Looking for the best GMC Sierra cooling parts? We’ve got you covered with a curated list of 10 top-quality options to keep your truck running smoothly and efficiently.
Keeping your GMC Sierra cool is key to its performance and longevity. Overheating can cause serious damage, so having the right cooling parts is essential. We’ve gathered the best options to help you stay ahead.
From oil coolers to hoses, these parts are designed to fit perfectly and work efficiently. They’re tested to handle tough conditions, ensuring your truck runs smoothly. You’ll find reliable solutions that keep your engine and transmission safe.
Whether you’re upgrading or replacing, this guide has you covered. Discover top-quality parts that are easy to install and built to last. Get ready to drive with confidence and keep your Sierra in top shape.
List of Top 10 GMC Sierra Cooling Parts
| Image | Title | Best For | Price |
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GM Genuine Parts 15203889 Engine Oil Cooler Gasket |
This GM Genuine Parts Engine Oil Cooler Gasket is perfect for anyone who owns a Chevrolet, Buick, GMC, or Cadillac. It’s designed to prevent leaks and keep your vehicle running smoothly. |
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GM Genuine Parts 85724972 Engine Oil Cooler Hose |
This GM Genuine Parts Engine Oil Cooler Hose is perfect for anyone who wants to keep their Chevrolet, Buick, GMC, or Cadillac running smoothly. It’s designed to handle high temps and engine movement, so your car stays cool and reliable. |
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GM Genuine Parts 85628205 Multi-Purpose Fluid Cooler Seal |
This GM Genuine Parts 85628205 Multi-Purpose Fluid Cooler Seal is perfect for car owners who want reliable, high-quality parts. It’s designed for Chevrolet, Buick, GMC, or Cadillac vehicles, ensuring a perfect fit and lasting performance. |
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SYudwen 15-11125 Engine Coolant Thermostat Housing Assembly Compatible with 2014 2015 2016 2017 2018 2019 2020 Chevy Silverado, GMC Sierra 4.3 5.3 5.3L 6.2L Thermostat Housing Assembly |
This thermostat housing assembly is perfect for Chevy and GMC owners who need a reliable replacement part. It’s easy to install and built to last, keeping your engine cool and running smoothly. |
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Mishimoto MMTC-GMT-99 Transmission Cooler, Compatible with Chevrolet Silverado & Fits GMC Sierra, 1999-2013 |
This Mishimoto Transmission Cooler is perfect for Chevrolet Silverado and GMC Sierra owners who want to improve their truck’s cooling system. It’s a direct fit for 1999-2013 models, offering a huge increase in cooling capacity and better heat transfer. |
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125068000 Automatic Transmission Fluid Thermal Bypass Valve Compatible with Chevrolet Silverado 1500 2014 2015 2016 2017 2018 Replacement for GM 6L80, GMC Sierra 1500, Yukon, Tahoe, Escalade |
This thermal bypass valve is perfect for Chevrolet Silverado 1500, GMC Sierra 1500, Yukon, Tahoe, and Escalade owners with 2014-2018 models. It’s ideal for those needing a reliable replacement to prevent transmission overheating and ensure smooth performance. |
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918-249 Automatic Transmission Oil Cooler Compatible With Chevy Silverado GMC Sierra 2500 HD 3500 Classic Replaces# 89040217 GM4050106 |
This 918-249 Automatic Transmission Oil Cooler is perfect for Chevy and GMC truck owners who need a reliable replacement part. It’s easy to install and built to last, ensuring your vehicle runs smoothly. |
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A-Premium Automatic Transmission Oil Cooler Line Hose Assembly Compatible with Chevrolet Silverado 2500 3500 GMC Sierra 2500 HD 3500 Classic V8 6.6L |
This A-Premium Automatic Transmission Oil Cooler Line Hose Assembly is perfect for owners of Chevrolet Silverado 2500/3500 HD and GMC Sierra 2500/3500 HD trucks from 2006 to 2010. It’s a direct replacement for V8 6.6L engines with 1000 transmissions, ensuring a reliable fit and peace of mind on the road. |
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NEWZQ Ext Trans Oil Cooler Replacement for GMC Sierra Chevy Silverado 2500HD 3500HD 6.6L 2017-2019 84173164 19153 |
This NEWZQ Ext Trans Oil Cooler is perfect for owners of 2017-2019 GMC Sierra or Chevy Silverado 2500HD/3500HD trucks with a 6.6L V8 diesel engine. It’s an exact replacement for OE parts 19153, 84173164, and 4050132, fitting High Country, LT, LTZ, WT, Base, Denali, SLE, and SLT models. |
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A-Premium Inlet & Outlet Automatic Transmission Oil Cooler Line Hose Assembly Compatible with Chevrolet Silverado 1500 2009-2013 & GMC Sierra 1500 2007-2013 |
This A-Premium Oil Cooler Line is perfect for Chevrolet Silverado 1500 (2009-2013) and GMC Sierra 1500 (2007-2013) owners with automatic transmissions. It’s ideal for those needing a reliable, leak-free solution to keep their transmission cool and efficient. |
Detailed Reviews
Discover the top 10 GMC Sierra Cooling Parts handpicked for performance and reliability. Each part is expert-reviewed and backed by customer feedback, ensuring you get the best value. Whether you need durability, affordability, or optimal cooling, this guide has you covered. Dive in to find the perfect fit for your GMC Sierra and keep your vehicle running smoothly and efficiently.
1. GM Genuine Parts 15203889 Engine Oil Cooler Gasket

Keep your engine cool and prevent leaks with the GM Genuine Parts Engine Oil Cooler Gasket. This essential component is designed to fit your GM vehicle perfectly.
GM engineers design and validate these parts for your Chevrolet, Buick, GMC, or Cadillac. They work seamlessly with your vehicle’s safety systems. No compromises on safety or performance.
Original equipment parts like this gasket are updated regularly by GM. They integrate new materials and technologies to ensure your vehicle runs smoothly. Trust GM for reliable, high-quality parts.
| Pros | Cons |
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Perfect For:
This GM Genuine Parts Engine Oil Cooler Gasket is perfect for anyone who owns a Chevrolet, Buick, GMC, or Cadillac. It’s designed to prevent leaks and keep your vehicle running smoothly.
Ready to Purchase?
2. GM Genuine Parts 85724972 Engine Oil Cooler Hose

The GM Genuine Parts 85724972 Engine Oil Cooler Hose is a reliable and durable component for your vehicle. It helps keep your engine oil cool, ensuring optimal performance. This hose is designed to last.
It can handle high-temperature oil transfer and engine movement, making it a perfect fit for your Chevrolet, Buick, GMC, or Cadillac. GM engineers test and validate these parts to meet strict standards.
This engine oil cooler hose is a genuine GM part, formerly known as ACDelco GM Original Equipment. It’s built to handle the demands of your vehicle, keeping your engine running smoothly.
| Pros | Cons |
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Perfect For:
This GM Genuine Parts Engine Oil Cooler Hose is perfect for anyone who wants to keep their Chevrolet, Buick, GMC, or Cadillac running smoothly. It’s designed to handle high temps and engine movement, so your car stays cool and reliable.
Ready to Purchase?
3. GM Genuine Parts 85628205 Multi-Purpose Fluid Cooler Seal

GM Genuine Parts offers the 85628205 Multi-Purpose Fluid Cooler Seal, a reliable and high-quality component. This part is designed and tested to meet strict standards, ensuring optimal performance. It’s backed by General Motors, so you can trust its quality.
GM Engineers create these parts specifically for your Chevrolet, Buick, GMC, or Cadillac. They regularly update designs to include new materials and technologies, keeping your vehicle running smoothly.
Some GM Genuine Parts may have been ACDelco GM Original Equipment (OE) in the past. This seal is engineered to fit and function perfectly in your vehicle, providing long-lasting reliability.
| Pros | Cons |
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Perfect For:
This GM Genuine Parts 85628205 Multi-Purpose Fluid Cooler Seal is perfect for car owners who want reliable, high-quality parts. It’s designed for Chevrolet, Buick, GMC, or Cadillac vehicles, ensuring a perfect fit and lasting performance.
Ready to Purchase?
4. SYudwen 15-11125 Engine Coolant Thermostat Housing Assembly Compatible with 2014 2015 2016 2017 2018 2019 2020 Chevy Silverado, GMC Sierra 4.3 5.3 5.3L 6.2L Thermostat Housing Assembly

The SYudwen 15-11125 Engine Coolant Thermostat Housing Assembly is a direct replacement for your vehicle’s original part. It fits 2014-2020 Chevy Silverado, GMC Sierra, and more, ensuring a perfect match for your cooling system.
Made from premium materials, it resists high temperatures and extreme pressure. Easy to install, it keeps your engine running at the right temperature, boosting performance and longevity.
| Pros | Cons |
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Perfect For:
This thermostat housing assembly is perfect for Chevy and GMC owners who need a reliable replacement part. It’s easy to install and built to last, keeping your engine cool and running smoothly.
Ready to Purchase?
5. Mishimoto MMTC-GMT-99 Transmission Cooler, Compatible with Chevrolet Silverado & Fits GMC Sierra, 1999-2013

The Mishimoto MMTC-GMT-99 Transmission Cooler is a direct fit for 1999-2013 Chevrolet Silverado and GMC Sierra. It boosts cooling capacity by 521% with its larger core. This upgrade ensures your truck runs cooler and performs better.
Its frontal surface area is 278% bigger, moving more heat at any speed. The stacked-plate core balances airflow and cooling, keeping your transmission safe.
The cooler includes -6ORB quick-disconnects for easy swaps. You can also switch to -6AN fittings if needed. This makes installation and customization simple and fast.
| Pros | Cons |
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Perfect For:
This Mishimoto Transmission Cooler is perfect for Chevrolet Silverado and GMC Sierra owners who want to improve their truck’s cooling system. It’s a direct fit for 1999-2013 models, offering a huge increase in cooling capacity and better heat transfer.
Ready to Purchase?
6. 125068000 Automatic Transmission Fluid Thermal Bypass Valve Compatible with Chevrolet Silverado 1500 2014 2015 2016 2017 2018 Replacement for GM 6L80, GMC Sierra 1500, Yukon, Tahoe, Escalade

Keep your transmission cool and running smoothly with this Automatic Transmission Fluid Thermal Bypass Valve. It’s designed to fit 2014-2018 GM 6L80 models, including popular vehicles like the Silverado 1500, Sierra 1500, and Tahoe.
This valve maximizes fluid flow to the transmission cooler, preventing overheating and reducing the risk of damage. It’s made from durable, heat-resistant materials to handle tough conditions and ensure long-lasting performance.
Easy to install, built to last, and backed by after-sales support. If you have any issues, we’re here to help.
| Pros | Cons |
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Perfect For:
This thermal bypass valve is perfect for Chevrolet Silverado 1500, GMC Sierra 1500, Yukon, Tahoe, and Escalade owners with 2014-2018 models. It’s ideal for those needing a reliable replacement to prevent transmission overheating and ensure smooth performance.
Ready to Purchase?
7. 918-249 Automatic Transmission Oil Cooler Compatible With Chevy Silverado GMC Sierra 2500 HD 3500 Classic Replaces# 89040217 GM4050106

Keep your truck running cool with the 918-249 Automatic Transmission Oil Cooler. It’s compatible with Chevy and GMC trucks, including Silverado and Sierra models. This part is easy to install and built to last.
High-quality materials ensure durable performance. The cooler is 100% tested before leaving the factory, meeting OEM quality standards. You can trust it to keep your transmission running smoothly.
We stand behind our product with a 12-month service guarantee. Enjoy hassle-free returns and a refund policy for added peace of mind. Buy with confidence and keep your truck on the road.
| Pros | Cons |
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Perfect For:
This 918-249 Automatic Transmission Oil Cooler is perfect for Chevy and GMC truck owners who need a reliable replacement part. It’s easy to install and built to last, ensuring your vehicle runs smoothly.
Ready to Purchase?
8. A-Premium Automatic Transmission Oil Cooler Line Hose Assembly Compatible with Chevrolet Silverado 2500 3500 GMC Sierra 2500 HD 3500 Classic V8 6.6L

Keep your truck running cool with the A-Premium Automatic Transmission Oil Cooler Line Hose Assembly. It’s a direct replacement for Chevrolet Silverado 2500/3500 HD and GMC Sierra 2500/3500 HD models, 2006-2010. Made of steel and rubber, it’s 38 inches long and built to last.
Buy with confidence—A-Premium offers a one-year unlimited-mileage guarantee. Check compatibility before ordering to ensure it fits your vehicle perfectly.
| Pros | Cons |
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Perfect For:
This A-Premium Automatic Transmission Oil Cooler Line Hose Assembly is perfect for owners of Chevrolet Silverado 2500/3500 HD and GMC Sierra 2500/3500 HD trucks from 2006 to 2010. It’s a direct replacement for V8 6.6L engines with 1000 transmissions, ensuring a reliable fit and peace of mind on the road.
Ready to Purchase?
9. NEWZQ Ext Trans Oil Cooler Replacement for GMC Sierra Chevy Silverado 2500HD 3500HD 6.6L 2017-2019 84173164 19153

The NEWZQ Ext Trans Oil Cooler is a direct replacement part for your truck. It fits GMC Sierra and Chevy Silverado models. This part works for 2500HD and 3500HD trucks from 2017 to 2019.
It replaces OE part numbers like 19153 and 84173164. The cooler is made for 6.6L V8 diesel engines. It ensures optimal performance for your vehicle.
This oil cooler is easy to install. It is a reliable solution for cooling needs. Keep your truck running smoothly with this part.
| Pros | Cons |
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Perfect For:
This NEWZQ Ext Trans Oil Cooler is perfect for owners of 2017-2019 GMC Sierra or Chevy Silverado 2500HD/3500HD trucks with a 6.6L V8 diesel engine. It’s an exact replacement for OE parts 19153, 84173164, and 4050132, fitting High Country, LT, LTZ, WT, Base, Denali, SLE, and SLT models.
Ready to Purchase?
10. A-Premium Inlet & Outlet Automatic Transmission Oil Cooler Line Hose Assembly Compatible with Chevrolet Silverado 1500 2009-2013 & GMC Sierra 1500 2007-2013

Keep your truck’s transmission cool and running smoothly with the A-Premium Oil Cooler Line. This sturdy assembly is built to last and fits specific Chevrolet and GMC models. It’s designed for automatic transmissions only, so check your vehicle’s compatibility before buying.
The corrosion-resistant material ensures leak-free performance, while precise engineering keeps oil temperatures in check. This part is easy to install and works efficiently.
With a one-year guarantee, you can drive with confidence. A-Premium offers reliable parts for a worry-free journey. Hit the road knowing your transmission is well-protected.
| Pros | Cons |
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Perfect For:
This A-Premium Oil Cooler Line is perfect for Chevrolet Silverado 1500 (2009-2013) and GMC Sierra 1500 (2007-2013) owners with automatic transmissions. It’s ideal for those needing a reliable, leak-free solution to keep their transmission cool and efficient.
Ready to Purchase?
Buying Guide
Keeping your GMC Sierra cool is key to its performance and longevity. Overheating can cause serious damage, so having the right cooling parts is essential. We’ve gathered the best options to help you stay ahead.
Factors to Consider When Buying GMC Sierra Cooling Parts:
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Compatibility:
Make sure the part fits your GMC Sierra’s make, model, and year. Check for specific engine types to avoid mismatches. -
Quality:
Choose genuine or high-quality aftermarket parts that are tested for durability. Look for OEM standards to ensure reliability. -
Material:
Opt for parts made from heat-resistant materials like steel, rubber, or aluminum. These handle tough conditions better. -
Ease of Installation:
Pick parts that are easy to install to save time and effort. Some come with quick-disconnects for added convenience. -
Warranty:
Look for products with a warranty or guarantee. This ensures peace of mind and protection against defects. -
Performance:
Select parts that boost cooling efficiency, like larger cores or better airflow designs. This keeps your engine and transmission safe. -
Price:
Compare prices to find the best value. Balance cost with quality to avoid frequent replacements.
With these factors in mind, you’ll find the perfect cooling parts for your GMC Sierra. Drive with confidence and keep your truck in top shape!