- Home Page /
- Automotive /
- Automotive Replacement Parts /
- Engine Cooling & Climate Control /
- Radiators /
- GM Genuine Parts 21649 (22840116) Radiator
0 ratings
Item #:
1159618
GM Genuine Parts 21649 (22840116) Radiator
90% of respondents would recommend this to a friend
Item #:
1159618
GBP 266
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Wednesday, October 07
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
ACDelco GM Original Equipment Radiators are GM-recommended replacements for your vehicles original components ensuring the same performance, durability, and service life you expect from General Motors.
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
OEM Quality Assurance
GM Genuine Parts 21649 Radiator meets original equipment manufacturer standards, ensuring optimal fit and function for your vehicle, providing reliability and peace of mind for your car maintenance.
Durable Construction
Built with robust materials, the radiator is designed to withstand high temperatures and resist corrosion, enhancing longevity and reducing replacement frequency for a better investment over time.
Perfect Fit
Engineered specifically for certain GM models, the radiator guarantees easy installation and compatibility, saving time and effort during replacement while ensuring efficient cooling performance for your engine.
Product Details
| Brand Name | GM GENUINE PARTS |
| Unit Count | 1 Count |
| Manufacturer | ACDelco |
| UPC | 707773890219 036666394900 |
| Number of Items | 1 |
| Global Trade Identification Number | 00036666394900, 00707773890219 |
| Included Components | Radiator |
| Item Type Name | Radiator |
| Model | 21649 |
| Part Number | 21649 |
| Item Weight | 15.4 pounds (6.99 kg) |
| Mounting Type | Chassis Mount |
| Cooler Heatsink Material | Aluminum |
| Brand | GM GENUINE PARTS |
Who Should Buy?
-
GM Vehicle Owners
This radiator is specifically designed for General Motors vehicles, ensuring a perfect fit and optimal performance.
-
DIY Mechanics
Ideal for DIY enthusiasts who prefer original equipment parts for reliable installation and functionality in their repairs.
-
Restoration Projects
Great choice for classic car restoration projects requiring authentic GM parts to maintain vehicle value and integrity.
-
Non-GM Vehicles
Not suitable for vehicles outside the GM brand, leading to fitment issues and potential performance problems.
Product Description
GM Genuine Parts 21649 (22840116) Radiator
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the GM Genuine Parts 21649 Radiator made of?
Answer: The GM Genuine Parts 21649 Radiator is constructed from high-quality aluminum and plastic materials. This design ensures optimal heat dissipation, which is crucial for engine cooling efficiency. Aluminum provides excellent thermal conductivity, while the plastic components are lightweight and resistant to corrosion. A radiator made from these materials is particularly effective in prolonging the lifespan of your vehicle's cooling system, making it essential for maintaining performance during both everyday driving and extreme conditions. -
Question:
What vehicles is the GM Genuine Parts 21649 Radiator compatible with?
Answer: The GM Genuine Parts 21649 Radiator is primarily compatible with specific models from the Chevrolet and GMC brands, such as the Chevrolet Silverado and GMC Sierra. This compatibility ensures that the radiator fits perfectly and functions optimally within those vehicles’ cooling systems. Always refer to your vehicle's manual or consult with a professional to confirm compatibility, as using the correct radiator is essential for maintaining engine temperature and preventing overheating. -
Question:
How do I know if my radiator needs replacement?
Answer: Signs that indicate your radiator may need replacement include visible leaks, overheating engines, and coolant discoloration. If you notice puddles of coolant beneath your vehicle, this could be a sign of a failing radiator. Additionally, if your car's temperature gauge consistently reads higher than normal or you see steam from the engine area, it's time to consider a replacement. Addressing these issues promptly can prevent more serious engine damage, making a reliable radiator crucial for your vehicle's health. -
Question:
What tools do I need to install the GM Genuine Parts 21649 Radiator?
Answer: To install the GM Genuine Parts 21649 Radiator, you'll need basic hand tools such as wrenches, pliers, and screwdrivers. A socket set can also be helpful for loosening and tightening bolts. It's advisable to have a funnel on hand for pouring coolant and a container to catch any fluids during the installation. Having these tools ready ensures a smoother installation process, allowing you to effectively maintain your vehicle's cooling performance. -
Question:
Is the GM Genuine Parts 21649 Radiator a direct-fit replacement?
Answer: Yes, the GM Genuine Parts 21649 Radiator is designed as a direct-fit replacement for select Chevrolet and GMC vehicles. This means it is engineered to match the original part specifications, ensuring a seamless installation without the need for modifications. Using a direct-fit radiator provides the best fitment and functionality, maintaining the efficiency of the cooling system and allowing for optimal engine performance. -
Question:
What is the role of the radiator in a vehicle's cooling system?
Answer: The radiator plays a critical role in a vehicle's cooling system by dissipating heat from the engine coolant. As the coolant circulates through the engine, it absorbs heat and then flows into the radiator, where it is cooled by airflow. This process keeps the engine at a stable operating temperature, preventing overheating. A well-functioning radiator contributes to your vehicle's overall efficiency, longevity, and performance, making it essential to maintain. -
Question:
Can I flush my radiator myself?
Answer: Yes, you can flush your radiator yourself, and it is a relatively straightforward process. To flush the radiator, you'll need to drain the old coolant, then use a radiator flush solution to clean any deposits and buildup inside. After flushing, rinse with water and refill with a new, proper coolant mix. Regularly flushing your radiator helps maintain optimal cooling efficiency and prevent corrosion, ensuring a longer life for your engine’s cooling system. -
Question:
What are the benefits of using GM Genuine Parts over aftermarket parts?
Answer: Choosing GM Genuine Parts, like the 21649 Radiator, ensures compatibility, quality, and reliability specific to your vehicle. Unlike many aftermarket parts, GM Genuine Parts are designed to meet the manufacturer’s standards, which means they undergo rigorous testing and quality checks. This results in superior performance and durability, helping to maintain your vehicle’s warranty. For critical components such as the radiator, opting for genuine parts can prevent future problems and ensure your vehicle operates smoothly. -
Question:
Where can I buy GM Genuine Parts 21649 Radiator?
Answer: You can buy the GM Genuine Parts 21649 Radiator from Ubuy, a reliable online retailer that offers a wide range of automotive parts. Ubuy provides international customers the convenience of shopping for genuine parts directly from the comfort of their home. With a user-friendly platform and efficient service, Ubuy makes it easy to find the right radiator for your vehicle. -
Question:
How is the GM Genuine Parts 21649 Radiator tested for quality?
Answer: The GM Genuine Parts 21649 Radiator undergoes a series of rigorous tests to ensure it meets high-quality standards. Factors such as pressure resistance, thermal performance, and corrosion resistance are evaluated under various conditions. This comprehensive testing helps identify any potential issues and ensures that the radiator performs reliably in real-world automotive applications. By choosing a radiator that has been thoroughly tested, drivers can enjoy peace of mind knowing their vehicle's cooling system is supported by a trusted part.
GM GENUINE PARTS Radiators Editorial Review
The GM Genuine Parts 21649 Radiator has received positive feedback from customers. It is noted to be a perfect fit for various GMC and Chevrolet models, such as the 2005 GMC Sierra 1500 Denali and the 2001 Silverado 2500HD. Customers have also mentioned that this radiator comes with both oil and transmission coolers. However, some customers have mentioned that it does not have a petcock drain, but it seems to be a common issue. Overall, this radiator is recommended for its compatibility and fit.
Customer Reviews & Ratings
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
Pros
- Perfect fit for various GMC and Chevrolet models
- Comes with oil and transmission coolers
Cons
- Lacks a petcock drain
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
AG
Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
H
Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer
“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · 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.
GBP 266
Order now and get it around Wednesday, October 07
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
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
- GM recommended and designed radiator
- Corrosion-resistant aluminum designed core for long-lasting performance
- Optimizes radiator's durability with high heat transfer to weight ratio
- Manufactured to fit specifications for GM OE
- High-quality replacement part for your vehicle's original radiator
- Provides optimal heat transfer characteristics
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.