SKU: 21944039356

Dieselsite Coolermax Transmission Cooler

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Description

Dieselsite Coolermax Transmission CoolerDieselSite COOLERMAX Transmission Cooler High Efficiency Universal Upgrade Extend the life of your transmission efficiently and economically with the DieselSite COOLERMAX Transmission Cooler. Designed to dramatically reduce transmission fluid temperatures, this cooler is an ideal upgrade for towing, stop and go driving, and high load applications where heat is the #1 transmission killer. Why Transmission Cooling Matters Automatic transmissions fail by

DieselSite COOLERMAX Transmission Cooler – High Efficiency Universal Upgrade

Extend the life of your transmission efficiently and economically with the DieselSite COOLERMAX Transmission Cooler. Designed to dramatically reduce transmission fluid temperatures, this cooler is an ideal upgrade for towing, stop-and-go driving, and high-load applications where heat is the #1 transmission killer.

🔥 Why Transmission Cooling Matters

Automatic transmissions fail by the thousands every year due to overheating. Once fluid temperatures climb, damage accelerates rapidly:

  • 200°F – Fluid begins to break down

  • 240°F – Varnish forms; transmission life is cut in half

  • 260°F – Seals and rubber components harden; major damage begins

  • 295°F+ – Slipping, burned clutches, and carbon buildup

💡 Every 20°F drop in operating temperature can double transmission and fluid life.
Reducing temps by up to 60°F can mean the difference between years of service and an early rebuild.

🛠️ The DieselSite COOLERMAX Solution

The COOLERMAX Transmission Cooler is engineered to outperform factory coolers and many aftermarket options. It can be used as a direct replacement or as an auxiliary cooler in addition to your OEM unit.

🔥 Key Features & Specs:

  • -8AN inlet size

  • 59,000 BTU cooling capacity

  • 17-row stacked plate core for maximum heat transfer

  • Core size: 22.85" x 7.25" x 1.25"

  • 150 PSI working pressure / 750 PSI burst pressure

  • Fin-and-plate design – combines stacked-plate efficiency with fin cooling

  • JIC fittings with 316 stainless hose barb adapters for corrosion resistance

  • Universal mounting brackets – mount anywhere space allows

  • Same bracket footprint as Tru-Cool® 4739, with 10,000+ additional BTUs

⚙️ Installation Flexibility

  • Cooler can be mounted up, down, or sideways

  • Optimal orientation: fittings facing up

    • Ensures all air is purged

    • Allows 100% of the cooler to be used for heat exchange

📦 Hardware Options

Choose the setup that fits your needs:

  • Cooler Only – fittings included

  • Installation Kit (Optional) includes:

    • 6 ft transmission hose

    • Menders & clamps

    • Zip-tie mounting kit

    • Mounting hardware

👉 Select fitting size based on your truck’s transmission line size.

🔍 Why COOLERMAX Outperforms Other Coolers

Most coolers fall into one of three designs:

  • Tube & Fin – least efficient

  • Stacked Plate – better heat transfer

  • Fin & Plate (COOLERMAX) – combines both designs for maximum efficiency with minimal pressure loss

This design allows COOLERMAX to keep temperatures low even in heavy towing and stop-and-go traffic, without the need for electric fans.

✅ Bottom Line

If you tow, daily drive in traffic, or run added power, the DieselSite COOLERMAX Transmission Cooler is one of the smartest upgrades you can make. Lower temps mean longer transmission life, better performance, and peace of mind—all with a simple, proven solution.

Shipping Notes
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  • Delivery to the USA:
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 21944039356

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4.4 ★★★★★
Based on 7 reviews
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Verified Purchase
Evelyn Foran
Birmingham, US
★★★★★ 5
A revelatory book with the fingerprint of The Holy Spirit!
Format: Paperback
I have other books by Dr. Mark Chironna and as usual this book did not disappoint. The wealth of insight Dr Chironna has will cause you to get revelation! Outside of the Bible I can not say this about any other authors except for the books I have by Dr Chironna. I get so much revelation that I have to stop reading it to write it down. The Prophetic Integrity is a must read. I believe all Spirit led pastors and leaders in the body of Christ need to read and teach out of this book.
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Reviewed in the United States on June 5, 2026
M
Verified Purchase
MB
Massapequa, US
★★★★★ 5
A pastoral and prophetic epistle to the Western Church
Format: Paperback, Format: Paperback
I was so glad to read this book! Joash Thomas writes with an accessible blend of humor, vulnerability, and incisive observation as he reminds the Western Church of the inheritance of the saints across time and around the world. With pastoral sensitivity and prophetic courage, Joash brings the global heritage of the Church into the spotlight in a kind, clarifying, and convicting way. The book is structured in three parts: the first clears away some of the roadblocks to considering a justice-oriented lens, the second explores and illuminates the necessary work of decolonizing our doctrine and praxis, and the third invites readers to imagine an alternate path forward. I liked how the book is sprinkled with story-telling—both examples from global church history and story-telling ways churches today are prioritizing justice. I also found his idea for shifting "mission trips" to "vision trips" that see what God is already doing to be very provocative and hopeful. My favorite part of the book was the exposition on the Lord's Prayer. Each chapter ends with reflection questions, making this a great resource for a church small group or book study. *** A few of my favorite quotes: "One of the most beautiful, anti-colonial things about the Table is the way it visibly unifies all of us in Christ, regardless of socioeconomic status, race, gender, or politics. The Table is a rare place on earth where people who have nothing else in common suddenly find themselves reminded of how they hold the most important thing in common with each other, which is being united by the body and blood of Christ. The colonizer's gospel divides to conquer, but the gospel of Christ unites to heal. In a Western church that is highly divided on issues of theology, race, politics, and socioeconomics, the Table can be a physical place of healing and unification. Unless we learn to receive the body of Christ with our enemies at the Table (which requires allowing our theological and political enemies to participate at the Table with us), we will never know what it looks like to become the body of Christ for this broke world in need of healing." pg. 89 "Many Western Christians today are uncomfortable (and in many cases, even made fearful) by the idea of Christians living at peace and in the minority in a highly pluralistic society, even though this has been the reality for the vast majority of non-Western Christians around the world." pg. 109 "When we start prayer acknowledging that we're children of this heavenly Father, we are reminded that we are a part of a cosmic order much bigger than ourselves...When we ask God to give us our daily bread, we are asking God to give ALL his children their daily bread...God still takes the side of people in poverty and oppression because they have no one else who can advocate on their behalf. God's preferential option for the poor is not because of the goodness of people in poverty; it is because of the goodness of God." pg. 137-139 "In situations like this, we must set aside our desire for success (in this case, transforming the entire political climate of a nation) and prioritize faithfulness (doing what we can with what we have), even if this means we have to operate from the margins." pg. 158
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Reviewed in the United States on November 19, 2025
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Verified Purchase
Tyler
Carnegie, US
★★★★★ 5
Thoughtful, Challenging, Research-Based, and Compelling: Joash P. Thomas' "The Justice of Jesus"
Format: Paperback
I cannot recommend this book enough! Especially for Christian's actively involved in a church community. In The Justice of Jesus, Joash offers a compelling and challenging vision of what authentic, Christ-centered justice truly looks like. What I loved most about this book is how directly Joash engages with the reader to reflect on what justice means, what it looks like, and why that can sometimes be an uncomfortable topic, especially for White, Western Christians like myself; and Joash masterfully addresses the topic in a way that's sensitive yet direct and firm, allowing readers from all backgrounds to thoughtfully consider his argument without feeling targeted or turned off. I also really appreciate the quality of his evidence and argument, especially as it relates to anecdotal experience. He provides countless examples of Church communities engaged in the work of justice Jesus' way. There is so much I wish I could dive deeper into, but one of the key takeaways from this book that I appreciate is that, as hard and uncomfortable it can be to acknowledge, Christian's in the West (especially white) are deeply privileged and carry with them a colonized theology that's more often led to harm, oppression, and violence than it has to love, peace, and brotherhood. We've over emphasized the salvation of souls to the detriment of care for physical bodies, perfectly content to keep people in bondage so long as they say some magic words or profess belief. Joash rightly challenges this, calling on Western Christian's to 1) acknowledge their privilege and history of colonial conquest, 2) hold freedom of the body just as highly as salvation of the soul, 3) prioritize unity as beloved children of God over theological/liturgical differences, and 4) do the hard work necessary to address the harm our past has done (a task for which Joash provides many examples/suggestions) as we move forward as the Body of our Lord. Joash includes thoughtful reflection questions at the end of each chapter, making this the perfect book for a book group or study. I recommended it to the pastor of my church and look forward to engaging with it even more!
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Reviewed in the United States on February 2, 2026
M
Verified Purchase
M Summers
Dallas, US
★★★★★ 5
Profoundly helpful!
Format: Paperback
I lead book studies centered on social justice and Joash’s work is powerful and refreshing! Fresh perspectives, practical tips, & convicting truths rooted in the Good News of Jesus. Each member of the study has said again and again how good this book has been! Thank you Joash!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
D
Verified Purchase
D. Griffin
San Leandro, US
★★★★★ 5
Worthwhile read.
Format: Kindle
The first few chapters would perhaps been worth 10 stars the remaining chapters not so much although it was good information. It became a bit monotonous but all in all it’s still a five star book.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026

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