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Replacement Parts

GM Genuine Parts AFS21 Oxygen Sensor

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GM Genuine Parts AFS21 Oxygen Sensor
- Detect oxygen content in the exhaust gases to optimize emissions and fuel economy
- GM-recommended replacement part for your GM vehicle’s original factory component
- Offering the quality, reliability, and durability of GM OE
- Manufactured to GM OE specification for fit, form, and function
An ACDelco GM Original Equipment Oxygen (O2) Sensor is a GM-recommended replacement for your vehicle's original component, and is a special feedback sensor on your vehicle's exhaust system. This sensor measures the proportion of oxygen in the exhaust gases. Using this measurement, the engine management computer can adjust the air/fuel ratio near the optimum value of 14.7:1. At this ratio, engine performance, emissions, and fuel economy are all optimized. This original equipment oxygen sensor has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Country	USA
Brand	GM Parts
Manufacturer	ACDelco
Binding	Automotive
ItemPartNumber	AFS21
Model	AFS21
Warranty	24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details.
UnitCount	1
UPCs	707773489673
EANs	0036666649314
ReleaseDate	0000-00-00

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