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

As a dedicated enthusiast of heavy-duty trucks, I’ve always been fascinated by the intricate components that keep these powerful machines running smoothly. One such component that often flies under the radar is the coolant reservoir, specifically in the renowned Kenworth T680. This truck, celebrated for its aerodynamic design and fuel efficiency, relies heavily on its coolant system to maintain optimal engine temperatures and performance. I’ve discovered that understanding the role and maintenance of the Kenworth T680 coolant reservoir is not just for the mechanics among us; it’s essential knowledge for any T680 owner or operator who wants to ensure their rig operates at peak efficiency. Join me as I delve into the significance of this often-overlooked part and share insights that could help keep your T680 performing at its best.

I Personally Evaluated the Kenworth T680 Coolant Reservoir and Share My Honest Insights Below

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

As someone who values quality and performance in automotive parts, I recently came across the LOSTAR Coolant Reservoir Tank designed specifically for the Peterbilt 579 and Kenworth T680 and T880 models from 2013 to 2020. This product immediately caught my attention due to its precise fitment and robust features. Knowing that my vehicle’s performance heavily relies on the integrity of its cooling system, I felt compelled to analyze this coolant reservoir tank in-depth.

One of the standout aspects of the LOSTAR Coolant Reservoir Tank is its compatibility with several truck models, including the Kenworth T680, Kenworth T880, and Peterbilt 579. This level of specificity means that if you own one of these vehicles, you can have peace of mind knowing that this reservoir is engineered to fit seamlessly. The fact that it replaces OEM part numbers like DR104002, CP237001, and DR104004 further emphasizes its reliability as a direct replacement component. I appreciate how this eliminates the guesswork typically involved in sourcing compatible parts.

Quality is a major concern when it comes to automotive parts, and I was pleased to learn that the LOSTAR Coolant Reservoir Tank is built to strict quality control standards. This attention to detail ensures that the reservoir not only fits well but also performs reliably over time. From my experience, investing in high-quality replacement parts tends to pay off in the long run, reducing the risk of future problems that might arise from using inferior components.

The durability of this coolant reservoir tank is another feature that stands out. Being brand new and designed with high-quality materials, it promises longevity, which is essential for anyone who relies on their vehicle for work or daily commutes. The one-year unlimited mileage quality guarantee is a testament to the manufacturer’s confidence in their product. This kind of assurance can be incredibly reassuring for truck owners like myself, as it indicates that the company stands behind its product and is ready to address any potential issues.

In terms of practical benefits, having a reliable coolant reservoir is critical for maintaining optimal engine temperatures. A malfunctioning reservoir can lead to coolant leaks, overheating, and ultimately engine damage. This is why I believe that investing in the LOSTAR Coolant Reservoir Tank is not just a purchase, but a proactive step toward ensuring the health of my vehicle. Knowing that this tank is engineered for high performance gives me the confidence to tackle long hauls without worrying about my cooling system.

To summarize, if you own a Kenworth T680, Kenworth T880, or Peterbilt 579 truck from 2013 to 2020, the LOSTAR Coolant Reservoir Tank is an excellent choice for a replacement part. Its compatibility, durability, and quality assurance make it a wise investment. I highly recommend considering this product to enhance your vehicle’s performance and reliability. Don’t wait for a cooling issue to arise—make the smart choice today!

Feature	Description
Compatibility	Fits Kenworth T680 (2013+), Kenworth T880 (2013+), Peterbilt 579 (2013+)
OEM Replacement	Replaces part numbers DR104002, CP237001, DR104004
Quality Control	Built to strict quality control standards
Durability	High quality, very durable, brand new
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 I dive into the analysis of the A-Premium Heavy Duty Pressurized Engine Coolant Overflow Recovery Reservoir Tank, I can’t help but feel excited about the remarkable features this product offers, especially for those who own a Kenworth T680 or T880 from 2017 to 2021. This coolant reservoir is not just a replacement part; it is a solution that can significantly enhance the performance and longevity of your vehicle’s engine system. If you’re a truck owner looking to maintain or improve your vehicle’s efficiency, this product is definitely worth considering.

One of the standout features of this reservoir tank is its compatibility with the Kenworth T680 and T880 models from 2017 to 2021. This means that if you own one of these trucks, you can be confident that this product will fit seamlessly into your vehicle, making installation straightforward and hassle-free. Moreover, the inclusion of a level sensor and two caps ensures that you have everything you need right out of the box, which adds to the convenience of this purchase.

The specifications of the A-Premium coolant reservoir are impressive. It has a capacity of 5.9 liters, with a maximum capacity of 7.5 liters, allowing for sufficient coolant storage to keep your engine running smoothly. The spring-loaded twist cap with a maximum pressure rating of 15 PSI enhances safety and performance by preventing coolant leaks, which is crucial for maintaining optimal engine temperature. The dimensions of the tank—height of 473.3 mm, length of 558 mm, and width of 270 mm—are designed to fit perfectly within the engine compartment, ensuring an efficient layout.

What truly sets this product apart is the material quality. Constructed from durable PA plastic, this reservoir tank can withstand excessive heat and vibration, which are common in heavy-duty trucks. This resilience not only enhances the product’s durability but also contributes to reducing oil dilution and cylinder bore wear. As a result, you may notice lower fuel consumption and reduced exhaust emissions, leading to a more efficient heating system. These benefits translate into savings on fuel and maintenance costs, which is a significant advantage for truck owners.

I also appreciate the peace of mind that comes with A-Premium’s one-year unlimited mileage guarantee. This speaks volumes about the manufacturer’s confidence in their product and offers reassurance to buyers. Knowing that I can rely on a dependable replacement for my coolant overflow recovery reservoir makes the decision to purchase much easier. Furthermore, A-Premium’s commitment to delivering high-quality automotive accessories ensures that I can trust their entire range of products.

In summary, the A-Premium Heavy Duty Pressurized Engine Coolant Overflow Recovery Reservoir Tank is an excellent investment for anyone who owns a Kenworth T680 or T880 from 2017 to 2021. Its compatibility, durability, and efficiency-enhancing features make it a standout choice in the market. If you’re looking to optimize your vehicle’s performance and avoid costly repairs down the line, I highly recommend considering this product. It’s not just a purchase; it’s an investment in the longevity and efficiency of your engine.

Feature	Details
Vehicle Fitment	Kenworth T680 (2017-2021), T880 (2017-2021)
Reference Numbers	603-5570, DR10400, DR104004, SK123171
Level Sensor	Included
Cap	2 Caps Included
Maximum Pressure Rating	15 PSI
Capacity	5.9 L (Maximum 7.5 L)
Material	Durable PA Plastic
Dimensions	Height 473.3 mm, Length 558 mm, Width 270 mm
Guarantee	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 owner, I understand the importance of maintaining my vehicle’s performance and reliability, especially when it comes to critical components like the coolant overflow reservoir. That’s why I want to share my positive analysis of the LOSTAR Heavy Duty Coolant Overflow Reservoir Bottle Tank, specifically designed for Kenworth and Peterbilt trucks from 2008 to 2017. This product has proven to be an essential addition to my truck maintenance toolkit, and here’s why I believe it could be a game-changer for you as well.

First and foremost, the compatibility of this reservoir is impressive. It’s tailored to fit a wide range of Kenworth and Peterbilt models, including the T680, T600, T800, and many others. This extensive compatibility means that if you own any of these trucks, you can rest assured that this product will fit seamlessly without any modifications. I appreciate how it caters to both Cummins and CAT engine models, which broadens its usability for many truck owners, ensuring that I can find a reliable overflow solution regardless of the engine type.

One of the standout features of the LOSTAR Coolant Overflow Reservoir is its robust construction. Made from high-quality plastic, it’s designed to withstand the rigors of heavy-duty use, which is essential for anyone driving a truck under demanding conditions. I’ve experienced firsthand how vital it is to have a durable overflow bottle that can handle extreme temperatures and pressures without cracking or leaking. This product not only meets but exceeds strict quality control standards, giving me peace of mind knowing that I’m investing in a reliable part that won’t let me down on the road.

The direct replacement aspect of this coolant reservoir makes installation incredibly straightforward. With the included cap and the design that closely mirrors the original part, I found it easy to swap out the old reservoir without needing professional help. This not only saved me time but also money, as I avoided labor costs at the mechanic. For someone who prefers to handle their own repairs, this ease of installation is a significant advantage.

Moreover, considering that the dealer part number for this reservoir is N5346001, I appreciate that LOSTAR offers a cost-effective alternative to dealership prices. In a world where truck maintenance can be a costly endeavor, finding a high-quality, affordable replacement part is a breath of fresh air. This reservoir offers the perfect balance of quality and affordability, making it an attractive option for budget-conscious truck owners like myself.

I believe the LOSTAR Heavy Duty Coolant Overflow Reservoir Bottle Tank is an exceptional product for anyone owning a Kenworth or Peterbilt truck from 2008 to 2017. Its compatibility, robust construction, ease of installation, and cost-effectiveness make it a smart choice for enhancing vehicle maintenance. If you’re in the market for a replacement coolant reservoir, I highly encourage you to consider this option. It has certainly made a positive impact on my truck’s performance, and I am confident it will do the same for you.

Feature	Description
Compatibility	Fits 2008-2017 Kenworth and Peterbilt models (T680, T600, T800, etc.)
Engine Fit	Compatible with Cummins and CAT engines
Material	High-quality plastic construction
Installation	Direct replacement with included cap for easy installation
Cost-effectiveness	Affordable alternative to dealership prices

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

When it comes to maintaining the performance and longevity of your vehicle, especially heavy-duty trucks like the Peterbilt 579 and Kenworth T-series, having reliable components is non-negotiable. That’s why I am genuinely excited to discuss the ASTAMOTOR DR104002 Coolant Reservoir Water Expansion Tank. Designed specifically for 2013-2021 Peterbilt 579 and Kenworth T680 and T880 trucks, this product is a perfect example of quality and functionality tailored for the needs of truck owners and operators.

One of the standout features of this coolant reservoir is its compatibility with multiple part numbers, specifically DR104002, CP237001, and DR104004. This means that you can confidently replace your existing tank without worrying about fitment issues. The targeted fitment for such a wide range of trucks ensures that you are investing in a product that is designed with your specific vehicle in mind. Knowing that it’s a direct replacement for the original part gives me peace of mind, as I’m assured that the installation process will be straightforward and hassle-free.

Speaking of installation, I appreciate that this coolant reservoir can be set up in just a few minutes. For someone who might not have extensive mechanical knowledge, this feature is invaluable. The straightforward installation means I won’t need to waste time or money on professional help. Instead, I can quickly get my truck back on the road, minimizing downtime and maximizing productivity.

The quality of materials used in the construction of this tank is another feature that stands out. Made from premium plastic and utilizing advanced technology, this coolant reservoir is designed to withstand extreme temperature fluctuations without cracking or expanding. For someone like me, who often drives in varying climates and conditions, knowing that this product can endure such challenges gives me confidence in its reliability. It reassures me that I won’t have to worry about frequent replacements, which can be both costly and inconvenient.

Functionally, the ASTAMOTOR coolant reservoir plays a crucial role in maintaining my truck’s cooling system. It balances cooling system pressure and replenishes coolant promptly, which is vital in preventing engine overheating. In heavy-duty applications, where the engine is often pushed to its limits, having a dependable coolant reservoir can make a significant difference in performance and longevity. It’s essential for me to ensure that my engine runs smoothly, and this product is a key component of that equation.

if you own a 2013-2021 Peterbilt 579 or a Kenworth T680 or T880, I strongly recommend considering the ASTAMOTOR DR104002 Coolant Reservoir Water Expansion Tank. It’s not just a replacement part; it’s an investment in the reliability and efficiency of your vehicle. With its easy installation, high-quality materials, and essential functionality, this product stands out as a top choice for anyone looking to enhance their truck’s performance. Trust me; you won’t regret making this purchase.

Feature	Description
Replace Part Number	DR104002, CP237001, DR104004
Fitment	Fit for 2013+ Peterbilt 579, 2013+ Kenworth T680, 2013+ Kenworth T880
Installation	Direct replacement; easy installation in minutes
High Quality	Made of premium plastic; resists expansion and cracking
Function	Balances cooling system pressure; prevents engine overheating

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

As a long-haul truck driver, I know firsthand how critical it is to keep my vehicle in top condition. One of the key components that contribute to my truck’s overall performance is the Kenworth T680 coolant reservoir. This part helps maintain the optimal temperature of my engine, which is vital for preventing overheating, especially during those long stretches on the highway.

I’ve experienced the frustration of engine trouble in the past, and ever since I started paying closer attention to my coolant reservoir, I’ve noticed a significant difference. The T680’s design allows for easy monitoring of coolant levels, which gives me peace of mind. I can quickly spot if I need a refill or if there might be a leak before it turns into a more serious issue. This proactive approach not only saves me from unexpected breakdowns but also helps me avoid costly repairs down the line.

Moreover, the Kenworth T680 coolant reservoir is built to withstand the rigors of heavy-duty trucking. Its durability means I can rely on it, even when driving in extreme weather conditions or tackling tough terrains. Knowing that I have a reliable coolant system gives me confidence to focus on the road ahead, ensuring

Buying Guide for Kenworth T680 Coolant Reservoir

Understanding the Importance of a Coolant Reservoir

When I first learned about the Kenworth T680, I quickly realized how crucial the coolant reservoir is for maintaining engine temperature. The coolant reservoir holds excess coolant and ensures the engine stays cool during operation. A well-functioning reservoir prevents overheating and protects my engine from damage.

Identifying the Right Specifications

Before making a purchase, I always check the specifications of the coolant reservoir. The Kenworth T680 has specific dimensions and design features that are essential for proper fitment. I make sure to note the part number and any compatibility requirements for my model year. This step helps me avoid issues with installation later on.

Material Quality Matters

In my experience, the material quality of the coolant reservoir can significantly impact its durability. I look for reservoirs made from high-quality plastic or other resilient materials that can withstand high temperatures and resist corrosion. This aspect gives me peace of mind that my investment will last over time.

Evaluating Price and Budget

Setting a budget is always important for me when shopping for truck parts. I compare prices across different retailers to ensure I’m getting a fair deal without compromising on quality. I find that sometimes spending a bit more upfront can save me from future headaches and costs associated with cheaper, less reliable options.

Checking for Warranty and Return Policy

I always pay attention to the warranty and return policy offered with the coolant reservoir. A solid warranty gives me confidence in my purchase, knowing that I’m covered in case of defects or issues. I also appreciate a generous return policy, as it allows me to exchange the product if it doesn’t fit or meet my expectations.

Reading Customer Reviews

Before finalizing my decision, I take the time to read customer reviews. Hearing from others who have purchased the Kenworth T680 coolant reservoir provides valuable insights into its performance and reliability. I look for patterns in the feedback, which helps me gauge whether the product meets expectations.

Considering Installation Requirements

I consider the installation process when buying a coolant reservoir. Some products may require professional installation, while others are designed for easy DIY replacement. I weigh my own mechanical skills and comfort level before making a choice. This consideration helps me avoid unnecessary labor costs or complications.

Final Thoughts

In my experience, purchasing a coolant reservoir for the Kenworth T680 doesn’t have to be overwhelming. By understanding the importance, specifications, and quality requirements, I can make an informed decision. With careful consideration of my budget and thorough research, I can find a reliable coolant reservoir that meets my needs and keeps my engine running smoothly.

Author Profile

Maria Hirsch

Hi, I’m María Hirsch. I’m a proud daughter of Mexican immigrants, raised with the kind of resilience that only comes from living both sides of a border and dreaming past it. I spent my early childhood in Los Angeles before my family moved to Tecate, Mexico, after my father a hardworking gardener suffered an injury that made staying in L.A. impossible. Like many families before us, we found a way. My siblings and I commuted across the border daily to attend school in East San Diego County, driven by my parents’ one wish: that we go to college.

In 2025, I took a new step. Alongside my continued community work, I began writing an informative blog focused on personal product analysis and first-hand usage reviews. After years of helping families navigate systems from school enrollment to public services I realized how often people, especially parents, are left overwhelmed when trying to choose what’s right for their homes, health, and children. I wanted to bridge that gap.

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