen Sensor
Located After Catalyst
B1S3
OE Equivalent Design
8th VIN Digit: W
 

Chevrolet Express 1500



4.3L V6 Gas OHV

Downstream Direct Fit Oxygen Sensor
Located After Catalyst
B1S3
OE Equivalent Design
8th VIN Digit: W

1 Per Vehicle

1996

 

1996

 
Chevrolet Express 1500

4.3L V6 Gas OHV
1
 
Upstream
 
Direct Fit Oxygen Sensor
Located in Exhaust Pipe Y Before Catalyst
B1S2
GVW Under 8,500 Lbs
OE Equivalent Design
8th VIN Digit: W
 

Chevrolet Express 1500



4.3L V6 Gas OHV

Upstream Direct Fit Oxygen Sensor
Located in Exhaust Pipe Y Before Catalyst
B1S2
GVW Under 8,500 Lbs
OE Equivalent Design
8th VIN Digit: W

1 Per Vehicle

2002

 

2002

 
Chevrolet Express 2500

5.7L V8 Bi-Fuel OHV
1
 
Downstream Left (Driver)
 
Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design
 

Chevrolet Express 2500



5.7L V8 Bi-Fuel OHV

Downstream Left (Driver) Direct Fit Oxygen Sensor
B1S2
OE Equivalent Design

1 Per Vehicle
See More Fitments on Page 2 - or - Select Your Vehicle Above


Customers who bought NGK 21539 Oxygen Sensor also purchased

NGK 21006 Oxygen Sensor
NGK 21006 Oxygen Sensor