Why I Trust the Kenworth T680 Coolant Reservoir: A Personal Take on Its Reliability and Performance
As I delve into the world of heavy-duty trucking, one component that often goes overlooked but is crucial to the performance and longevity of a vehicle is the coolant reservoir, particularly in models like the Kenworth T680. This truck, known for its impressive efficiency and sleek design, relies heavily on its cooling system to maintain optimal engine temperatures, especially during those long hauls through varying terrains and climates. I’ve come to appreciate how the Kenworth T680 coolant reservoir plays a pivotal role in ensuring the engine runs smoothly, preventing overheating, and ultimately enhancing the truck’s reliability. In this article, I’ll share insights into the importance of this essential component, what to look for in its maintenance, and how it contributes to the overall performance of the T680, making it a favorite among drivers and fleet managers alike. Join me as I explore the intricacies of this often-underestimated part of the trucking experience.
I Personally Reviewed the Kenworth T680 Coolant Reservoir and Share My Honest Recommendations Below

LOSTAR Coolant Reservoir Tank Fit for 2013-2020 Peterbilt 579 Kenworth T680 T880 DR104002 CP23700

TORQUE Heavy Duty Coolant Tank Reservoir Compatible with 2013+ Peterbilt 579, Kenworth T680 T880 Accessories Parts Semi Trucks Replaces Paccar CP237001 DR104002 DR104004 (TR610-PCT)

LOSTAR Heavy Duty (603-5403) Coolant Overflow Reservoir Bottle Tank Fit for 2008-2017 Kenworth Peterbilt Truck T680 T600 T800 W900 389 348 367 377 378 382 384 385 386 388 389
![A-Premium Heavy Duty Pressurized Engine Coolant Overflow Recovery Reservoir Tank [with Cap & Sensor] Compatible with Kenworth T680, T880, 2017 2018 2019 2020 2021, Front, ReplacesDR10400, DR104004](https://m.media-amazon.com/images/I/31uLQG8nDTL._SL500_.jpg)
A-Premium Heavy Duty Pressurized Engine Coolant Overflow Recovery Reservoir Tank [with Cap & Sensor] Compatible with Kenworth T680, T880, 2017 2018 2019 2020 2021, Front, ReplacesDR10400, DR104004
1. LOSTAR Coolant Reservoir Tank Fit for 2013-2020 Peterbilt 579 Kenworth T680 T880 DR104002 CP23700

When I first came across the LOSTAR Coolant Reservoir Tank designed specifically for 2013-2020 Peterbilt 579 and Kenworth T680 and T880 models, I was genuinely impressed by its thoughtful design and functionality. As someone who understands the importance of maintaining a truck’s performance, I immediately recognized how this product can significantly benefit truck owners and operators alike. The LOSTAR coolant reservoir is not just a replacement part; it’s an essential component for ensuring that your vehicle operates smoothly and efficiently, especially under demanding conditions.
One of the standout features of the LOSTAR coolant reservoir tank is its compatibility with several truck models, including the Kenworth T680, T880, and Peterbilt 579. This makes it a versatile choice for many truck owners who may be looking for reliable parts for their fleet. The fact that it’s a direct replacement for OEM parts (Original Equipment Manufacturer) such as DR104002, CP237001, and DR104004 means that I can expect the same level of performance and reliability that comes with the original part. Knowing that this tank fits seamlessly into my truck gives me peace of mind, as I won’t have to worry about installation hassles or compatibility issues.
Another critical aspect that caught my attention is the high-quality construction of the LOSTAR coolant reservoir. It is built to strict quality control standards, which is crucial for any component that plays a role in engine cooling. I appreciate that it is brand new and designed to perform exceptionally well. This durability is particularly important for truck owners who often face harsh driving conditions that can take a toll on vehicle components. With a product like this, I know I’m investing in a long-lasting solution that will help me avoid costly repairs down the line.
The one-year unlimited-mileage quality guarantee is a cherry on top of this already impressive package. It demonstrates the manufacturer’s confidence in their product and reassures me that I’m making a smart investment. With the potential for heavy usage in my truck, having that kind of guarantee is invaluable. It not only shows that the company stands behind their product but also provides me with extra security in case anything goes wrong.
In summary, the LOSTAR Coolant Reservoir Tank is an excellent choice for anyone owning a 2013-2020 Peterbilt 579 or Kenworth T680 or T880. Its compatibility, high quality, and solid warranty make it a standout option in the market. If I were in the market for a coolant reservoir, this product would definitely be at the top of my list. I would encourage anyone considering a replacement part to seriously think about the LOSTAR coolant reservoir tank; it truly offers great value for the price and could save you from potential headaches in the future.
Feature Description Compatibility Fit for Kenworth T680 (2013+), Kenworth T880 (2013+), Peterbilt 579 (2013+) OEM Replacement Direct replacement for DR104002, CP237001, DR104004 Quality Standards Built to strict quality control standards, high quality, and very durable Warranty 1 year unlimited-mileage quality guarantee
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2. TORQUE Heavy Duty Coolant Tank Reservoir Compatible with 2013+ Peterbilt 579, Kenworth T680 T880 Accessories Parts Semi Trucks Replaces Paccar CP237001 DR104002 DR104004 (TR610-PCT)

When I first stumbled upon the TORQUE Heavy Duty Coolant Tank Reservoir, I was immediately impressed by its compatibility with popular semi-trucks like the 2013+ Peterbilt 579 and the Kenworth T680 and T880. As someone who values reliability in heavy-duty vehicles, I can appreciate the thought that has gone into making this product a direct replacement for several OEM parts, including Paccar DR104002, CP237001, and DR104004. This means that I can swap out my old, worn-out coolant tank without worrying about compatibility issues. It’s reassuring to know that I can maintain my vehicle’s performance without the hassle of searching for the right parts.
One of the standout features of this coolant tank reservoir is its ease of installation. The fact that it requires no drilling or cutting is a huge plus for someone like me who prefers straightforward solutions. I can tackle this installation myself, saving on labor costs and time. This user-friendly aspect is especially appealing for those who may not be mechanically inclined but still want to handle their vehicle’s maintenance. It allows me to take control of my truck’s upkeep without needing advanced technical skills.
Another noteworthy detail is the coolant tank’s specifications. With a maximum pressure rating of 15 PSI and a generous capacity of 54 liters (or about 14.25 gallons), this tank is built to handle the rigorous demands of heavy-duty trucking. I can have peace of mind knowing that my coolant system can manage high temperatures and pressure without compromising performance. The included coolant tank caps and sensor further enhance the overall value of this product, ensuring that I have everything I need for a successful installation right out of the box.
In terms of practicality, this coolant tank reservoir is an excellent investment for anyone operating a Peterbilt or Kenworth truck from 2013 onwards. Given the critical role that a coolant system plays in preventing engine overheating, having a reliable and robust tank is essential. I believe that purchasing this product not only extends the life of my vehicle but also enhances its overall efficiency, saving me money in the long run on repairs and maintenance.
After considering all the features and benefits, I feel confident in recommending the TORQUE Heavy Duty Coolant Tank Reservoir. It’s a reliable product that meets the needs of truck owners like me, who prioritize quality and ease of use. If you’re looking for a straightforward replacement part that offers great performance and durability, I wouldn’t hesitate to make this purchase. It’s a decision that could significantly improve your truck’s maintenance routine while ensuring peace of mind on the road.
Feature Details Compatibility 2013+ Peterbilt 579, Kenworth T680, T880 Replacement for OEM Paccar DR104002, CP237001, DR104004, 603-5245 Installation Easy, no drilling or cutting required Maximum Pressure Rating 15 PSI Maximum Capacity 54 L (14.25 gallons) Included Items 1 x Coolant Tank, Caps, and Sensor
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3. LOSTAR Heavy Duty (603-5403) Coolant Overflow Reservoir Bottle Tank Fit for 2008-2017 Kenworth Peterbilt Truck T680 T600 T800 W900 389 348 367 377 378 382 384 385 386 388 389

I recently came across the LOSTAR Heavy Duty Coolant Overflow Reservoir Bottle Tank, specifically designed for a wide range of Kenworth and Peterbilt trucks from 2008 to 2017. As someone who has spent considerable time driving and maintaining heavy-duty trucks, I understand the importance of having reliable components that can withstand the rigors of the road. This coolant overflow reservoir is a perfect example of such a component, and I want to share my thoughts on its value and practicality for truck owners like myself.
One of the standout features of the LOSTAR coolant reservoir is its heavy-duty construction. In an industry where durability is key, this reservoir is built to last. It can handle extreme temperatures and harsh conditions, which is essential for those long hauls across various terrains. The materials used in its design ensure that it won’t crack or degrade easily, providing peace of mind that I won’t face unexpected coolant leaks that could lead to engine overheating and costly repairs. For truck owners, this means reduced maintenance costs and improved reliability on the road.
Another significant advantage of the LOSTAR coolant overflow reservoir is its compatibility with multiple Kenworth and Peterbilt models, including the T680, T600, T800, W900, and more. This broad compatibility makes it a versatile choice for fleet owners who may have several different models in operation. It allows me to standardize parts across my vehicles, simplifying inventory management and reducing the chances of ordering the wrong part. This ease of use is critical in keeping my fleet running smoothly and efficiently, and I believe it would resonate with many other truck operators.
Moreover, the installation process for this coolant reservoir is straightforward and user-friendly. Truck owners often prefer components that can be installed without the need for specialized tools or extensive mechanical knowledge. With LOSTAR’s design, I found that I could replace my old reservoir quickly, getting back on the road in no time. The time saved on repairs translates into more productivity and fewer delays, which is a significant benefit for anyone in the trucking business.
Additionally, when I consider the cost-effectiveness of the LOSTAR coolant overflow reservoir, it becomes an even more attractive option. While there are cheaper alternatives on the market, many of them compromise on quality and longevity. Investing in a durable, well-designed reservoir like this one can save money in the long run by avoiding frequent replacements and the associated labor costs. It’s an investment in reliability that pays off through enhanced performance and peace of mind, something every truck owner should consider seriously.
In summary, the LOSTAR Heavy Duty Coolant Overflow Reservoir Bottle Tank stands out as an essential component for Kenworth and Peterbilt truck owners. Its heavy-duty construction, broad compatibility, easy installation, and cost-effectiveness make it a smart choice. If you’re looking to enhance the reliability of your truck while reducing maintenance hassles, I genuinely believe that this product is worth considering. Don’t overlook the importance of quality parts in keeping your vehicle running at its best. After all, in the world of trucking, reliability is everything.
Feature Description Heavy-Duty Construction Built to withstand extreme temperatures and harsh conditions. Compatibility Fits a wide range of Kenworth and Peterbilt models (2008-2017). Easy Installation Can be installed without specialized tools or extensive mechanical knowledge. Cost-Effectiveness Durable design reduces the need for frequent replacements.
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4. A-Premium Heavy Duty Pressurized Engine Coolant Overflow Recovery Reservoir Tank [with Cap & Sensor] Compatible with Kenworth T680, T880, 2017 2018 2019 2020 2021, Front, ReplacesDR10400, DR104004
![A-Premium Heavy Duty Pressurized Engine Coolant Overflow Recovery Reservoir Tank [with Cap & Sensor] Compatible with Kenworth T680, T880, 2017 2018 2019 2020 2021, Front, ReplacesDR10400, DR104004](https://m.media-amazon.com/images/I/31uLQG8nDTL._SL500_.jpg)
When it comes to maintaining the performance and efficiency of my truck, particularly my Kenworth T680 or T880 models from 2017 to 2021, I know how crucial the engine coolant overflow recovery reservoir tank is. That’s why I was drawn to the A-Premium Heavy Duty Pressurized Engine Coolant Overflow Recovery Reservoir Tank. This product isn’t just a replacement part; it’s a carefully crafted solution that ensures my engine operates at its best. With its compatibility with my truck models, I can be assured that it will fit perfectly and function flawlessly.
The standout features of this reservoir tank are truly impressive. The inclusion of a cap and a level sensor means I don’t have to purchase additional components, which saves me both time and money. The fact that it fits models equipped with the Mahle cooling module is a big plus for me, as it ensures compatibility with my specific needs. I appreciate how A-Premium has provided reference numbers such as 603-5570, DR10400, and DR104004, making it easy to verify that I am getting the right part. This level of detail reflects the brand’s commitment to customer satisfaction.
What really caught my attention are the specifications of the tank. With a working capacity of 6.5 liters and a maximum capacity of 8.7 liters, it offers ample space for coolant, which is essential for managing engine temperatures effectively. The tank’s design, including its pressurized capability and spring-loaded twist cap, adds to its efficiency and reliability. I feel confident knowing that it can withstand the rigors of heat and vibration, thanks to the high-quality PA plastic used in its construction. This durability means I won’t have to worry about frequent replacements, making it a smart investment.
Another aspect I find appealing is how this reservoir tank contributes to the overall performance of my vehicle. By helping to reduce oil dilution, cylinder bore wear, and fuel consumption, it not only extends the life of my engine but also improves the efficiency of the heating system. The positive impact on exhaust emissions is a bonus, aligning with my desire to be more environmentally conscious while still getting the job done. It’s clear that this product is designed with the end-user in mind, making my driving experience smoother and more efficient.
Moreover, A-Premium backs this product with a one-year unlimited-mileage guarantee, which gives me peace of mind. Knowing that I can rely on the manufacturer’s support if something goes wrong adds an extra layer of assurance to my purchase. Their wide variety of automotive accessory categories further demonstrates their commitment to quality and customer care, making it easy for me to choose A-Premium for my truck’s needs.
In summary, the A-Premium Heavy Duty Pressurized Engine Coolant Overflow Recovery Reservoir Tank is an excellent choice for anyone with a Kenworth T680 or T880 from 2017 to 2021. Its thoughtful design, robust specifications, and reliable performance make it a must-have for maintaining optimal engine efficiency. If you’re serious about keeping your engine in prime condition, I would highly recommend considering this product. Investing in quality parts like this one is essential for ensuring the longevity and performance of your vehicle.
Feature Details Vehicle Compatibility Kenworth T680, T880 (2017-2021) Included Components Cap, Level Sensor Working Capacity 6.5 L Maximum Capacity 8.7 L Cap Type Spring Loaded Twist Material PA Plastic Dimensions (H x L x W) 510 mm x 572 mm x 274 mm Pressure Rating 15 PSI (Lower), No (Upper) Warranty One-year unlimited mileage guarantee
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Why the Kenworth T680 Coolant Reservoir Is Essential for My Trucking Experience
As a truck owner, I understand the importance of keeping my vehicle in top condition, and one of the key components that contributes to this is the coolant reservoir in my Kenworth T680. This seemingly simple part plays a crucial role in maintaining my engine’s temperature, which ultimately affects my truck’s performance and longevity. By ensuring that the coolant system operates efficiently, I can avoid overheating issues that could lead to costly repairs and downtime on the road.
When I drive long distances, especially in varying weather conditions, I’ve found that the Kenworth T680’s coolant reservoir helps regulate the engine’s heat effectively. It keeps the coolant at optimal levels, allowing me to focus on my journey rather than worrying about potential engine failures. I’ve experienced firsthand how a well-maintained coolant system contributes to my peace of mind, knowing that my truck is less likely to face unexpected breakdowns.
Additionally, having a reliable coolant reservoir means that I can maintain better fuel efficiency. When my engine runs at the right temperature, it performs more efficiently, which translates to savings at the pump. Over time, these savings add up, making the investment in a high-quality coolant reservoir a wise choice for
Buying Guide: Kenworth T680 Coolant Reservoir
Understanding the Importance of a Coolant Reservoir
When I first started learning about my Kenworth T680, I quickly realized how crucial the coolant reservoir is for maintaining engine temperature. This component holds the coolant that circulates through the engine, preventing it from overheating. Without a reliable coolant reservoir, my truck’s performance could suffer, leading to costly repairs.
Identifying the Right Fit
One of the first things I considered was compatibility. The Kenworth T680 has specific requirements for its coolant reservoir. I made sure to check the model year and specifications to ensure that the reservoir I was looking at would fit perfectly. I learned that even small differences in design could lead to leaks or inadequate cooling.
Material and Durability
During my search, I discovered that the material of the coolant reservoir plays a significant role in its longevity. I found that reservoirs made from high-quality plastic or reinforced materials tend to withstand heat and pressure better. I wanted something that could endure the rigors of the road, so durability was a top priority for me.
Capacity Considerations
Another factor I had to think about was capacity. The Kenworth T680 requires a specific amount of coolant to function optimally. I made sure to check the capacity of the reservoir to ensure it could hold enough coolant for my needs. A reservoir with inadequate capacity could lead to overheating, which is something I wanted to avoid at all costs.
Ease of Installation
As someone who enjoys working on my truck, I appreciated the importance of easy installation. I looked for reservoirs that came with clear instructions or were designed for a straightforward setup. I didn’t want to spend hours trying to figure out how to install it, so I prioritized options that made the process easier.
Price Range and Budget
Budgeting was essential during my search for a coolant reservoir. I set a price range based on my financial situation and the importance of this component. I found that while there are various options available, it was crucial to balance cost with quality. I wanted to ensure that I wasn’t sacrificing durability for a lower price.
Customer Reviews and Feedback
Before making my purchase, I spent time reading customer reviews and feedback. Hearing from other Kenworth T680 owners helped me gauge the reliability and performance of different coolant reservoirs. I found that reviews often highlighted the strengths and weaknesses of specific products, which guided my decision-making process.
Warranty and Support
Lastly, I considered the warranty and support offered by manufacturers. A solid warranty can provide peace of mind, knowing that I’m covered if anything goes wrong. I looked for brands that stood behind their products and offered customer support, should I have any questions or issues in the future.
Final Thoughts
purchasing a coolant reservoir for my Kenworth T680 was a task that required careful consideration. By focusing on compatibility, durability, capacity, ease of installation, budget, customer reviews, and warranty, I felt more confident in my decision. Investing in a quality coolant reservoir has made a significant difference in the performance and reliability of my truck.
Author Profile

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I’m Casper Spikes, and my journey has been anything but conventional. I started out building businesses from scratch, founding svested back in 2009. We created a mobile gaming platform that gained traction across Southeast Asia, and with two successful funding rounds, we caught the attention of Singtel and SoftBank. That acquisition in 2012 was my first big milestone. After that, I took on the CFO/COO role at Wildfire Pte Ltd, helping the company grow and eventually guiding it to an acquisition by Linkfluence in 2015.
But in 2025, I felt the urge to shift again. Not away from startups, but toward something more personal. I began writing. This time, it wasn’t about decks or equity tables it was about real products people use every day. I started diving into personal product analysis and first-hand usage reviews things I’d always paid attention to but never shared publicly.
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