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ACDelco 12657188 Oxygen Sensor


Brand:	ACDelco
Part Number:	12657188
UPC:	00808709090670
Weight:	0.19 lbs
Condition:	New

On Sale:

$42.12

Availability:

678 in Stock

Warehouse:

US-4

Quantity:

Product Information

Description:

Get the ACDelco 12657188 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 Gender:

Male

Connector Shape:

Oval

Height (in):

3.03 in

Length (in):

8.06 in

Mounting Type:

Position 2

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):

0.19 lb

Width (in):

3.03 in

Country of Origin:

Select a vehicle to narrow ACDelco 12657188 Oxygen Sensor fitment info!

Last Updated: 04/13/2024

Years

Vehicle

Per Vehicle

Position

Fit Notes

Fitment Notes

Cadillac Escalade

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

1 Downstream Left (Driver)

Cadillac Escalade

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

Downstream Left (Driver)
1 Per Vehicle

Cadillac Escalade

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

1 Downstream Right (Passenger)

Cadillac Escalade

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

Downstream Right (Passenger)
1 Per Vehicle

Cadillac Escalade ESV

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

1 Downstream Left (Driver)

Cadillac Escalade ESV

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

Downstream Left (Driver)
1 Per Vehicle

Cadillac Escalade ESV

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

1 Downstream Right (Passenger)

Cadillac Escalade ESV

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

Downstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 2500

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

1 Downstream Left (Driver)

Chevrolet Express 2500

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

Downstream Left (Driver)
1 Per Vehicle

Chevrolet Express 2500

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

1 Downstream Right (Passenger)

Chevrolet Express 2500

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

Downstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 2500

2.8L L4 Diesel DOHC Turbo

1 Downstream Left (Driver)

Chevrolet Express 2500

2.8L L4 Diesel DOHC Turbo

Downstream Left (Driver)
1 Per Vehicle

Chevrolet Express 2500

2.8L L4 Diesel DOHC Turbo

1 Downstream Right (Passenger)

Chevrolet Express 2500

2.8L L4 Diesel DOHC Turbo

Downstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 2500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Downstream Left (Driver)

Chevrolet Express 2500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Downstream Left (Driver)
1 Per Vehicle

Chevrolet Express 2500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Downstream Right (Passenger)

Chevrolet Express 2500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Downstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 2500

4.8L V8 Flex OHV

1 Downstream Left (Driver)

Chevrolet Express 2500

4.8L V8 Flex OHV

Downstream Left (Driver)
1 Per Vehicle

Chevrolet Express 2500

4.8L V8 Flex OHV

1 Downstream Right (Passenger)

Chevrolet Express 2500

4.8L V8 Flex OHV

Downstream Right (Passenger)
1 Per Vehicle

2016

Chevrolet Express 2500

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

1 Downstream Left (Driver)

Chevrolet Express 2500

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

Downstream Left (Driver)
1 Per Vehicle

2016

Chevrolet Express 2500

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

1 Downstream Right (Passenger)

Chevrolet Express 2500

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

Downstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 3500

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

1 Downstream Left (Driver)

Chevrolet Express 3500

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

Downstream Left (Driver)
1 Per Vehicle

Chevrolet Express 3500

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

1 Downstream Right (Passenger)

Chevrolet Express 3500

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

Downstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 3500

2.8L L4 Diesel DOHC Turbo

1 Downstream Left (Driver)

Chevrolet Express 3500

2.8L L4 Diesel DOHC Turbo

Downstream Left (Driver)
1 Per Vehicle

Chevrolet Express 3500

2.8L L4 Diesel DOHC Turbo

1 Downstream Right (Passenger)

Chevrolet Express 3500

2.8L L4 Diesel DOHC Turbo

Downstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 3500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Downstream Left (Driver)

Chevrolet Express 3500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Downstream Left (Driver)
1 Per Vehicle

Chevrolet Express 3500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Downstream Right (Passenger)

Chevrolet Express 3500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Downstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 3500

4.8L V8 Flex OHV

1 Downstream Left (Driver)

Chevrolet Express 3500

4.8L V8 Flex OHV

Downstream Left (Driver)
1 Per Vehicle

Chevrolet Express 3500

4.8L V8 Flex OHV

1 Downstream Right (Passenger)

Chevrolet Express 3500

4.8L V8 Flex OHV

Downstream Right (Passenger)
1 Per Vehicle

2016

Chevrolet Express 3500

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

1 Downstream Left (Driver)

Chevrolet Express 3500

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

Downstream Left (Driver)
1 Per Vehicle

2016

Chevrolet Express 3500

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

1 Downstream Right (Passenger)

Chevrolet Express 3500

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

Downstream Right (Passenger)
1 Per Vehicle

2018

Chevrolet Express 4500

6.0L V8 CNG

1 Downstream Left (Driver)

Chevrolet Express 4500

6.0L V8 CNG

Downstream Left (Driver)
1 Per Vehicle

2018

Chevrolet Express 4500

6.0L V8 CNG

1 Downstream Right (Passenger)

Chevrolet Express 4500

6.0L V8 CNG

Downstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 4500

6.0L V8 Flex

1 Downstream Left (Driver)

Chevrolet Express 4500

6.0L V8 Flex

Downstream Left (Driver)
1 Per Vehicle

Chevrolet Express 4500

6.0L V8 Flex

1 Downstream Right (Passenger)

Chevrolet Express 4500

6.0L V8 Flex

Downstream 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 Downstream Left (Driver)

Chevrolet Express 4500

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

Downstream 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 Downstream Right (Passenger)

Chevrolet Express 4500

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

Downstream Right (Passenger)
1 Per Vehicle

Chevrolet Silverado 1500

5.3L V8 MILD HYBRID EV-Gas MHEV OHV

1 Downstream Left (Driver)

Eng: L8B
8th VIN Digit: R
RWD

Chevrolet Silverado 1500

5.3L V8 MILD HYBRID EV-Gas MHEV OHV

Downstream Left (Driver) Eng: L8B
8th VIN Digit: R
RWD

1 Per Vehicle

Chevrolet Silverado 1500

5.3L V8 MILD HYBRID EV-Gas MHEV OHV

1 Downstream Right (Passenger)

Eng: L8B
8th VIN Digit: R

Chevrolet Silverado 1500

5.3L V8 MILD HYBRID EV-Gas MHEV OHV

Downstream Right (Passenger) Eng: L8B
8th VIN Digit: R

1 Per Vehicle

Chevrolet Silverado 1500

4.3L V6 Flex OHV

1 Downstream Left (Driver)

Eng: LV3
8th VIN Digit: H

Chevrolet Silverado 1500

4.3L V6 Flex OHV

Downstream Left (Driver) Eng: LV3
8th VIN Digit: H

1 Per Vehicle

Chevrolet Silverado 1500

4.3L V6 Flex OHV

1 Downstream Right (Passenger)

Eng: LV3
8th VIN Digit: H

Chevrolet Silverado 1500

4.3L V6 Flex OHV

Downstream Right (Passenger) Eng: LV3
8th VIN Digit: H

1 Per Vehicle

Chevrolet Silverado 1500

5.3L V8 Flex OHV,
5.3L V8 Gas OHV

1 Downstream Left (Driver)

Eng: L83
8th VIN Digit: C

Chevrolet Silverado 1500

5.3L V8 Flex OHV,
5.3L V8 Gas OHV

Downstream Left (Driver) Eng: L83
8th VIN Digit: C

1 Per Vehicle

Chevrolet Silverado 1500

5.3L V8 Flex OHV,
5.3L V8 Gas OHV

1 Downstream Right (Passenger)

Eng: L83
8th VIN Digit: C

Chevrolet Silverado 1500

5.3L V8 Flex OHV,
5.3L V8 Gas OHV

Downstream Right (Passenger) Eng: L83
8th VIN Digit: C

1 Per Vehicle

Chevrolet Silverado 1500

6.2L V8 Gas OHV

1 Downstream Left (Driver)

Eng: L86
8th VIN Digit: J

Chevrolet Silverado 1500

6.2L V8 Gas OHV

Downstream Left (Driver) Eng: L86
8th VIN Digit: J

1 Per Vehicle

Chevrolet Silverado 1500

6.2L V8 Gas OHV

1 Downstream Right (Passenger)

Eng: L86
8th VIN Digit: J

Chevrolet Silverado 1500

6.2L V8 Gas OHV

Downstream Right (Passenger) Eng: L86
8th VIN Digit: J

1 Per Vehicle

2019

Chevrolet Silverado 1500 LD

5.3L V8 Flex OHV,
5.3L V8 Gas OHV

1 Downstream Left (Driver)

Chevrolet Silverado 1500 LD

5.3L V8 Flex OHV,
5.3L V8 Gas OHV

Downstream Left (Driver)
1 Per Vehicle

2019

Chevrolet Silverado 1500 LD

5.3L V8 Flex OHV,
5.3L V8 Gas OHV

1 Downstream Right (Passenger)

Chevrolet Silverado 1500 LD

5.3L V8 Flex OHV,
5.3L V8 Gas OHV

Downstream Right (Passenger)
1 Per Vehicle

2019

Chevrolet Silverado 2500 HD

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

1 Downstream Left (Driver)

Eng: LC8
8th VIN Digit: B

Chevrolet Silverado 2500 HD

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

Downstream Left (Driver) Eng: LC8
8th VIN Digit: B

1 Per Vehicle

2019

Chevrolet Silverado 2500 HD

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

1 Downstream Right (Passenger)

Eng: LC8
8th VIN Digit: B

Chevrolet Silverado 2500 HD

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

Downstream Right (Passenger) Eng: LC8
8th VIN Digit: B

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Downstream Left (Driver)

Eng: L96
8th VIN Digit: G

Chevrolet Silverado 2500 HD

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Downstream Left (Driver) Eng: L96
8th VIN Digit: G

1 Per Vehicle

Chevrolet Silverado 2500 HD

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Downstream Right (Passenger)

Eng: L96
8th VIN Digit: G

Chevrolet Silverado 2500 HD

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Downstream Right (Passenger) Eng: L96
8th VIN Digit: G

1 Per Vehicle

2016

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV,
6.0L V8 Gas OHV

1 Downstream Left (Driver)

Eng: LC8
8th VIN Digit: B

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV,
6.0L V8 Gas OHV

Downstream Left (Driver) Eng: LC8
8th VIN Digit: B

1 Per Vehicle

2016

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV,
6.0L V8 Gas OHV

1 Downstream Right (Passenger)

Eng: LC8
8th VIN Digit: B

Chevrolet Silverado 2500 HD

6.0L V8 CNG OHV,
6.0L V8 Gas OHV

Downstream Right (Passenger) Eng: LC8
8th VIN Digit: B

1 Per Vehicle

2019

Chevrolet Silverado 3500 HD

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

1 Downstream Left (Driver)

Eng: LC8
8th VIN Digit: B

Chevrolet Silverado 3500 HD

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

Downstream Left (Driver) Eng: LC8
8th VIN Digit: B

1 Per Vehicle

2019

Chevrolet Silverado 3500 HD

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

1 Downstream Right (Passenger)

Eng: LC8
8th VIN Digit: B

Chevrolet Silverado 3500 HD

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

Downstream Right (Passenger) Eng: LC8
8th VIN Digit: B

1 Per Vehicle

Chevrolet Silverado 3500 HD

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Downstream Left (Driver)

Eng: L96
8th VIN Digit: G

Chevrolet Silverado 3500 HD

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Downstream Left (Driver) Eng: L96
8th VIN Digit: G

1 Per Vehicle

Chevrolet Silverado 3500 HD

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Downstream Right (Passenger)

Eng: L96
8th VIN Digit: G

Chevrolet Silverado 3500 HD

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Downstream Right (Passenger) Eng: L96
8th VIN Digit: G

1 Per Vehicle

2016

Chevrolet Silverado 3500 HD

6.0L V8 CNG OHV,
6.0L V8 Gas OHV

1 Downstream Left (Driver)

Eng: LC8
8th VIN Digit: B

Chevrolet Silverado 3500 HD

6.0L V8 CNG OHV,
6.0L V8 Gas OHV

Downstream Left (Driver) Eng: LC8
8th VIN Digit: B

1 Per Vehicle

2016

Chevrolet Silverado 3500 HD

6.0L V8 CNG OHV,
6.0L V8 Gas OHV

1 Downstream Right (Passenger)

Eng: LC8
8th VIN Digit: B

Chevrolet Silverado 3500 HD

6.0L V8 CNG OHV,
6.0L V8 Gas OHV

Downstream Right (Passenger) Eng: LC8
8th VIN Digit: B

1 Per Vehicle

Chevrolet Suburban

5.3L V8 Flex OHV,
5.3L V8 Gas OHV

1 Downstream Left (Driver)

Eng: L83
8th VIN Digit: C

Chevrolet Suburban

5.3L V8 Flex OHV,
5.3L V8 Gas OHV

Downstream Left (Driver) Eng: L83
8th VIN Digit: C

1 Per Vehicle

Chevrolet Suburban

5.3L V8 Flex OHV,
5.3L V8 Gas OHV

1 Downstream Right (Passenger)

Eng: L83
8th VIN Digit: C

Chevrolet Suburban

5.3L V8 Flex OHV,
5.3L V8 Gas OHV

Downstream Right (Passenger) Eng: L83
8th VIN Digit: C

1 Per Vehicle

Chevrolet Suburban

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

1 Downstream Left (Driver)

Eng: L86
8th VIN Digit: J

Chevrolet Suburban

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

Downstream Left (Driver) Eng: L86
8th VIN Digit: J

1 Per Vehicle

Chevrolet Suburban

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

1 Downstream Right (Passenger)

Eng: L86
8th VIN Digit: J

Chevrolet Suburban

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

Downstream Right (Passenger) Eng: L86
8th VIN Digit: J

1 Per Vehicle

Chevrolet Suburban

5.3L V8 Gas OHV

1 Downstream Left (Driver)

Chevrolet Suburban

5.3L V8 Gas OHV

Downstream Left (Driver)
1 Per Vehicle

Chevrolet Suburban

5.3L V8 Gas OHV

1 Downstream Right (Passenger)

Chevrolet Suburban

5.3L V8 Gas OHV

Downstream Right (Passenger)
1 Per Vehicle

Chevrolet Suburban

5.3L V8 Flex OHV

1 Downstream Left (Driver)

Chevrolet Suburban

5.3L V8 Flex OHV

Downstream Left (Driver)
1 Per Vehicle

Chevrolet Suburban

5.3L V8 Flex OHV

1 Downstream Right (Passenger)

Chevrolet Suburban

5.3L V8 Flex OHV

Downstream Right (Passenger)
1 Per Vehicle

Chevrolet Suburban 3500 HD

6.0L V8 Flex OHV

1 Downstream Left (Driver)

Chevrolet Suburban 3500 HD

6.0L V8 Flex OHV

Downstream Left (Driver)
1 Per Vehicle

Chevrolet Suburban 3500 HD

6.0L V8 Flex OHV

1 Downstream Right (Passenger)

Chevrolet Suburban 3500 HD

6.0L V8 Flex OHV

Downstream Right (Passenger)
1 Per Vehicle

Chevrolet Suburban 3500 HD

6.0L V8 Gas OHV

1 Downstream Left (Driver)

Chevrolet Suburban 3500 HD

6.0L V8 Gas OHV

Downstream Left (Driver)
1 Per Vehicle

Chevrolet Suburban 3500 HD

6.0L V8 Gas OHV

1 Downstream Right (Passenger)

Chevrolet Suburban 3500 HD

6.0L V8 Gas OHV

Downstream Right (Passenger)
1 Per Vehicle

Chevrolet Tahoe

5.3L V8 Flex OHV,
5.3L V8 Gas OHV

1 Downstream Left (Driver)

Eng: L83
8th VIN Digit: C

Chevrolet Tahoe

5.3L V8 Flex OHV,
5.3L V8 Gas OHV

Downstream Left (Driver) Eng: L83
8th VIN Digit: C

1 Per Vehicle

Chevrolet Tahoe

5.3L V8 Flex OHV,
5.3L V8 Gas OHV

1 Downstream Right (Passenger)

Eng: L83
8th VIN Digit: C

Chevrolet Tahoe

5.3L V8 Flex OHV,
5.3L V8 Gas OHV

Downstream Right (Passenger) Eng: L83
8th VIN Digit: C

1 Per Vehicle

Chevrolet Tahoe

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

1 Downstream Left (Driver)

Eng: L86
8th VIN Digit: J

Chevrolet Tahoe

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

Downstream Left (Driver) Eng: L86
8th VIN Digit: J

1 Per Vehicle

Chevrolet Tahoe

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

1 Downstream Right (Passenger)

Eng: L86
8th VIN Digit: J

Chevrolet Tahoe

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

Downstream Right (Passenger) Eng: L86
8th VIN Digit: J

1 Per Vehicle

Chevrolet Tahoe

5.3L V8 Gas OHV

1 Downstream Left (Driver)

Chevrolet Tahoe

5.3L V8 Gas OHV

Downstream Left (Driver)
1 Per Vehicle

Chevrolet Tahoe

5.3L V8 Gas OHV

1 Downstream Right (Passenger)

Chevrolet Tahoe

5.3L V8 Gas OHV

Downstream Right (Passenger)
1 Per Vehicle

Chevrolet Tahoe

5.3L V8 Flex OHV

1 Downstream Left (Driver)

Chevrolet Tahoe

5.3L V8 Flex OHV

Downstream Left (Driver)
1 Per Vehicle

Chevrolet Tahoe

5.3L V8 Flex OHV

1 Downstream Right (Passenger)

Chevrolet Tahoe

5.3L V8 Flex OHV

Downstream Right (Passenger)
1 Per Vehicle

GMC Savana 2500

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

1 Downstream Left (Driver)

GMC Savana 2500

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

Downstream Left (Driver)
1 Per Vehicle

GMC Savana 2500

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

1 Downstream Right (Passenger)

GMC Savana 2500

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

Downstream Right (Passenger)
1 Per Vehicle

GMC Savana 2500

2.8L L4 Diesel DOHC Turbo

1 Downstream Left (Driver)

GMC Savana 2500

2.8L L4 Diesel DOHC Turbo

Downstream Left (Driver)
1 Per Vehicle

GMC Savana 2500

2.8L L4 Diesel DOHC Turbo

1 Downstream Right (Passenger)

GMC Savana 2500

2.8L L4 Diesel DOHC Turbo

Downstream Right (Passenger)
1 Per Vehicle

GMC Savana 2500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Downstream Left (Driver)

GMC Savana 2500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Downstream Left (Driver)
1 Per Vehicle

GMC Savana 2500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Downstream Right (Passenger)

GMC Savana 2500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Downstream Right (Passenger)
1 Per Vehicle

GMC Savana 2500

4.8L V8 Flex OHV

1 Downstream Left (Driver)

GMC Savana 2500

4.8L V8 Flex OHV

Downstream Left (Driver)
1 Per Vehicle

GMC Savana 2500

4.8L V8 Flex OHV

1 Downstream Right (Passenger)

GMC Savana 2500

4.8L V8 Flex OHV

Downstream Right (Passenger)
1 Per Vehicle

2016

GMC Savana 2500

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

1 Downstream Left (Driver)

GMC Savana 2500

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

Downstream Left (Driver)
1 Per Vehicle

2016

GMC Savana 2500

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

1 Downstream Right (Passenger)

GMC Savana 2500

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

Downstream Right (Passenger)
1 Per Vehicle

GMC Savana 3500

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

1 Downstream Left (Driver)

GMC Savana 3500

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

Downstream Left (Driver)
1 Per Vehicle

GMC Savana 3500

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

1 Downstream Right (Passenger)

GMC Savana 3500

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

Downstream Right (Passenger)
1 Per Vehicle

GMC Savana 3500

2.8L L4 Diesel DOHC Turbo

1 Downstream Left (Driver)

GMC Savana 3500

2.8L L4 Diesel DOHC Turbo

Downstream Left (Driver)
1 Per Vehicle

GMC Savana 3500

2.8L L4 Diesel DOHC Turbo

1 Downstream Right (Passenger)

GMC Savana 3500

2.8L L4 Diesel DOHC Turbo

Downstream Right (Passenger)
1 Per Vehicle

GMC Savana 3500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Downstream Left (Driver)

GMC Savana 3500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Downstream Left (Driver)
1 Per Vehicle

GMC Savana 3500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

1 Downstream Right (Passenger)

GMC Savana 3500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV

Downstream Right (Passenger)
1 Per Vehicle

GMC Savana 3500

4.8L V8 Flex OHV

1 Downstream Left (Driver)

GMC Savana 3500

4.8L V8 Flex OHV

Downstream Left (Driver)
1 Per Vehicle

GMC Savana 3500

4.8L V8 Flex OHV

1 Downstream Right (Passenger)

GMC Savana 3500

4.8L V8 Flex OHV

Downstream Right (Passenger)
1 Per Vehicle

2016

GMC Savana 3500

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

1 Downstream Left (Driver)

GMC Savana 3500

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

Downstream Left (Driver)
1 Per Vehicle

2016

GMC Savana 3500

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

1 Downstream Right (Passenger)

GMC Savana 3500

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

Downstream Right (Passenger)
1 Per Vehicle

GMC Savana 4500

6.0L V8 Flex

1 Downstream Left (Driver)

GMC Savana 4500

6.0L V8 Flex

Downstream Left (Driver)
1 Per Vehicle

GMC Savana 4500

6.0L V8 Flex

1 Downstream Right (Passenger)

GMC Savana 4500

6.0L V8 Flex

Downstream 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 Downstream Left (Driver)

GMC Savana 4500

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

Downstream 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 Downstream Right (Passenger)

GMC Savana 4500

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

Downstream Right (Passenger)
1 Per Vehicle

GMC Sierra 1500

5.3L V8 MILD HYBRID EV-Gas MHEV OHV

1 Downstream Left (Driver)

Eng: L8B
8th VIN Digit: R
RWD

GMC Sierra 1500

5.3L V8 MILD HYBRID EV-Gas MHEV OHV

Downstream Left (Driver) Eng: L8B
8th VIN Digit: R
RWD

1 Per Vehicle

GMC Sierra 1500

5.3L V8 MILD HYBRID EV-Gas MHEV OHV

1 Downstream Right (Passenger)

Eng: L8B
8th VIN Digit: R

GMC Sierra 1500

5.3L V8 MILD HYBRID EV-Gas MHEV OHV

Downstream Right (Passenger) Eng: L8B
8th VIN Digit: R

1 Per Vehicle

GMC Sierra 1500

5.3L V8 Gas OHV

1 Downstream Left (Driver)

Eng: L83
8th VIN Digit: C

GMC Sierra 1500

5.3L V8 Gas OHV

Downstream Left (Driver) Eng: L83
8th VIN Digit: C

1 Per Vehicle

See More Fitments on Page 2 - or - Select Your Vehicle Above

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Features and Benefits:

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Select a vehicle to narrow ACDelco 12657188 Oxygen Sensor fitment info!

Cadillac Escalade 6.2L V8 Flex OHV,6.2L V8 Gas OHV

1

Downstream Left (Driver)

Cadillac Escalade

6.2L V8 Flex OHV,6.2L V8 Gas OHV Downstream Left (Driver) 1 Per Vehicle

Cadillac Escalade 6.2L V8 Flex OHV,6.2L V8 Gas OHV

1

Downstream Right (Passenger)

Cadillac Escalade

6.2L V8 Flex OHV,6.2L V8 Gas OHV Downstream Right (Passenger) 1 Per Vehicle

Cadillac Escalade ESV 6.2L V8 Flex OHV,6.2L V8 Gas OHV

1

Downstream Left (Driver)

Cadillac Escalade ESV

6.2L V8 Flex OHV,6.2L V8 Gas OHV Downstream Left (Driver) 1 Per Vehicle

Cadillac Escalade ESV 6.2L V8 Flex OHV,6.2L V8 Gas OHV

1

Downstream Right (Passenger)

Cadillac Escalade ESV

6.2L V8 Flex OHV,6.2L V8 Gas OHV Downstream Right (Passenger) 1 Per Vehicle

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

1

Downstream Left (Driver)

Chevrolet Express 2500

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

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

1

Downstream Right (Passenger)

Chevrolet Express 2500

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

Chevrolet Express 2500 2.8L L4 Diesel DOHC Turbo

1

Downstream Left (Driver)

Chevrolet Express 2500

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

Chevrolet Express 2500 2.8L L4 Diesel DOHC Turbo

1

Downstream Right (Passenger)

Chevrolet Express 2500

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

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

1

Downstream Left (Driver)

Chevrolet Express 2500

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

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

Cadillac Escalade

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

Downstream Left (Driver)
1 Per Vehicle

Cadillac Escalade

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

Downstream Right (Passenger)
1 Per Vehicle

Cadillac Escalade ESV

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

Downstream Left (Driver)
1 Per Vehicle

Cadillac Escalade ESV

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

6.2L V8 Flex OHV,
6.2L V8 Gas OHV

Downstream Right (Passenger)
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

Downstream 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

Downstream Right (Passenger)
1 Per Vehicle

Chevrolet Express 2500

2.8L L4 Diesel DOHC Turbo

2.8L L4 Diesel DOHC Turbo

Downstream Left (Driver)
1 Per Vehicle

Chevrolet Express 2500

2.8L L4 Diesel DOHC Turbo

2.8L L4 Diesel DOHC Turbo

Downstream 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

Downstream Left (Driver)
1 Per Vehicle

Chevrolet Express 2500

6.0L V8 Flex OHV,
6.0L V8 Gas OHV