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Vehicle Info NeededACDELCOPART NUMBER: 065-12661898
SENSOR ASM HTD OXY POST C
$6829
Ships on 09/10/2026
Lowest Price GuaranteePart TypeOxygen Sensor
BrandACDELCO
Part CategoryReplacement Parts
Wrench Size22
Programming RequiredYes
Wire Quantity4
Terminal GenderMale
Features & Benefits - Bullet 6GM regularly updates production and service part designs to integrate new materials and technologies
Sensor TypeHeated
Features & Benefits - Bullet 2Detects oxygen content in the exhaust gases to help optimize emissions
Features & Benefits - Bullet 3Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
Features & Benefits - Bullet 4GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
Terminal Quantity4
Features & Benefits - Bullet 5GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
Product DescriptionGM Genuine Parts Oxygen (O2) Sensors are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These sensors are special feedback sensors on your vehicle's exhaust system and measure the proportion of oxygen in exhaust gases. Using this measurement, the engine control module (ECM) can adjust the air/fuel ratio to near the optimal value of 14.7:1. At this ratio, engine performance, emissions, and fuel economy are all optimized. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE). ⚠<b> WARNING:</b> Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Features &#38; Benefits - Bullet 1This part requires programming and/or special setup procedures. GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle
Universal Or Specific FitSpecific
Width (In)1
Terminal TypeBlade
Connector GenderFemale
Overall Length359
Thread SizeM18x1.5
Thread Diameter (Mm)18
Mounting TypeThreaded
Connector ShapeOval
Thread Diameter (In)0.71
Height (In)1
Length (In)16
Wiring Harness Length8.94
Weight (Lb)0.21
Grade TypeOE
Vendor Part Number12661898
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
