---
product_id: 486498318
title: "GM Parts ACDelco 12627139 Original Equipment Heated Oxygen Sensor"
brand: "gm genuine parts"
price: "337.21 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "Gm Genuine Parts"
url: https://www.desertcart.tn/products/486498318-gm-parts-acdelco-12627139-original-equipment-heated-oxygen-sensor
store_origin: TN
region: Tunisia
---

# Heated sensor for fast response 5 min response time for real-time tuning OEM precision fit & function GM Parts ACDelco 12627139 Original Equipment Heated Oxygen Sensor

**Brand:** gm genuine parts
**Price:** 337.21 DT
**Availability:** ✅ In Stock

## Summary

> 🔥 Tune your ride like a pro with GM’s precision oxygen sensor!

## Quick Answers

- **What is this?** GM Parts ACDelco 12627139 Original Equipment Heated Oxygen Sensor by gm genuine parts
- **How much does it cost?** 337.21 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/486498318-gm-parts-acdelco-12627139-original-equipment-heated-oxygen-sensor)

## Best For

- gm genuine parts enthusiasts

## Why This Product

- Trusted gm genuine parts brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rapid Feedback Sensor:** Heated design ensures quick 5-minute response for real-time emissions control
- • **Seamless Installation:** Flange mount design ensures hassle-free replacement and perfect alignment
- • **Durable High-Temp Build:** Stainless steel ceramic withstands up to 850°C for long-lasting operation
- • **Precision Engine Tuning:** Optimizes air/fuel ratio to 14.7:1 for peak performance and fuel efficiency
- • **GM-Recommended OEM Quality:** Guaranteed fit, durability, and reliability matching your vehicle’s original part

## Overview

The GM ACDelco 12627139 Heated Oxygen Sensor is a genuine OEM replacement part engineered to precisely measure oxygen levels in exhaust gases. Its heated sensor design delivers rapid 5-minute response times, enabling your engine to maintain the optimal air/fuel ratio of 14.7:1 for superior fuel economy, reduced emissions, and peak performance. Built with durable stainless steel ceramic materials and manufactured to exact GM specifications, this sensor guarantees a perfect fit and long-lasting reliability for your GM vehicle.

## Description

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.

Review: OE fit - You can never go wrong with Acdelco parts on GM vehicles. Worked like a dream.
Review: GM Part - Fits a Chevy Impala 2014 2.5L

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008MOQID4 |
| Brand | GM GENUINE PARTS |
| Brand Name | GM GENUINE PARTS |
| Customer Reviews | 4.3 out of 5 stars 123 Reviews |
| Included Components | ACDelco - Heated Oxygen S (Slp-1) (12643707) |
| Item Dimensions | 20.8 x 8.1 x 8.1 centimeters |
| Item Type Name | ACDelco Automotive Parts |
| Item Weight | 100 g |
| Item dimensions L x W x H | 20.8 x 8.1 x 8.1 centimeters |
| Item weight | 100 g |
| Manufacturer | ACDelco |
| Material | Stainless Steel Ceramic |
| Material Type | Stainless Steel Ceramic |
| Measurement Accuracy | ±1% |
| Measurement accuracy | ±1% |
| Measuring Range | 0-100% O2 |
| Model | 12627139 |
| Mounting Type | Flange Mount |
| Output Type | Push-Pull |
| Part Number | 12643707 |
| Response Time | 5 minutes |
| Specific Uses For Product | Oxygen Sensor |
| Style | Modern |
| Style Name | Modern |
| UPC | 808709376804 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 850 Degrees Celsius |

## Product Details

- **Brand:** GM GENUINE PARTS
- **Item Weight:** 0.22 Pounds
- **Item dimensions L x W x H:** 8.2 x 3.2 x 3.2 inches
- **Measurement Accuracy:** ±1%
- **Style:** Modern

## Images

![GM Parts ACDelco 12627139 Original Equipment Heated Oxygen Sensor - Image 1](https://m.media-amazon.com/images/I/51IXqeW2K8L.jpg)
![GM Parts ACDelco 12627139 Original Equipment Heated Oxygen Sensor - Image 2](https://m.media-amazon.com/images/I/319COYacMgL.jpg)
![GM Parts ACDelco 12627139 Original Equipment Heated Oxygen Sensor - Image 3](https://m.media-amazon.com/images/I/31soAIgbVDL.jpg)
![GM Parts ACDelco 12627139 Original Equipment Heated Oxygen Sensor - Image 4](https://m.media-amazon.com/images/I/31co2apH-hL.jpg)
![GM Parts ACDelco 12627139 Original Equipment Heated Oxygen Sensor - Image 5](https://m.media-amazon.com/images/I/713E6p8H9UL.jpg)

## Questions & Answers

**Q: What are the symptoms of a bad O2 sensor?**
A: A failing or failed O2 sensor may not detect the engine’s air-fuel ratio running too rich or too lean. Common signs include an illuminated check engine light, poor fuel economy, rough idling or failed emissions testing.

**Q: Can a bad O2 sensor cause the check engine light to come on?**
A: Yes. When incorrect oxygen levels are detected in the exhaust, the sensor will trigger the sensor to send a fault code and turn on the check engine light.

**Q: Will replacing an O2 sensor improve gas mileage?**
A: A properly functioning O2 sensor can help the vehicle maintain the optimal air-fuel ratio for combustion, helping balance fuel economy, engine performance and emissions.

**Q: How long do O2 sensors last?**
A: O2 sensors can last between 60,000 and 100,000 miles. However, O2 sensor longevity depends on numerous factors including heat, carbon buildup and normal wear.

**Q: Why choose GM Genuine Parts O2 sensors instead of aftermarket brands?**
A: GM Genuine Parts O2 sensors are engineered to original equipment specifications for precise fit, form and function. They are designed to integrate seamlessly with your vehicle’s engine.

## Customer Reviews

### ⭐⭐⭐⭐⭐ OE fit
*by P***N on 15 September 2025*

You can never go wrong with Acdelco parts on GM vehicles. Worked like a dream.

### ⭐⭐⭐⭐⭐ GM Part
*by R***E on 2 July 2026*

Fits a Chevy Impala 2014 2.5L

### ⭐⭐⭐⭐⭐ perfect replacement for G.M cars
*by A***R on 17 November 2025*

perfect replacement for my 2014 chevy malibu. due recommend

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-04*