NGK 21555 Oxygen Sensor

NGK
NGK 21555 Oxygen Sensor

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Part Number: 21555
Manufacturer: NGK
On Sale: $49.74

Availability:
20 New In Stock
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OXYGEN SENSOR

Select Vehicle Above to Narrow Fitment Info!

Year Make Model Trim Engine Vehicle Fit Notes

Buick

 

Allure

 

ALL

 
2.4L l4 Gas DOHC
 
Buick
Allure
ALL

2.4L l4 Gas DOHC
OE Type Oxygen Sensor
OE Equivalent
Upstream
 

Buick

 

LaCrosse

 

ALL

 
2.4L l4 Electric/Gas DOHC
 
Buick
LaCrosse
ALL

2.4L l4 Electric/Gas DOHC
OE Type Oxygen Sensor
OE Equivalent
Upstream
 

Buick

 

LaCrosse

 

ALL

 
2.4L l4 Gas DOHC
 
Buick
LaCrosse
ALL

2.4L l4 Gas DOHC
OE Type Oxygen Sensor
OE Equivalent
Upstream
 

Buick

 

Regal

 

ALL

 
2.4L l4 Electric/Gas DOHC
 
Buick
Regal
ALL

2.4L l4 Electric/Gas DOHC
OE Type Oxygen Sensor
OE Equivalent
Upstream
 

Buick

 

Regal

 

ALL

 
2.0L l4 Flex DOHC Turbo
 
Buick
Regal
ALL

2.0L l4 Flex DOHC Turbo
OE Type Oxygen Sensor
OE Equivalent
Upstream
 

Buick

 

Regal

 

ALL

 
2.4L l4 Flex DOHC
 
Buick
Regal
ALL

2.4L l4 Flex DOHC
OE Type Oxygen Sensor
OE Equivalent
Upstream
 

Buick

 

Regal

 

ALL

 
2.4L l4 Gas DOHC
 
Buick
Regal
ALL

2.4L l4 Gas DOHC
OE Type Oxygen Sensor
OE Equivalent
Upstream
 

Buick

 

Verano

 

ALL

 
2.4L l4 Flex DOHC
 
Buick
Verano
ALL

2.4L l4 Flex DOHC
OE Type Oxygen Sensor
OE Equivalent
Upstream
 

Cadillac

 

SRX

 

ALL

 
4.6L V8 Gas DOHC
 
Cadillac
SRX
ALL

4.6L V8 Gas DOHC
OE Type Oxygen Sensor
OE Equivalent
Upstream Left
Upstream Right
 

Cadillac

 

STS

 

ALL

 
4.6L V8 Gas DOHC
 
Cadillac
STS
ALL

4.6L V8 Gas DOHC
OE Type Oxygen Sensor
OE Equivalent
Upstream Left
Upstream Right
 

Chevrolet

 

Avalanche 2500

 

ALL

 
8.1L V8 Gas OHV
 
Chevrolet
Avalanche 2500
ALL

8.1L V8 Gas OHV
OE Type Oxygen Sensor
Downstream Left
OE Equivalent
 

Chevrolet

 

Corvette

 

ALL

 
6.2L V8 Gas OHV
 
Chevrolet
Corvette
ALL

6.2L V8 Gas OHV
OE Type Oxygen Sensor
Natural
OE Equivalent
Upstream Left
Upstream Right
 

Chevrolet

 

Corvette

 

ALL

 
7.0L V8 Gas OHV
 
Chevrolet
Corvette
ALL

7.0L V8 Gas OHV
OE Type Oxygen Sensor
OE Equivalent
Upstream Left
Upstream Right
 

Chevrolet

 

Corvette

 

ALL

 
6.2L V8 Gas OHV
 
Chevrolet
Corvette
ALL

6.2L V8 Gas OHV
OE Type Oxygen Sensor
OE Equivalent
Upstream Left
Upstream Right
 

Chevrolet

 

Corvette

 

ALL

 
6.0L V8 Gas OHV
 
Chevrolet
Corvette
ALL

6.0L V8 Gas OHV
OE Type Oxygen Sensor
OE Equivalent
Upstream Left
Upstream Right
 

Chevrolet

 

Express 3500

 

ALL

 
6.0L V8 CNG OHV
 
Chevrolet
Express 3500
ALL

6.0L V8 CNG OHV
OE Type Oxygen Sensor
Cutaway Van
OE Equivalent
Upstream Left
Upstream Right
 

Chevrolet

 

Express 3500

 

ALL

 
6.0L V8 Flex OHV
 
Chevrolet
Express 3500
ALL

6.0L V8 Flex OHV
OE Type Oxygen Sensor
Cutaway Van
OE Equivalent
Upstream Left
Upstream Right
 

Chevrolet

 

Express 3500

 

ALL

 
6.0L V8 Gas OHV
 
Chevrolet
Express 3500
ALL

6.0L V8 Gas OHV
OE Type Oxygen Sensor
Cutaway Van
OE Equivalent
Upstream Left
Upstream Right
 

Chevrolet

 

Express 4500

 

ALL

 
6.0L V8 CNG OHV
 
Chevrolet
Express 4500
ALL

6.0L V8 CNG OHV
OE Type Oxygen Sensor
OE Equivalent
Upstream Left
 

Chevrolet

 

Express 4500

 

ALL

 
6.0L V8 Flex OHV
 
Chevrolet
Express 4500
ALL

6.0L V8 Flex OHV
OE Type Oxygen Sensor
OE Equivalent
Upstream Left
Upstream Right
 

Chevrolet

 

Express 4500

 

ALL

 
6.0L V8 Gas OHV
 
Chevrolet
Express 4500
ALL

6.0L V8 Gas OHV
OE Type Oxygen Sensor
OE Equivalent
Upstream Left
Upstream Right
 

Chevrolet

 

HHR

 

ALL

 
2.4L l4 Gas DOHC
 
Chevrolet
HHR
ALL

2.4L l4 Gas DOHC
OE Type Oxygen Sensor
OE Equivalent
Upstream
 

Chevrolet

 

Impala

 

ALL

 
2.4L l4 Electric/Gas DOHC
 
Chevrolet
Impala
ALL

2.4L l4 Electric/Gas DOHC
OE Type Oxygen Sensor
OE Equivalent
Upstream
 

Chevrolet

 

Malibu

 

ALL

 
2.4L l4 Electric/Gas DOHC
 
Chevrolet
Malibu
ALL

2.4L l4 Electric/Gas DOHC
OE Type Oxygen Sensor
OE Equivalent
Upstream
 

Chevrolet

 

Malibu

 

ALL

 
2.4L l4 Flex DOHC,
2.4L l4 Gas DOHC
 
Chevrolet
Malibu
ALL

2.4L l4 Flex DOHC,
2.4L l4 Gas DOHC
OE Type Oxygen Sensor
OE Equivalent
Upstream
 

Chevrolet

 

Malibu

 

ALL

 
2.4L l4 Gas DOHC
 
Chevrolet
Malibu
ALL

2.4L l4 Gas DOHC
OE Type Oxygen Sensor
GAS, Automatic Trans, 6 Speed Trans
OE Equivalent
Upstream
 

Chevrolet

 

Orlando

 

ALL

 
2.4L l4 Gas DOHC
 
Chevrolet
Orlando
ALL

2.4L l4 Gas DOHC
OE Type Oxygen Sensor
OE Equivalent
Upstream
 

Chevrolet

 

Silverado 2500 HD

 

ALL

 
6.0L V8 Gas OHV
 
Chevrolet
Silverado 2500 HD
ALL

6.0L V8 Gas OHV
OE Type Oxygen Sensor
Extended Cab Pickup
OE Equivalent
Upstream Left
 

Chevrolet

 

Silverado 2500 HD

 

ALL

 
6.0L V8 Flex OHV
 
Chevrolet
Silverado 2500 HD
ALL

6.0L V8 Flex OHV
OE Type Oxygen Sensor
Extended Cab Pickup
OE Equivalent
Upstream Left
 

Chevrolet

 

Silverado 2500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
Chevrolet
Silverado 2500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
Crew Cab Pickup
OE Equivalent
Upstream Left
 

Chevrolet

 

Silverado 2500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
Chevrolet
Silverado 2500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
Crew Cab Pickup
OE Equivalent
Upstream Right
 

Chevrolet

 

Silverado 2500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
Chevrolet
Silverado 2500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
Extended Cab Pickup
OE Equivalent
Upstream Right
 

Chevrolet

 

Silverado 2500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
Chevrolet
Silverado 2500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
OE Equivalent
Standard Cab Pickup
Upstream Left
 

Chevrolet

 

Silverado 2500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
Chevrolet
Silverado 2500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
OE Equivalent
Standard Cab Pickup
Upstream Right
 

Chevrolet

 

Silverado 2500 HD

 

ALL

 
8.1L V8 Gas OHV
 
Chevrolet
Silverado 2500 HD
ALL

8.1L V8 Gas OHV
OE Type Oxygen Sensor
Downstream Left
OE Equivalent
 

Chevrolet

 

Silverado 3500

 

ALL

 
8.1L V8 Gas OHV
 
Chevrolet
Silverado 3500
ALL

8.1L V8 Gas OHV
OE Type Oxygen Sensor
Downstream Left
OE Equivalent
 

Chevrolet

 

Silverado 3500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
Chevrolet
Silverado 3500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
Crew Cab Pickup
OE Equivalent
Upstream Left
Upstream Right
 

Chevrolet

 

Silverado 3500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
Chevrolet
Silverado 3500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
Extended Cab Pickup
OE Equivalent
Upstream Left
Upstream Right
 

Chevrolet

 

Silverado 3500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
Chevrolet
Silverado 3500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
OE Equivalent
Standard Cab Pickup
Upstream Left
Upstream Right
 

Chevrolet

 

Silverado 3500 HD

 

ALL

 
6.0L V8 Flex OHV
 
Chevrolet
Silverado 3500 HD
ALL

6.0L V8 Flex OHV
OE Type Oxygen Sensor
Crew Cab Pickup
OE Equivalent
Upstream Right
 

Chevrolet

 

Silverado 3500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
Chevrolet
Silverado 3500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
Crew Cab Pickup
OE Equivalent
Upstream Left
 

Chevrolet

 

Silverado 3500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
Chevrolet
Silverado 3500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
Extended Cab Pickup
OE Equivalent
Upstream Right
 

Chevrolet

 

Silverado 3500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
Chevrolet
Silverado 3500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
Extended Cab Pickup
OE Equivalent
Upstream Left
 

Chevrolet

 

Silverado 3500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
Chevrolet
Silverado 3500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
OE Equivalent
Standard Cab Pickup
Upstream Right
 

Chevrolet

 

Silverado 3500 HD

 

ALL

 
6.0L V8 Gas OHV
 
Chevrolet
Silverado 3500 HD
ALL

6.0L V8 Gas OHV
OE Type Oxygen Sensor
Crew Cab Pickup
OE Equivalent
Upstream Right
 

Chevrolet

 

Silverado 3500 HD

 

ALL

 
6.0L V8 Gas OHV
 
Chevrolet
Silverado 3500 HD
ALL

6.0L V8 Gas OHV
OE Type Oxygen Sensor
OE Equivalent
Standard Cab Pickup
Upstream Left
 

Chevrolet

 

Suburban 2500

 

ALL

 
8.1L V8 Gas OHV
 
Chevrolet
Suburban 2500
ALL

8.1L V8 Gas OHV
OE Type Oxygen Sensor
Downstream Left
OE Equivalent
 

GMC

 

Savana 3500

 

ALL

 
6.0L V8 CNG OHV
 
GMC
Savana 3500
ALL

6.0L V8 CNG OHV
OE Type Oxygen Sensor
Cutaway Van
OE Equivalent
Upstream Left
Upstream Right
 

GMC

 

Savana 3500

 

ALL

 
6.0L V8 Flex OHV
 
GMC
Savana 3500
ALL

6.0L V8 Flex OHV
OE Type Oxygen Sensor
Cutaway Van
OE Equivalent
Upstream Left
Upstream Right
 

GMC

 

Savana 3500

 

ALL

 
6.0L V8 Gas OHV
 
GMC
Savana 3500
ALL

6.0L V8 Gas OHV
OE Type Oxygen Sensor
Cutaway Van
OE Equivalent
Upstream Left
Upstream Right
 

GMC

 

Savana 4500

 

ALL

 
6.0L V8 CNG OHV
 
GMC
Savana 4500
ALL

6.0L V8 CNG OHV
OE Type Oxygen Sensor
OE Equivalent
Upstream Left
 

GMC

 

Savana 4500

 

ALL

 
6.0L V8 Flex OHV
 
GMC
Savana 4500
ALL

6.0L V8 Flex OHV
OE Type Oxygen Sensor
OE Equivalent
Upstream Left
Upstream Right
 

GMC

 

Savana 4500

 

ALL

 
6.0L V8 Gas OHV
 
GMC
Savana 4500
ALL

6.0L V8 Gas OHV
OE Type Oxygen Sensor
OE Equivalent
Upstream Left
Upstream Right
 

GMC

 

Sierra 2500 HD

 

ALL

 
6.0L V8 Gas OHV
 
GMC
Sierra 2500 HD
ALL

6.0L V8 Gas OHV
OE Type Oxygen Sensor
Extended Cab Pickup
OE Equivalent
Upstream Left
 

GMC

 

Sierra 2500 HD

 

ALL

 
6.0L V8 Flex OHV
 
GMC
Sierra 2500 HD
ALL

6.0L V8 Flex OHV
OE Type Oxygen Sensor
Crew Cab Pickup
OE Equivalent
Upstream Right
 

GMC

 

Sierra 2500 HD

 

ALL

 
6.0L V8 Flex OHV
 
GMC
Sierra 2500 HD
ALL

6.0L V8 Flex OHV
OE Type Oxygen Sensor
Extended Cab Pickup
OE Equivalent
Upstream Left
 

GMC

 

Sierra 2500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
GMC
Sierra 2500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
Crew Cab Pickup
OE Equivalent
Upstream Left
 

GMC

 

Sierra 2500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
GMC
Sierra 2500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
Extended Cab Pickup
OE Equivalent
Upstream Right
 

GMC

 

Sierra 2500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
GMC
Sierra 2500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
OE Equivalent
Standard Cab Pickup
Upstream Left
 

GMC

 

Sierra 2500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
GMC
Sierra 2500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
OE Equivalent
Standard Cab Pickup
Upstream Right
 

GMC

 

Sierra 2500 HD

 

ALL

 
6.0L V8 Gas OHV
 
GMC
Sierra 2500 HD
ALL

6.0L V8 Gas OHV
OE Type Oxygen Sensor
Crew Cab Pickup
OE Equivalent
Upstream Right
 

GMC

 

Sierra 2500 HD

 

ALL

 
8.1L V8 Gas OHV
 
GMC
Sierra 2500 HD
ALL

8.1L V8 Gas OHV
OE Type Oxygen Sensor
Downstream Left
OE Equivalent
 

GMC

 

Sierra 3500

 

ALL

 
8.1L V8 Gas OHV
 
GMC
Sierra 3500
ALL

8.1L V8 Gas OHV
OE Type Oxygen Sensor
Downstream Left
OE Equivalent
 

GMC

 

Sierra 3500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
GMC
Sierra 3500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
Crew Cab Pickup
OE Equivalent
Upstream Left
Upstream Right
 

GMC

 

Sierra 3500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
GMC
Sierra 3500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
Extended Cab Pickup
OE Equivalent
Upstream Left
Upstream Right
 

GMC

 

Sierra 3500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
GMC
Sierra 3500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
OE Equivalent
Standard Cab Pickup
Upstream Left
Upstream Right
 

GMC

 

Sierra 3500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
GMC
Sierra 3500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
Crew Cab Pickup
OE Equivalent
Upstream Left
 

GMC

 

Sierra 3500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
GMC
Sierra 3500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
Crew Cab Pickup
OE Equivalent
Upstream Right
 

GMC

 

Sierra 3500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
GMC
Sierra 3500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
Extended Cab Pickup
OE Equivalent
Upstream Left
 

GMC

 

Sierra 3500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
GMC
Sierra 3500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
Extended Cab Pickup
OE Equivalent
Upstream Right
 

GMC

 

Sierra 3500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
GMC
Sierra 3500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
OE Equivalent
Standard Cab Pickup
Upstream Left
 

GMC

 

Sierra 3500 HD

 

ALL

 
6.0L V8 Flex OHV,
6.0L V8 Gas OHV
 
GMC
Sierra 3500 HD
ALL

6.0L V8 Flex OHV,
6.0L V8 Gas OHV
OE Type Oxygen Sensor
OE Equivalent
Standard Cab Pickup
Upstream Right
 

GMC

 

Yukon XL 2500

 

ALL

 
8.1L V8 Gas OHV
 
GMC
Yukon XL 2500
ALL

8.1L V8 Gas OHV
OE Type Oxygen Sensor
Downstream Left
OE Equivalent
 

Pontiac

 

G6

 

ALL

 
2.4L l4 Flex DOHC
 
Pontiac
G6
ALL

2.4L l4 Flex DOHC
OE Type Oxygen Sensor
Automatic Trans, 6 Speed Trans
OE Equivalent
Upstream
 

Pontiac

 

G6

 

ALL

 
2.4L l4 Gas DOHC
 
Pontiac
G6
ALL

2.4L l4 Gas DOHC
OE Type Oxygen Sensor
Automatic Trans, 6 Speed Trans
OE Equivalent
Upstream
 

Saab

 

9-5

 

ALL

 
2.0L l4 Gas DOHC Turbo
 
Saab
9-5
ALL

2.0L l4 Gas DOHC Turbo
OE Type Oxygen Sensor
OE Equivalent
Upstream
 

Saturn

 

Aura

 

ALL

 
2.4L l4 Gas DOHC
 
Saturn
Aura
ALL

2.4L l4 Gas DOHC
OE Type Oxygen Sensor
GAS
OE Equivalent
Upstream