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ACDelco 12666612 Oxygen Sensor


Brand:	ACDelco
Part Number:	12666612
UPC:	00808709381501
Weight:	0.23 lbs
Condition:	New

On Sale:

$48.43

Availability:

176 in Stock

Warehouse:

US-4

Quantity:

Product Information

Description:

Get the ACDelco 12666612 Oxygen Sensor for your vehicle. Buy now and secure your purchase online!

GM 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). ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Features and Benefits:

Detects oxygen content in the exhaust gases to help optimize emissions
GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
GM regularly updates production and service part designs to integrate new materials and technologies
Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
This 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

Specifications:

Connector Shape:

Oval

Height (in):

3.03 in

Length (in):

8.06 in

Mounting Type:

Position 1

Programming Required:

Yes

Sensor Type:

Heated

Thread Diameter:

0.7086614 in.

Thread Diameter:

18 mm

Thread Size:

M18x1.5

Universal Or Specific Fit:

Specific

Weight (lb):

0.23 lb

Width (in):

3.03 in

Country of Origin:

Select a vehicle to narrow ACDelco 12666612 Oxygen Sensor fitment info!

Last Updated: 04/09/2024

Years

Vehicle

Per Vehicle

Position

Fitment Notes

Chevrolet Express 2500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

1 Upstream Left (Driver)

Chevrolet Express 2500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

Upstream Left (Driver)
1 Per Vehicle

Chevrolet Express 2500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

1 Upstream Right (Passenger)

Chevrolet Express 2500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

Upstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 2500

2.8L L4 Diesel DOHC Turbo

1 Upstream Left (Driver)

Chevrolet Express 2500

2.8L L4 Diesel DOHC Turbo

Upstream Left (Driver)
1 Per Vehicle

Chevrolet Express 2500

2.8L L4 Diesel DOHC Turbo

1 Upstream Right (Passenger)

Chevrolet Express 2500

2.8L L4 Diesel DOHC Turbo

Upstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 2500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Upstream Left (Driver)

Chevrolet Express 2500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Upstream Left (Driver)
1 Per Vehicle

Chevrolet Express 2500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Upstream Right (Passenger)

Chevrolet Express 2500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Upstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 2500

4.8L V8 Flex OHV

1 Upstream Left (Driver)

Chevrolet Express 2500

4.8L V8 Flex OHV

Upstream Left (Driver)
1 Per Vehicle

Chevrolet Express 2500

4.8L V8 Flex OHV

1 Upstream Right (Passenger)

Chevrolet Express 2500

4.8L V8 Flex OHV

Upstream Right (Passenger)
1 Per Vehicle

2016

Chevrolet Express 2500

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

1 Upstream Left (Driver)

Chevrolet Express 2500

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

Upstream Left (Driver)
1 Per Vehicle

2016

Chevrolet Express 2500

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

1 Upstream Right (Passenger)

Chevrolet Express 2500

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

Upstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 3500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

1 Upstream Left (Driver)

Chevrolet Express 3500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

Upstream Left (Driver)
1 Per Vehicle

Chevrolet Express 3500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

1 Upstream Right (Passenger)

Chevrolet Express 3500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

Upstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 3500

2.8L L4 Diesel DOHC Turbo

1 Upstream Left (Driver)

Chevrolet Express 3500

2.8L L4 Diesel DOHC Turbo

Upstream Left (Driver)
1 Per Vehicle

Chevrolet Express 3500

2.8L L4 Diesel DOHC Turbo

1 Upstream Right (Passenger)

Chevrolet Express 3500

2.8L L4 Diesel DOHC Turbo

Upstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 3500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Upstream Left (Driver)

Chevrolet Express 3500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Upstream Left (Driver)
1 Per Vehicle

Chevrolet Express 3500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Upstream Right (Passenger)

Chevrolet Express 3500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Upstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 3500

4.8L V8 Flex OHV

1 Upstream Left (Driver)

Chevrolet Express 3500

4.8L V8 Flex OHV

Upstream Left (Driver)
1 Per Vehicle

Chevrolet Express 3500

4.8L V8 Flex OHV

1 Upstream Right (Passenger)

Chevrolet Express 3500

4.8L V8 Flex OHV

Upstream Right (Passenger)
1 Per Vehicle

2016

Chevrolet Express 3500

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

1 Upstream Left (Driver)

Chevrolet Express 3500

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

Upstream Left (Driver)
1 Per Vehicle

2016

Chevrolet Express 3500

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

1 Upstream Right (Passenger)

Chevrolet Express 3500

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

Upstream Right (Passenger)
1 Per Vehicle

2018

Chevrolet Express 4500

6.0L V8 CNG

1 Upstream Left (Driver)

Chevrolet Express 4500

6.0L V8 CNG

Upstream Left (Driver)
1 Per Vehicle

2018

Chevrolet Express 4500

6.0L V8 CNG

1 Upstream Right (Passenger)

Chevrolet Express 4500

6.0L V8 CNG

Upstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 4500

6.0L V8 Flex

1 Upstream Left (Driver)

Chevrolet Express 4500

Chevrolet Express 4500

6.0L V8 Flex

1 Upstream Right (Passenger)

Chevrolet Express 4500

6.0L V8 Flex

Upstream Right (Passenger)
1 Per Vehicle

2016

Chevrolet Express 4500

6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.6L V8 Diesel OHV Turbo

1 Upstream Left (Driver)

Chevrolet Express 4500

6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.6L V8 Diesel OHV Turbo

Upstream Left (Driver)
1 Per Vehicle

2016

Chevrolet Express 4500

6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.6L V8 Diesel OHV Turbo

1 Upstream Right (Passenger)

Chevrolet Express 4500

6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.6L V8 Diesel OHV Turbo

Upstream Right (Passenger)
1 Per Vehicle

GMC Savana 2500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

1 Upstream Left (Driver)

GMC Savana 2500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

Upstream Left (Driver)
1 Per Vehicle

GMC Savana 2500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

1 Upstream Right (Passenger)

GMC Savana 2500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

Upstream Right (Passenger)
1 Per Vehicle

GMC Savana 2500

2.8L L4 Diesel DOHC Turbo

1 Upstream Left (Driver)

GMC Savana 2500

2.8L L4 Diesel DOHC Turbo

Upstream Left (Driver)
1 Per Vehicle

GMC Savana 2500

2.8L L4 Diesel DOHC Turbo

1 Upstream Right (Passenger)

GMC Savana 2500

2.8L L4 Diesel DOHC Turbo

Upstream Right (Passenger)
1 Per Vehicle

GMC Savana 2500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Upstream Left (Driver)

GMC Savana 2500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Upstream Left (Driver)
1 Per Vehicle

GMC Savana 2500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Upstream Right (Passenger)

GMC Savana 2500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Upstream Right (Passenger)
1 Per Vehicle

GMC Savana 2500

4.8L V8 Flex OHV

1 Upstream Left (Driver)

GMC Savana 2500

4.8L V8 Flex OHV

Upstream Left (Driver)
1 Per Vehicle

GMC Savana 2500

4.8L V8 Flex OHV

1 Upstream Right (Passenger)

GMC Savana 2500

4.8L V8 Flex OHV

Upstream Right (Passenger)
1 Per Vehicle

2016

GMC Savana 2500

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

1 Upstream Left (Driver)

GMC Savana 2500

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

Upstream Left (Driver)
1 Per Vehicle

2016

GMC Savana 2500

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

1 Upstream Right (Passenger)

GMC Savana 2500

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

Upstream Right (Passenger)
1 Per Vehicle

GMC Savana 3500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

1 Upstream Left (Driver)

GMC Savana 3500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

Upstream Left (Driver)
1 Per Vehicle

GMC Savana 3500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

1 Upstream Right (Passenger)

GMC Savana 3500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

Upstream Right (Passenger)
1 Per Vehicle

GMC Savana 3500

2.8L L4 Diesel DOHC Turbo

1 Upstream Left (Driver)

GMC Savana 3500

2.8L L4 Diesel DOHC Turbo

Upstream Left (Driver)
1 Per Vehicle

GMC Savana 3500

2.8L L4 Diesel DOHC Turbo

1 Upstream Right (Passenger)

GMC Savana 3500

2.8L L4 Diesel DOHC Turbo

Upstream Right (Passenger)
1 Per Vehicle

GMC Savana 3500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Upstream Left (Driver)

GMC Savana 3500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Upstream Left (Driver)
1 Per Vehicle

GMC Savana 3500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Upstream Right (Passenger)

GMC Savana 3500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Upstream Right (Passenger)
1 Per Vehicle

GMC Savana 3500

4.8L V8 Flex OHV

1 Upstream Left (Driver)

GMC Savana 3500

4.8L V8 Flex OHV

Upstream Left (Driver)
1 Per Vehicle

GMC Savana 3500

4.8L V8 Flex OHV

1 Upstream Right (Passenger)

GMC Savana 3500

4.8L V8 Flex OHV

Upstream Right (Passenger)
1 Per Vehicle

2016

GMC Savana 3500

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

1 Upstream Left (Driver)

GMC Savana 3500

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

Upstream Left (Driver)
1 Per Vehicle

2016

GMC Savana 3500

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

1 Upstream Right (Passenger)

GMC Savana 3500

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

Upstream Right (Passenger)
1 Per Vehicle

GMC Savana 4500

6.0L V8 Flex

1 Upstream Left (Driver)

GMC Savana 4500

GMC Savana 4500

6.0L V8 Flex

1 Upstream Right (Passenger)

GMC Savana 4500

6.0L V8 Flex

Upstream Right (Passenger)
1 Per Vehicle

2016

GMC Savana 4500

6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.6L V8 Diesel OHV Turbo

1 Upstream Left (Driver)

GMC Savana 4500

6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.6L V8 Diesel OHV Turbo

Upstream Left (Driver)
1 Per Vehicle

2016

GMC Savana 4500

6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.6L V8 Diesel OHV Turbo

1 Upstream Right (Passenger)

GMC Savana 4500

6.0L V8 CNG OHV,
6.0L V8 Flex OHV,
6.6L V8 Diesel OHV Turbo

Upstream Right (Passenger)
1 Per Vehicle

Customers who bought ACDelco 12666612 Oxygen Sensor also purchased

ACDelco 12666612 Oxygen Sensor

$48.43

Product Information

Description:

Features and Benefits:

Specifications:

Select a vehicle to narrow ACDelco 12666612 Oxygen Sensor fitment info!

Chevrolet Express 2500 4.3L V6 Flex OHV,4.3L V6 Gas OHV,6.0L V8 CNG OHV

1

Upstream Left (Driver)

Chevrolet Express 2500

4.3L V6 Flex OHV,4.3L V6 Gas OHV,6.0L V8 CNG OHV Upstream Left (Driver) 1 Per Vehicle

Chevrolet Express 2500 4.3L V6 Flex OHV,4.3L V6 Gas OHV,6.0L V8 CNG OHV

1

Upstream Right (Passenger)

Chevrolet Express 2500

4.3L V6 Flex OHV,4.3L V6 Gas OHV,6.0L V8 CNG OHV Upstream Right (Passenger) 1 Per Vehicle

Chevrolet Express 2500 2.8L L4 Diesel DOHC Turbo

1

Upstream Left (Driver)

Chevrolet Express 2500

2.8L L4 Diesel DOHC Turbo Upstream Left (Driver) 1 Per Vehicle

Chevrolet Express 2500 2.8L L4 Diesel DOHC Turbo

1

Upstream Right (Passenger)

Chevrolet Express 2500

2.8L L4 Diesel DOHC Turbo Upstream Right (Passenger) 1 Per Vehicle

Chevrolet Express 2500 6.0L V8 Flex OHV,6.0L V8 Gas OHV

1

Upstream Left (Driver)

Chevrolet Express 2500

6.0L V8 Flex OHV,6.0L V8 Gas OHV Upstream Left (Driver) 1 Per Vehicle

Chevrolet Express 2500 6.0L V8 Flex OHV,6.0L V8 Gas OHV

1

Upstream Right (Passenger)

Chevrolet Express 2500

6.0L V8 Flex OHV,6.0L V8 Gas OHV Upstream Right (Passenger) 1 Per Vehicle

Chevrolet Express 2500 4.8L V8 Flex OHV

1

Upstream Left (Driver)

Chevrolet Express 2500

4.8L V8 Flex OHV Upstream Left (Driver) 1 Per Vehicle

Chevrolet Express 2500 4.8L V8 Flex OHV

1

Upstream Right (Passenger)

Chevrolet Express 2500

4.8L V8 Flex OHV Upstream Right (Passenger) 1 Per Vehicle

Chevrolet Express 2500 6.0L V8 CNG OHV,6.6L V8 Diesel OHV Turbo

1

Upstream Left (Driver)

Chevrolet Express 2500

6.0L V8 CNG OHV,6.6L V8 Diesel OHV Turbo Upstream Left (Driver) 1 Per Vehicle

Chevrolet Express 2500 6.0L V8 CNG OHV,6.6L V8 Diesel OHV Turbo

1

Upstream Right (Passenger)

Chevrolet Express 2500

6.0L V8 CNG OHV,6.6L V8 Diesel OHV Turbo Upstream Right (Passenger) 1 Per Vehicle

Chevrolet Express 3500 4.3L V6 Flex OHV,4.3L V6 Gas OHV,6.0L V8 CNG OHV

1

Upstream Left (Driver)

Chevrolet Express 3500

4.3L V6 Flex OHV,4.3L V6 Gas OHV,6.0L V8 CNG OHV Upstream Left (Driver) 1 Per Vehicle

Chevrolet Express 3500 4.3L V6 Flex OHV,4.3L V6 Gas OHV,6.0L V8 CNG OHV

1

Upstream Right (Passenger)

Chevrolet Express 3500

4.3L V6 Flex OHV,4.3L V6 Gas OHV,6.0L V8 CNG OHV Upstream Right (Passenger) 1 Per Vehicle

Chevrolet Express 3500 2.8L L4 Diesel DOHC Turbo

1

Chevrolet Express 2500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

Upstream Left (Driver)
1 Per Vehicle

Chevrolet Express 2500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

Upstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 2500

2.8L L4 Diesel DOHC Turbo

2.8L L4 Diesel DOHC Turbo

Upstream Left (Driver)
1 Per Vehicle

Chevrolet Express 2500

2.8L L4 Diesel DOHC Turbo

2.8L L4 Diesel DOHC Turbo

Upstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 2500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Upstream Left (Driver)
1 Per Vehicle

Chevrolet Express 2500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Upstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 2500

4.8L V8 Flex OHV

4.8L V8 Flex OHV

Upstream Left (Driver)
1 Per Vehicle

Chevrolet Express 2500

4.8L V8 Flex OHV

4.8L V8 Flex OHV

Upstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 2500

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

Upstream Left (Driver)
1 Per Vehicle

Chevrolet Express 2500

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

6.0L V8 CNG OHV,
6.6L V8 Diesel OHV Turbo

Upstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 3500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

Upstream Left (Driver)
1 Per Vehicle

Chevrolet Express 3500

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

4.3L V6 Flex OHV,
4.3L V6 Gas OHV,
6.0L V8 CNG OHV

Upstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 3500

2.8L L4 Diesel DOHC Turbo