NTK OE Type Oxygen Sensor CHEVROLET ASTRO


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Part #: 21545
Notes: OE Type Oxygen Sensor
MSRP: $180.36
Your Price: $51.31

Specs

Mounting Type Threaded
Sensor Type Heated
Thread Diameter 18.000
Universal Or Specific Fit Specific
Wire Harness Length 17.7500
Wire Quantity 4

All Fitments

BUICK
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
2006 - 2006 RAINIER ALL V8 5.3 ALL ALL ALL Position: Downstream Left
2006 - 2006 RAINIER ALL V8 5.3 ALL ALL ALL Position: Downstream Right
CHEVROLET
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
2003 - 2005 ASTRO ALL V6 4.3 ALL ALL ALL Position: Upstream Left
2003 - 2007 EXPRESS 1500 ALL V8 5.3 ALL ALL ALL Position: Downstream Right
2003 - 2007 EXPRESS 1500 ALL V8 5.3 ALL ALL ALL Position: Upstream Right
2003 - 2006 EXPRESS 1500 ALL V6 4.3 ALL ALL ALL Position: Downstream Right
2003 - 2006 EXPRESS 1500 ALL V6 4.3 ALL ALL ALL Position: Upstream Right
2003 - 2014 EXPRESS 2500 ALL V8 6.0 ALL ALL ALL Position: Downstream Right
2003 - 2014 EXPRESS 2500 ALL V8 6.0 ALL ALL ALL Position: Upstream Right
2003 - 2007 EXPRESS 2500 ALL V8 4.8 ALL ALL ALL Position: Downstream Right
2003 - 2007 EXPRESS 2500 ALL V8 4.8 ALL ALL ALL Position: Upstream Right
2003 - 2005 EXPRESS 2500 ALL V6 4.3 ALL ALL ALL Position: Downstream Right
2003 - 2005 EXPRESS 2500 ALL V6 4.3 ALL ALL ALL Position: Upstream Right
2003 - 2005 EXPRESS 2500 ALL V8 5.3 ALL ALL ALL Position: Downstream Right
2003 - 2005 EXPRESS 2500 ALL V8 5.3 ALL ALL ALL Position: Upstream Right
2003 - 2014 EXPRESS 3500 ALL V8 6.0 ALL ALL ALL Position: Downstream Right
2003 - 2014 EXPRESS 3500 ALL V8 6.0 ALL ALL ALL Position: Upstream Right
2005 - 2007 EXPRESS 3500 ALL V8 4.8 ALL ALL ALL Position: Downstream Right
2005 - 2007 EXPRESS 3500 ALL V8 4.8 ALL ALL ALL Position: Upstream Right
2006 - 2006 SSR ALL V8 6.0 ALL ALL ALL Position: Downstream Left
2006 - 2006 SSR ALL V8 6.0 ALL ALL ALL Position: Downstream Right
2006 - 2006 TRAILBLAZER ALL V8 5.3 ALL ALL ALL Position: Downstream Left
2006 - 2006 TRAILBLAZER ALL V8 5.3 ALL ALL ALL Position: Downstream Right
2006 - 2006 TRAILBLAZER ALL V8 6.0 ALL ALL ALL Position: Downstream Left
2006 - 2006 TRAILBLAZER ALL V8 6.0 ALL ALL ALL Position: Downstream Right
2006 - 2006 TRAILBLAZER EXT ALL V8 5.3 ALL ALL ALL Position: Downstream Left
2006 - 2006 TRAILBLAZER EXT ALL V8 5.3 ALL ALL ALL Position: Downstream Right
GMC
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
2006 - 2006 ENVOY ALL V8 5.3 ALL ALL ALL Position: Downstream Left
2006 - 2006 ENVOY ALL V8 5.3 ALL ALL ALL Position: Downstream Right
2006 - 2006 ENVOY XL ALL V8 5.3 ALL ALL ALL Position: Downstream Left
2006 - 2006 ENVOY XL ALL V8 5.3 ALL ALL ALL Position: Downstream Right
2003 - 2005 SAFARI ALL V6 4.3 ALL ALL ALL Position: Upstream Left
2003 - 2007 SAVANA 1500 ALL V8 5.3 ALL ALL ALL Position: Downstream Right
2003 - 2007 SAVANA 1500 ALL V8 5.3 ALL ALL ALL Position: Upstream Right
2003 - 2006 SAVANA 1500 ALL V6 4.3 ALL ALL ALL Position: Downstream Right
2003 - 2006 SAVANA 1500 ALL V6 4.3 ALL ALL ALL Position: Upstream Right
2003 - 2014 SAVANA 2500 ALL V8 6.0 ALL ALL ALL Position: Downstream Right
2003 - 2014 SAVANA 2500 ALL V8 6.0 ALL ALL ALL Position: Upstream Right
2003 - 2007 SAVANA 2500 ALL V8 4.8 ALL ALL ALL Position: Downstream Right
2003 - 2007 SAVANA 2500 ALL V8 4.8 ALL ALL ALL Position: Upstream Right
2003 - 2005 SAVANA 2500 ALL V6 4.3 ALL ALL ALL Position: Downstream Right
2003 - 2005 SAVANA 2500 ALL V6 4.3 ALL ALL ALL Position: Upstream Right
2003 - 2005 SAVANA 2500 ALL V8 5.3 ALL ALL ALL Position: Downstream Right
2003 - 2005 SAVANA 2500 ALL V8 5.3 ALL ALL ALL Position: Upstream Right
2003 - 2014 SAVANA 3500 ALL V8 6.0 ALL ALL ALL Position: Downstream Right
2003 - 2014 SAVANA 3500 ALL V8 6.0 ALL ALL ALL Position: Upstream Right
2004 - 2007 SAVANA 3500 ALL V8 4.8 ALL ALL ALL Position: Downstream Right
2004 - 2007 SAVANA 3500 ALL V8 4.8 ALL ALL ALL Position: Upstream Right
ISUZU
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
2006 - 2006 ASCENDER ALL V8 5.3 ALL ALL ALL Position: Downstream Left; 1st Design; Square Connector
2006 - 2006 ASCENDER ALL V8 5.3 ALL ALL ALL Position: Downstream Right; 1st Design; Square Connector
SAAB
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
2006 - 2006 9-7X ALL V8 5.3 ALL ALL ALL Position: Downstream Left; 1st Design; Square Connector
2006 - 2006 9-7X ALL V8 5.3 ALL ALL ALL Position: Downstream Right; 1st Design; Square Connector

Product Description

Oxygen (O2) Sensors are used in modern automobiles to control the fuel and ignition systems to optimize a car’s performance in the areas of emissions and fuel economy. Sensors are located before and after the catalytic converter to check on the amount of oxygen in the exhaust. The sensor sends signals to the car’s on-board computer, which then can adjust several variables, including air/fuel ratio and timing, in order to bring the engine into the optimum operating range.

Each NTK Oxygen (O2) Sensor is:

  • Extensively Tested During Manufacture to Guarantee Quality and Reliability
  • Supplied With a Factory-Fitted OEM Connector for Easy Installation
  • Precision manufactured with a sensing element incorporating NTK’s premier technical ceramics

Oxygen (O2) Sensors should be tested at each tune-up. Failed or worn out oxygen sensors can cause:

  • Failed Emission Tests
  • Increased Fuel Consumption
  • Failed Catalytic Converters
  • Poor Driveability
  • Increased Emissions

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