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GM Original Equipment
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 specific GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Features & Benefits:
  • 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

Common O2 Sensor Locations, Service Intervals, & Helpful Links:

Wire Harness Length12.590 IN
Wire Harness Length320.00 MM
Wire Gauge Measurement20 GA
Sensor TypeHeated
Universal Or Specific FitSpecific
Wire Quantity4
Connector ShapeTRIANGULAR
Connector GenderFemale
Overall Length15.92 IN
Overall Length404.3 MM
Thread Diameter18.00 mm
Mounting TypePOSN 2
Alternate/OEM Part Number(s): 12598718

Warranty Information:
24 Month / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18; 12 Months on parts sold before 04/01/18.
Warranty Details