---
product_id: 471413345
title: "ACDelco GM 12666673 Heated Oxygen Sensor"
brand: "gm genuine parts"
price: "S$79"
currency: SGD
in_stock: true
reviews_count: 5
category: "Gm Genuine Parts"
url: https://www.desertcart.sg/products/471413345-acdelco-gm-12666673-heated-oxygen-sensor
store_origin: SG
region: Singapore
---

# Optimizes fuel efficiency & emissions Heated sensor for rapid response Precision OEM fit for GM vehicles ACDelco GM 12666673 Heated Oxygen Sensor

**Brand:** gm genuine parts
**Price:** S$79
**Availability:** ✅ In Stock

## Summary

> 🔥 Stay ahead of the pack with precision oxygen sensing!

## Quick Answers

- **What is this?** ACDelco GM 12666673 Heated Oxygen Sensor by gm genuine parts
- **How much does it cost?** S$79 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/471413345-acdelco-gm-12666673-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

- • **Durability You Can Trust:** Built to last with premium materials ensuring long service life under tough driving conditions.
- • **Rapid Heat-Up Technology:** Get engine feedback faster with heated sensing for immediate air/fuel ratio adjustments.
- • **GM-Recommended OEM Quality:** Engineered to match original specs for seamless integration with Tahoe, Yukon, and Escalade models.
- • **Plug-and-Play Installation:** Designed for hassle-free replacement on the left front exhaust system, minimizing downtime.
- • **Fuel Economy & Emissions Optimizer:** Maintains the ideal 14.7:1 air/fuel ratio to boost mileage and reduce harmful emissions.

## Overview

The ACDelco GM 12666673 Heated Oxygen Sensor is a genuine OEM part designed specifically for GM SUVs like Tahoe, Yukon, and Escalade. It features a heated element for faster sensor response, ensuring your engine management system maintains optimal air/fuel ratios for peak performance, fuel efficiency, and reduced emissions. Engineered for durability and exact fitment, this sensor guarantees reliable, long-lasting operation and easy installation on the left front exhaust.

## 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: Excelente articulo
Review: Installed the Oxygen Sensor and it works perfectly. While I am always skeptical of getting Genuine GM parts from desertcart, when I see that desertcart is the seller and shipper, I feel more confident that I will be getting an actual GM part. If it comes from anyone other than desertcart, then beware.

## Features

- Tahoe, Yukon, Escalade. Left. Front.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B014X75KTG |
| Best Sellers Rank | #164,990 in Automotive ( See Top 100 in Automotive ) #753 in Car Exhaust Oxygen Sensors |
| Brand | GM GENUINE PARTS |
| Customer Reviews | 4.2 4.2 out of 5 stars (29) |
| Date First Available | 15 November 2015 |
| Exterior | Machined |
| Item Weight | 125 g |
| Item model number | 12666673 |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 12666673 |
| Model | Oxygen Sensor |
| OEM Part Number | 12666673 |
| Product Dimensions | 5.08 x 15.24 x 5.08 cm; 125 g |

## Product Details

- **Brand:** GM GENUINE PARTS
- **Item dimensions L x W x H:** 5.1 x 15.2 x 5.1 centimeters
- **Material:** Ceramics, Metals, Insulating Materials
- **Mounting type:** Flange Mount
- **Style:** Modern

## Images

![ACDelco GM 12666673 Heated Oxygen Sensor - Image 1](https://m.media-amazon.com/images/I/51i8ya0jqkL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by A***Z on 27 July 2023*

Excelente articulo

### ⭐⭐⭐⭐⭐ Review
*by D***N on 3 October 2025*

Installed the Oxygen Sensor and it works perfectly. While I am always skeptical of getting Genuine GM parts from Amazon, when I see that Amazon is the seller and shipper, I feel more confident that I will be getting an actual GM part. If it comes from anyone other than Amazon, then beware.

### ⭐⭐⭐⭐⭐ Review
*by K***S on 24 October 2024*

Change this sensor on my 2016 Tahoe LT working good!

## Frequently Bought Together

- GM 12666673 Heated Oxygen Sensor
- GM Genuine Parts 12659516 Heated Oxygen Sensor
- GM Parts ACDelco Genuine Heated Oxygen Sensor - 12657188

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.sg/products/471413345-acdelco-gm-12666673-heated-oxygen-sensor](https://www.desertcart.sg/products/471413345-acdelco-gm-12666673-heated-oxygen-sensor)

---

*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-02-12*