---
product_id: 15790844
title: "GM Genuine Parts 9G (12639701) Glow Plug (Pack of 1)"
brand: "gm genuine parts"
price: "206 Lei"
currency: RON
in_stock: true
reviews_count: 13
category: "Gm Genuine Parts"
url: https://www.desertcart.ro/products/15790844-gm-genuine-parts-9g-12639701-glow-plug-pack-of-1
store_origin: RO
region: Romania
---

# Self-regulating heat control Precision fit for GM vehicles Optimized cold start performance GM Genuine Parts 9G (12639701) Glow Plug (Pack of 1)

**Brand:** gm genuine parts
**Price:** 206 Lei
**Availability:** ✅ In Stock

## Summary

> ❄️ Ignite your diesel’s potential with GM Genuine Glow Plugs—start smart, start strong!

## Quick Answers

- **What is this?** GM Genuine Parts 9G (12639701) Glow Plug (Pack of 1) by gm genuine parts
- **How much does it cost?** 206 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/15790844-gm-genuine-parts-9g-12639701-glow-plug-pack-of-1)

## 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

- • **OE-Quality Assurance:** Manufactured to meet or exceed GM’s original equipment standards for perfect fit and function.
- • **Self-Regulating Coil:** Automatically controls electrical flow to prevent overheating and extend glow plug life.
- • **Trusted by Professionals:** Backed by GM and ACDelco with a 4.6-star rating from over 1,700 users—your go-to for dependable ignition.
- • **Wide Compatibility Range:** Available in multiple reach sizes (21mm to 40mm) to fit diverse diesel engine chambers.
- • **Engineered for Cold Starts:** Delivers rapid, reliable heat to ignite diesel engines even in freezing conditions.

## Overview

GM Genuine Parts 9G Glow Plug (12639701) is a premium, OE-quality diesel engine glow plug designed to ensure fast and reliable cold starts. Featuring a self-regulating coil to prevent overheating and available in multiple reach sizes, it guarantees optimal fit and performance for GM vehicles. Trusted by professionals and backed by GM, this glow plug maintains ignition efficiency and throttle response, making it a must-have for diesel engine longevity and reliability.

## Description

GM Genuine Parts Glow Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. ACDelco Professional Glow Plugs are specially designed to give diesel engines the heat they need for cold starts, and are a high quality replacement for many vehicles on the road today. They maintain ignition in all cylinders, optimizing throttle response. These premium aftermarket replacement glow plugs are manufactured to meet or exceed your expectations for fit, form, and function. 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).

Review: All good! - I've replaced two of eight so far (235k miles) with glow plugs from this seller. Ships in OEM box, identical to the ones removed. Both are working fine. Just ordered two more to have on-hand. 2015 2500HD Silverado LML Duramax. Generally easy fix if you remove the inner fender well. Most are very easy access but #8 was tight quarters. Not bad with a 3/8" swivel and/or flex driver. You'll need a 10mm deep socket for the injector, 8mm socket for the nut, and a scan tool of some sort to turn the CEL off after replacement. Don't drop that little nut. ~Hour job.
Review: Perfect fit (2016 Duramax) - Perfect fit because they are OEM. Saved a ton of money by installing myself. Watched a lot of YouTube horror stories on the process, but in the end it wasn’t bad. Took my time, applied gentle pressure, and the original glow plugs came out easily.

## Features

- Designed to give diesel engines the heat they need for cold starts
- GN-type regulating coil
- Self-regulating to control electrical flow from the battery as temperatures rise to avoid overheating
- Full range of reaches - from 21 mm to 40 mm - to meet chamber requirements in a wide variety of applications

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00496LXJ8 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #7,622 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Replacement Ignition Glow Plugs |
| Brand | GM GENUINE PARTS |
| Core Material | Copper |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,716) |
| Date First Available | October 26, 2010 |
| Exterior | Machined |
| Global Trade Identification Number | 00707773990704 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 1.44 ounces |
| Item model number | 12639701 |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 12639701 |
| Model | 12639701 |
| OEM Part Number | 12639701 |
| Product Dimensions | 6.2 x 1 x 1 inches |
| Thread Size | 10 millimeters |
| Top Material Type | Metal |
| UPC | 707773990704 |
| Vehicle Service Type | Truck |

## Product Details

- **Brand:** GM GENUINE PARTS
- **Core Material:** Copper
- **Thread Size:** 10 millimeters
- **Top Material Type:** Metal
- **Vehicle Service Type:** Truck

## Images

![GM Genuine Parts 9G (12639701) Glow Plug (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/51xkwWqxTUL.jpg)

## Questions & Answers

**Q: is this the right glow plug for replacement of a 97364968 unit?**
A: These are glowplugs for a 6.6L Duramax.

**Q: What's the difference between the 61g and the 9g glow plugs? Which is better?**
A: 9G IS THE NEW NUMBER

**Q: can these plugs work in a 2005 nissan urvan jn1lg4e25z0702191?**
A: These plugs do not admit a spark like a spark plug. They are for Diesel engines only.

**Q: Will these fit 2012 lml duramax**
A: yes. I used it in a 2008 Duramax engine and it works perfectly

## Customer Reviews

### ⭐⭐⭐⭐⭐ All good!
*by X***F on December 30, 2024*

I've replaced two of eight so far (235k miles) with glow plugs from this seller. Ships in OEM box, identical to the ones removed. Both are working fine. Just ordered two more to have on-hand. 2015 2500HD Silverado LML Duramax. Generally easy fix if you remove the inner fender well. Most are very easy access but #8 was tight quarters. Not bad with a 3/8" swivel and/or flex driver. You'll need a 10mm deep socket for the injector, 8mm socket for the nut, and a scan tool of some sort to turn the CEL off after replacement. Don't drop that little nut. ~Hour job.

### ⭐⭐⭐⭐⭐ Perfect fit (2016 Duramax)
*by M***. on August 19, 2025*

Perfect fit because they are OEM. Saved a ton of money by installing myself. Watched a lot of YouTube horror stories on the process, but in the end it wasn’t bad. Took my time, applied gentle pressure, and the original glow plugs came out easily.

### ⭐⭐⭐⭐⭐ Worked perfect
*by K***N on June 22, 2025*

Ordered for hubby Just what he needed

## Frequently Bought Together

- GM Parts GM Genuine Parts 9G Glow Plug (Pack of 1)
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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-02-03*