GM Genuine Parts 9G (12639701) Glow Plug (Pack of 1)

GM Genuine Parts and ACDelco Glow Plugs are designed to give diesel engines optimal heat for cold starts and throttle response.

GMGENUINEPARTS

Item #: 3451792

GM Genuine Parts 9G (12639701) Glow Plug (Pack of 1)

Item #: 3451792

NZD 58

Price Details

Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )

^{*All items will import from US}

Availability : In stock

Imported from USA store

QTY:

Order now and get it around Saturday, August 08

Secured transaction

Our Top Logistics Partners

GM Genuine Parts and ACDelco Glow Plugs are designed to give diesel engines optimal heat for cold starts and throttle response.

U-Care Warranty:

None

Select a Plan

Buy Now Pay Later

Fast
Shipping

Free
Return^*

Secure Packaging

100% Original Products

PCI DSS Compliance

ISO 27001 Certified

Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Genuine Quality

Crafted by GM, ensuring optimal performance and reliability. Trusted by vehicle manufacturers for peace of mind and longevity in vehicle systems.

Easy Installation

Designed to fit seamlessly into compatible GM models, reducing installation time and giving DIY enthusiasts confidence with straightforward compatibility.

Enhanced Efficiency

Improves engine performance by ensuring reliable ignition. Helps maintain smooth operation during cold starts, addressing common issues faced by drivers in cold climates.

Product Details

Designed for diesel engines to provide heat for cold starts
Self-regulating GN-type coil to control electrical flow and prevent overheating
Offers a full range of reaches from 21 mm to 40 mm for various applications
Backed by General Motors and tested to rigorous standards
ACDelco Professional Glow Plugs maintain ignition in all cylinders for optimal throttle response
Manufactured to meet or exceed expectations for fit, form, and function

Brand Name	GM GENUINE PARTS
Manufacturer Part Number	12639701
Global Trade Identification Number	00707773990704
UPC	707773990704
OEM Equivalent Part Number	12639701
Model Number	12639701
Unit Count	1.0 Count
Included Components	Auto Part
Item Type Name	Automotive Part
Item Weight	0.09 Pounds (40 grams)
Manufacturer	ACDelco
Thread Size	10 millimeters
Compatible with Vehicle Type	Truck
Automotive Fit Type	Vehicle Specific Fit
Core Material	Copper
Top Material Type	Metal
Brand	GM GENUINE PARTS
Vehicle Service Type	Truck

Who Should Buy?

Diesel Vehicle Owners
Ideal for those with diesel engines requiring reliable performance and efficient cold start capabilities.
Mechanics and Technicians
Suitable for professionals needing high-quality parts for vehicle repairs and maintenance services.
Fleet Operators
Beneficial for businesses managing diesel fleets, ensuring optimal engine performance across multiple vehicles.

Gasoline Vehicle Owners
Not suitable for gasoline engines, as they do not use glow plugs for ignition.

Product Description

GM Genuine Parts 9G (12639701) Glow Plug (Pack of 1)

Have any Query? Chat with us

Product Buying Guide

When it comes to starting a diesel engine in cold weather, the GM Genuine Parts 9G Glow Plug is a reliable solution. Designed with a self-regulating GN-type coil and a broad reach range to meet various application needs, this product ensures optimal performance. Here's a comprehensive buying guide to help you understand the key features, benefits, usage scenarios, competitor comparison, user reviews, price analysis, and buying considerations to make an informed decision. Continue Reading

Customer Questions & Answers

Question: What are the specifications of the GM Genuine Parts 9G Glow Plug?

Answer: The GM Genuine Parts 9G Glow Plug is designed for optimal performance in diesel engines. It is engineered to provide quick heating, ensuring smooth ignition even in cold weather. Made with high-quality materials, it features a robust construction that can withstand extreme engine conditions. This glow plug is compatible with various GM diesel engines, making it a reliable choice for vehicle owners looking for performance and efficiency in their engine's start-up.
Question: How do I know if I need to replace my glow plug?

Answer: Symptoms of a failing glow plug can include rough engine starts, increased emissions, and decreased fuel efficiency. If your vehicle takes longer to start, especially in colder temperatures, it may indicate that the glow plug is malfunctioning. Performing a diagnostic test on your vehicle can confirm a glow plug issue. By replacing the faulty glow plug, you can ensure better engine performance and reduced emissions.
Question: Can I use GM Genuine Parts 9G Glow Plug in any vehicle?

Answer: The GM Genuine Parts 9G Glow Plug is specifically designed for GM diesel engines. While it may fit in non-GM vehicles, using manufacturer-specific components ensures compatibility and optimal performance. It's important to check your vehicle's specifications and owner's manual to confirm the correct glow plug fitment. This ensures that you maintain efficient performance and longevity in your engine's operation.
Question: What is the role of a glow plug in a diesel engine?

Answer: Glow plugs play a crucial role in diesel engines by preheating the combustion chamber, which helps ignite the fuel-air mixture. This is especially important in cold weather, where the diesel fuel might not ignite as easily. A functioning glow plug allows for quicker engine starts, smoother operation, and reduces wear on components by minimizing hard starting conditions. As such, maintaining healthy glow plugs is vital for overall engine efficiency and longevity.
Question: How do I install the GM Genuine Parts 9G Glow Plug?

Answer: Installing the GM Genuine Parts 9G Glow Plug requires basic tools and some mechanical knowledge. First, ensure the engine is cool and disconnect the battery. Then, locate the glow plug in your engine, remove any necessary components for access, and unscrew the old glow plug. Install the new glow plug gently, ensuring it is tightened to the manufacturer’s specifications. Reconnect everything carefully, and you're ready to go. This installation process can significantly enhance engine performance.
Question: What are the benefits of using GM Genuine Parts over aftermarket options?

Answer: Choosing GM Genuine Parts ensures that you are using components specifically designed for your vehicle. These parts meet stringent quality standards set by GM, guaranteeing optimal performance and fit. They often come with better reliability compared to aftermarket alternatives, which may vary in quality. In critical applications like glow plugs, using OEM parts can lead to better engine performance, fuel efficiency, and a longer lifespan for your engine components.
Question: How does the glow plug affect fuel efficiency?

Answer: A functioning glow plug ensures that the diesel fuel ignites quickly and efficiently, particularly in cold conditions. If the glow plug fails or is underperforming, you may experience difficulty starting the engine, leading to unnecessary fuel consumption as the engine struggles to operate. By replacing a faulty glow plug with the GM Genuine Parts 9G Glow Plug, you can improve fuel efficiency, enhance engine performance, and ultimately save on fuel costs.
Question: Can I test the functionality of my glow plugs?

Answer: Yes, you can test the functionality of your glow plugs using a multimeter. Disconnect the glow plugs from the electrical harness and measure their resistance — a good glow plug should show a low resistance reading, typically between 0.5 and 3 ohms. High resistance or an open circuit indicates that the glow plug is defective and needs replacement. Regular testing helps maintain optimal engine performance and prevents starting issues.
Question: Where can I buy GM Genuine Parts 9G Glow Plug (Pack of 1) in New Zealand?

Answer: You can purchase the GM Genuine Parts 9G Glow Plug (Pack of 1) from Ubuy, a reliable platform that offers a variety of genuine automotive parts. With Ubuy, you can ensure that you're getting authentic products that meet the quality standards set by GM, enhancing your shopping experience.
Question: What is the expected lifespan of a glow plug?

Answer: The lifespan of a glow plug can vary depending on engine conditions and usage, but generally, they can last anywhere from 60,000 to 150,000 kilometers. Factors such as frequent cold starts, poor fuel quality, and engine maintenance can impact their longevity. Regular checks and timely replacements of glow plugs like the GM Genuine Parts 9G can help prevent engine performance issues and ensure efficient fuel combustion.

GMGENUINEPARTS Glow Plugs 12639701 Editorial Review

No editorial reviews found

Customer Reviews & Ratings

5.0

1 customers ratings

5 Star

100%
4 Star

0%
3 Star

0%
2 Star

0%
1 Star

0%

Review this product

Share your thoughts with other customers

Platform Trust & Buyer Confidence

4.1/5 355 reviews

Read reviews

Ranee

Verified buyer

“Paint ordered from USA, u buy got the product to me in New Zealand in approx a week”

22 July 2026 · via Trustpilot

NordVPN

Verified buyer

“very speedy delivery,tracking info was superb-best experikence ever!!!”

24 June 2026 · via Trustpilot

Nicholas

Verified buyer

“Love what I received and ordered found that usa clothes are more better quality and look better than the same clothes in my country but are harder to find here recommend ubuy 100%”

22 June 2026 · via Trustpilot

Dneah

Verified buyer

“Product came earlier than expected (shipped from US to NZ), in about 3 weeks. No damages and product was exactly as advertised!”

15-Jul-26 · via Trustpilot

Tania

Verified buyer

“Easy to order, easy to track and the product is great to use. Also, the person-to-person (not automated) phone call I got to confirm that I'd received the item was wonderful ??”

11-Jul-26 · via Trustpilot

Secure Checkout Global Delivery Easy Returns Genuine Products

Product Price History

Important information

Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

NZD 58

Order now and get it around Saturday, August 08

QTY:

Secured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners

Fastest cross-border delivery

Features & Benefits

Optimizes throttle response
Premium aftermarket replacement
Self-regulating to avoid overheating
Full range of reaches for various applications

Ubuy Assurance

Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns ^*, and secure packaging on every order.

Platform Trust & Buyer Confidence

GM Genuine Parts 9G (12639701) Glow Plug (Pack of 1)