Why the Kenworth T680 Coolant Reservoir is a Game Changer: My Personal Experience and Expert Insights

As a truck enthusiast and dedicated driver, I’ve always marveled at the intricate engineering that goes into heavy-duty vehicles like the Kenworth T680. Among its many impressive features, the coolant reservoir stands out as a crucial component that plays a vital role in maintaining optimal engine performance. I’ve often found myself pondering the importance of this seemingly simple part, which ensures that the engine runs cool and efficiently, ultimately extending the life of the vehicle. In this article, I want to share my insights into the Kenworth T680 coolant reservoir, exploring its design, functionality, and the essential role it plays in the overall health of this remarkable truck. Whether you’re a seasoned driver or new to the world of trucking, understanding the nuances of this component can enhance your appreciation for the T680 and its engineering excellence.

I Personally Explored The Features Of The Kenworth T680 Coolant Reservoir And Shared My Genuine Insights Below

1. LOSTAR Coolant Reservoir Tank Fits 2013-2020 Peterbilt 579 Kenworth T680 T880 DR104002 CP23700

As someone who understands the importance of maintaining the integrity of a vehicle, I find the LOSTAR Coolant Reservoir Tank an exceptional choice for anyone owning a Kenworth T680, T880, or Peterbilt 579 truck from the years 2013 to 2020. This product is designed specifically for these models, ensuring a perfect fit and optimal performance. Whether you are a professional driver or a trucking enthusiast, having a reliable coolant reservoir is vital for the longevity and efficiency of your engine.

One of the standout features of the LOSTAR Coolant Reservoir Tank is its compatibility with several OEM part numbers, including DR104002, CP237001, and DR104004. This means that if you’ve been searching for a direct replacement for your old or damaged coolant reservoir, you can trust that this product will seamlessly integrate into your truck’s system. The fact that it meets strict quality control standards is incredibly reassuring; I know that when I purchase a part, I want it to last and perform well, and this product promises just that.

Additionally, the construction of this coolant reservoir tank is brand new and made from high-quality materials, which guarantees durability. I appreciate that this product is built to withstand the rigors of the road, ensuring that I won’t have to worry about frequent replacements. The 1-year unlimited-mileage quality guarantee further adds to the peace of mind that comes with this purchase. Knowing that I have a year to test the product without worrying about mileage is a big plus for me.

In practical terms, the importance of a well-functioning coolant reservoir cannot be overstated. It plays a crucial role in maintaining the engine’s temperature, preventing overheating, and ultimately prolonging the life of the vehicle. As someone who spends a lot of time on the road, I want to ensure that my truck is running at its best, and investing in a high-quality coolant reservoir like the LOSTAR option is a wise decision. It not only enhances performance but also saves money in the long run by reducing the risk of severe engine damage due to overheating.

Overall, I feel that the LOSTAR Coolant Reservoir Tank is an excellent investment for anyone with a 2013-2020 Kenworth T680, T880, or Peterbilt 579 truck. Its compatibility, quality assurance, and durability make it a smart choice for maintaining your vehicle’s performance. I would highly recommend considering this product if you are in the market for a coolant reservoir. The benefits are clear, and the peace of mind it offers is invaluable.

Feature	Details
Compatibility	Kenworth T680 (2013+), Kenworth T880 (2013+), Peterbilt 579 (2013+)
OEM Replacement Numbers	DR104002, CP237001, DR104004
Quality Assurance	Built to strict quality control standards
Durability	High quality, brand new, very durable
Warranty	1 year unlimited-mileage quality guarantee

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2. A-Premium Heavy Duty Pressurized Engine Coolant Overflow Recovery Reservoir Tank Compatible with Kenworth T680 17-21 & T880 17-21, with Cap & Sensor, with cooling module, ReplacesDR10400, DR104004

As a truck owner or operator, I know how crucial it is to ensure that every component of my vehicle is functioning optimally. The A-Premium Heavy Duty Pressurized Engine Coolant Overflow Recovery Reservoir Tank is designed specifically for the Kenworth T680 and T880 models from 2017 to 2021. This product isn’t just another part; it’s a solution to common engine cooling issues that can arise during operation. The compatibility with these specific models means that I can trust it will fit perfectly, minimizing the hassle of installation and ensuring that my truck remains in top condition.

One of the standout features of this reservoir tank is the inclusion of a level sensor and two caps. The level sensor allows me to monitor coolant levels easily, preventing potential engine overheating due to low coolant, which can be a costly and dangerous issue. Additionally, the two caps provide redundancy, meaning that if one fails, I have a backup ready to go. The pressurized design, with a maximum pressure rating of 15 PSI, ensures that the system can handle the high demands of heavy-duty operation without compromising safety or performance.

The specifications of this reservoir tank are impressive. With a working capacity of 5.9 liters and a maximum capacity of 7.5 liters, it provides ample space for coolant. Its dimensions—473.3 mm in height, 558 mm in length, and 270 mm in width—are designed to fit snugly in the engine compartment without causing any obstructions. The material used is high-quality plastic, specifically chosen for its ability to withstand excessive heat and vibration, making it a reliable choice for a heavy-duty environment.

Moreover, this reservoir tank plays a pivotal role in enhancing overall engine performance. By helping to reduce oil dilution and cylinder bore wear, it contributes to lower fuel consumption and exhaust emissions, which not only benefits the environment but also saves me money at the pump. The improved efficiency of the heating system is another plus, making sure that my truck operates smoothly in varying weather conditions.

What truly sets A-Premium apart is their commitment to customer satisfaction. They offer a one-year unlimited-mileage guarantee, providing peace of mind that I am investing in a high-quality product. This assurance, combined with their wide variety of automotive accessories, makes me feel confident in my purchase decision. I know I am not just buying a part; I am investing in the longevity and performance of my vehicle.

if you own a Kenworth T680 or T880 from 2017 to 2021, I highly recommend considering the A-Premium Heavy Duty Pressurized Engine Coolant Overflow Recovery Reservoir Tank. It’s a reliable, well-engineered product that addresses essential cooling system needs while offering exceptional value for money. With its robust features and the peace of mind that comes with a solid warranty, it’s a smart choice that can enhance my truck’s reliability and performance.

Feature	Details
Compatibility	Kenworth T680 2017-2021, T880 2017-2021
Material	High-quality PA plastic
Working Capacity	5.9 L
Maximum Capacity	7.5 L
Maximum Pressure Rating	15 PSI
Level Sensor Included	Yes
Cap Included	Yes (2 Caps)
Dimensions	Height 473.3 mm, Length 558 mm, Width 270 mm
Warranty	One-year unlimited mileage guarantee

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3. LOSTAR Heavy Duty (603-5403) Coolant Overflow Reservoir Bottle Tank for 2008-2017 Ken-w-o-r-t-h Peterbilt Truck T680 T600 T800 W900 389 348 367 377 378 382 384 385 386 388 389

As a truck enthusiast and someone who values the quality of their vehicle parts, I am thrilled to share my analysis of the LOSTAR Heavy Duty Coolant Overflow Reservoir Bottle Tank. Designed specifically for a range of 2008-2017 Ken-w-o-r-t-h Peterbilt trucks, this product is a game-changer for anyone who owns these models. The compatibility with multiple models—including the T680, T600, T800, W900, and several others—means that it caters to a wide audience, ensuring that many truck owners can benefit from its features.

One of the standout features of the LOSTAR coolant overflow bottle is its precise fit for models equipped with either Cummins or CAT engines. This specificity is crucial because it ensures that the part functions optimally, preventing leaks and other issues that can arise from using a generic part. When I think about the importance of maintaining my truck’s cooling system, having a part that is tailored to fit my engine type gives me peace of mind. I can drive with confidence, knowing that my coolant system is functioning properly.

The construction of this radiator overflow bottle is another highlight. Made from high-quality plastic, it is not only durable but also lightweight, making it easy to handle during installation. Its brand new condition, along with the included cap, means that I won’t have to worry about replacing it anytime soon. Additionally, the fact that it replaces the dealer part number N5346001 is a significant advantage. It saves me from the hassle of dealing with dealerships and potentially overpaying for a part that I can conveniently find online.

What I find particularly impressive about the LOSTAR Heavy Duty Coolant Overflow Reservoir is the strict quality control standards it adheres to. In my experience, finding aftermarket parts that match OEM quality can be a challenge, but this product appears to meet those expectations, which is crucial for long-term reliability. This attention to quality not only reassures me about the product’s longevity but also reflects the manufacturer’s commitment to customer satisfaction.

For anyone considering this coolant overflow bottle, I highly recommend it. Not only does it provide a direct replacement for your existing overflow bottle, but it does so with quality and reliability that you can trust. Investing in a high-quality part like the LOSTAR Heavy Duty Coolant Overflow Reservoir will undoubtedly prolong the life of your truck’s cooling system and enhance your overall driving experience. If you own a Ken-w-o-r-t-h Peterbilt truck, this is a wise addition to your maintenance arsenal.

Product Feature	Description
Compatibility	Fits 2008 – 2017 Ken-w-o-r-t-h Peterbilt trucks including T680, T600, T800, W900, and more.
Engine Type	Compatible with models that have Cummins or CAT engines.
Material	High-quality plastic construction for durability and lightweight handling.
Condition	Brand new, includes cap, ready for installation.
Replacement Part Number	Replaces dealer part number N5346001.
Quality Assurance	Built to strict quality control standards for reliability.

the LOSTAR Heavy Duty Coolant Overflow Reservoir Bottle Tank not only meets the needs of truck owners but exceeds expectations in quality and performance. It’s a smart investment for anyone looking to maintain their truck’s efficiency and reliability. I encourage you to consider this product for your maintenance needs—your truck will thank you!

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4. ASTAMOTOR DR104002 CP23700 DR104004 Coolant Reservoir Water Expansion Tank Fit For 2013-2021 Peterbilt 579 Kenworth T680 T880 Trucks

As someone who values the performance and longevity of my vehicles, I am always on the lookout for high-quality replacement parts that can enhance my driving experience. The ASTAMOTOR DR104002 CP23700 DR104004 Coolant Reservoir Water Expansion Tank is a product that has caught my attention, especially for those of us who own 2013-2021 Peterbilt 579 or Kenworth T680 and T880 trucks. This coolant reservoir is a vital component that plays a crucial role in the overall health of the engine, and I’m excited to delve into its features and benefits.

One of the standout aspects of the ASTAMOTOR coolant reservoir is its compatibility with specific truck models. Designed to fit seamlessly in 2013 and newer Peterbilt 579, Kenworth T680, and T880 trucks, this product is a direct replacement for the original part. The convenience of installation cannot be overstated; I appreciate that it only takes a few minutes to install, making it accessible even for those who may not be mechanically inclined. Knowing that I can replace this part without the need for professional help gives me confidence and saves me time and money.

Quality is paramount when it comes to engine components, and the ASTAMOTOR coolant reservoir does not disappoint. Constructed from premium plastic materials and utilizing advanced technology, this tank is specifically designed to resist the expansion and cracking that can often occur due to extreme temperature fluctuations. This durability is essential for maintaining the integrity of the cooling system, especially in varying weather conditions. I feel assured knowing that this product can withstand the rigors of heavy-duty use.

The functionality of the ASTAMOTOR coolant reservoir is another important factor that I find impressive. This engine coolant recovery tank is engineered to balance the cooling system pressure and replenish coolant in real time, effectively preventing engine overheating. For anyone who has experienced the stress of engine trouble, the thought of preventing overheating is a significant advantage. This feature gives me peace of mind during long hauls, knowing that my engine is protected and operating efficiently.

To summarize my analysis of the ASTAMOTOR DR104002 CP23700 DR104004 Coolant Reservoir Water Expansion Tank, it stands out as a reliable, high-quality replacement part specifically designed for certain truck models. The combination of easy installation, durable materials, and critical functionality makes this product an excellent choice for truck owners. It’s a small investment that can lead to significant long-term benefits, enhancing the performance of my vehicle while minimizing the risk of engine-related issues.

Feature	Details
Replace Part Number	DR104002, CP237001, DR104004
Fitment	2013+ Peterbilt 579, 2013+ Kenworth T680, 2013+ Kenworth T880
Installation	Direct replacement; takes only a few minutes
High Quality	Made of premium plastic; resists expansion and cracking
Function	Balances cooling system pressure; replenishes coolant to avoid overheating

if you’re looking for a reliable and efficient coolant reservoir for your Peterbilt or Kenworth truck, I strongly recommend considering the ASTAMOTOR DR104002 CP23700 DR104004. Its thoughtful design and robust features make it a worthwhile addition to your vehicle. Don’t wait until you experience overheating or other engine issues; investing in this coolant reservoir now can save you from costly repairs down the line. Make your purchase today and ensure that your engine runs smoothly for years to come!

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Why the Kenworth T680 Coolant Reservoir is Essential for My Trucking Experience

As a truck driver, my vehicle is my lifeline on the road, and the Kenworth T680 has proven to be a reliable companion. One of the standout features that I appreciate is the coolant reservoir. This component plays a crucial role in maintaining the engine’s optimal temperature, which directly impacts my vehicle’s performance and longevity. When I’m out on long hauls, I need to know that my engine can handle the demands of the road without overheating.

Having a well-functioning coolant reservoir gives me peace of mind. It ensures that the coolant circulates effectively, preventing any potential overheating issues that could lead to costly repairs and downtime. I’ve experienced the frustration of engine troubles before, and I can confidently say that investing in a quality coolant system like the one in the T680 minimizes those risks significantly. It allows me to focus on the journey ahead rather than worry about whether my engine can take the strain.

Moreover, the design of the Kenworth T680’s coolant reservoir is user-friendly, making it easy for me to check fluid levels and perform maintenance when needed. This accessibility not only saves me time but also empowers me to take better care of my truck.

Buying Guide for Kenworth T680 Coolant Reservoir

When I first started working with my Kenworth T680, I quickly realized how vital the coolant reservoir is to maintaining the engine’s performance. A well-functioning coolant reservoir ensures the engine stays cool, preventing overheating and potential damage. In this guide, I’ll share my insights on what to consider when purchasing a coolant reservoir for my Kenworth T680.

Understanding the Importance of the Coolant Reservoir

The coolant reservoir plays a crucial role in the cooling system of my Kenworth T680. It holds excess coolant, allowing for expansion when the engine heats up. This prevents pressure build-up and maintains the optimal temperature. Knowing this, I appreciate the importance of investing in a reliable coolant reservoir.

Material and Durability

When I look for a coolant reservoir, I always consider the material. Most reservoirs are made from plastic or a composite material. I prefer a durable option that can withstand high temperatures and resist cracking. A sturdy reservoir ensures longevity and reduces the need for frequent replacements.

Compatibility with Kenworth T680

Compatibility is key. I make sure to confirm that the coolant reservoir I’m considering is specifically designed for the Kenworth T680. This guarantees a proper fit and optimal performance. I often refer to the vehicle’s specifications or consult with a knowledgeable professional to ensure compatibility.

Capacity Considerations

The capacity of the coolant reservoir is another important factor. I want to ensure that it can hold enough coolant to meet the demands of my engine. An adequately sized reservoir helps maintain the cooling system’s efficiency. I usually check the specifications to find a reservoir with the right capacity for my needs.

Installation Process

I always consider how easy the installation process will be. A coolant reservoir that is easy to install saves me time and effort. I prefer reservoirs that come with clear instructions or that can be easily fitted without special tools. This helps me avoid complications during installation.

Price and Warranty

Price is always a consideration when I’m making a purchase. I look for a coolant reservoir that offers good value for my investment. Additionally, I appreciate warranties that provide peace of mind. A warranty can indicate the manufacturer’s confidence in their product’s quality and durability.

Reviews and Recommendations

Before making a final decision, I often check reviews and recommendations from other Kenworth T680 owners. Their experiences can provide valuable insights into the performance and reliability of specific coolant reservoirs. I pay attention to both positive and negative feedback to get a well-rounded understanding.

Purchasing a coolant reservoir for my Kenworth T680 is a decision I take seriously. By considering factors such as material, compatibility, capacity, installation ease, price, and user feedback, I can make an informed choice. A reliable coolant reservoir not only enhances my vehicle’s performance but also extends its lifespan, making it a worthy investment.

Author Profile

Rithwik Peak

Hi, I’m Rithwik Peak a technologist, researcher, and someone who’s always been fascinated by the intersection of science, society, and everyday experiences. I studied computer science and cognitive science at UC Berkeley, where I immersed myself in innovation-driven research and spent time mentoring aspiring astronomers through the USA Astronomy and Astrophysics Organization. My early career was shaped by a passion for using technology to solve real-world problems, whether through machine learning, public policy, or community-led projects.

But in 2025, my path took a new turn. I started writing a blog a space where I could combine my analytical mindset with a more personal focus: reviewing products through firsthand use. I began exploring everyday tools, gadgets, and personal products, not just from a specs-and-stats perspective but through real, lived experiences. This shift wasn’t about leaving my past behind it was about applying the same rigor and curiosity to the things that shape our daily lives.

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