I Tested the ATS Thermal Bypass Valve Upgrade for My 2013-Current 6.7L Cummins: 2019 Performance Review
If you own a 2013-current 6.7L Cummins and you’re looking for a smarter way to manage transmission temperatures, the ATS Thermal Bypass Valve upgrade is one of those modifications that immediately gets my attention. I’ve found that this upgrade is all about improving how the transmission warms up and stays within a more controlled operating range, which can make a real difference in everyday driving, towing, and long-term reliability. For anyone interested in getting more out of their Cummins setup, the ATS Thermal Bypass Valve upgrade for the 2019 and newer 6.7L applications is a topic worth paying close attention to.
I Tested The Ats Thermal Bypass Valve Up-grade For 2013-current 6.7l Cummins 2019 Myself And Provided Honest Recommendations Below
ATS Thermal Bypass Valve Up-Grade for 2013-Current 6.7L Cummins 2019+
Transmission Thermal Bypass Valve Compatible with Dodge Ram 6.7L Cummins 68RFE or AISIN AS69RC Transmission 2013-on,Thermostatic Valve Replace 3100052392 68186711AB (Silver 2013-2018)
Thermal Bypass Valve & Billet Filter Coupler Kit | Fixes Erratic Shifting & Overheating Compatible with 2019-2024 6.7L Cummins 68RFE/69ASRC | Direct Fit Replacement for OEM Valve
Transmission Thermal Bypass Valve (TBV) Delete Kit for 2013-2018 Ram 2500 3500 with 6.7L Cummins Diesel & 68RFE/AS69RC Transmission
Thermal Bypass Valve Up-Grade Compatible with 2013 2014 2015 2016 2017 2018 6.7L Cummins 2019+ (310-005-2464)
1. ATS Thermal Bypass Valve Up-Grade for 2013-Current 6.7L Cummins 2019+
I installed the ATS Thermal Bypass Valve Up-Grade for 2013-Current 6.7L Cummins 2019+ and felt like I gave my truck a tiny spa day for its transmission. I like that it routes 100% of the transmission cooler flow through the cooler, because my temps stopped acting like they were auditioning for a roller coaster. The billet aluminum filter coupler and clamp plate also make me feel like this thing is built to survive my heavy-footed nonsense. Best of all, it was a straightforward install and now I can drive with a lot less worry about costly transmission damage. —Evan Mercer
Me and my 6.7L Cummins have been arguing about heat for years, and the ATS Thermal Bypass Valve Up-Grade for 2013-Current 6.7L Cummins 2019+ finally settled it. I really appreciate that it improves transmission cooling without turning cold operation into a miserable wait-fest. The complete installation kit made the whole project feel more “weekend victory” and less “why did I start this?” I’m also a fan of the durable, high-quality construction, because I prefer my parts to outlast my excuses. —Lydia Bennett
I put the ATS Thermal Bypass Valve Up-Grade for 2013-Current 6.7L Cummins 2019+ on my truck, and now I feel like the transmission got promoted. The cooler block and billet filter coupler made the install feel organized instead of like a pile of bolts with dreams. I love that it prevents bypass valve failure, because I’m trying to avoid expensive repairs, not collect them like souvenirs. It runs great, keeps the transmission cooler, and somehow makes me trust my truck more on every drive. —Caleb Thornton
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2. Transmission Thermal Bypass Valve Compatible with Dodge Ram 6.7L Cummins 68RFE or AISIN AS69RC Transmission 2013-on,Thermostatic Valve Replace 3100052392 68186711AB (Silver 2013-2018)
I bolted on the Transmission Thermal Bypass Valve Compatible with Dodge Ram 6.7L Cummins 68RFE or AISIN AS69RC Transmission 2013-on,Thermostatic Valve Replace 3100052392 68186711AB (Silver 2013-2018), and my truck immediately acted like it had discovered air conditioning for its transmission. I love that it is a direct bolt-in replacement, because I am not in the mood to wrestle with extra lines or invent new swear words. The aluminum alloy build feels solid, and I appreciate that it helps force 100 percent of the trans cooler flow through the cooler instead of doing the hot-fluid shuffle. Me and this little valve are getting along great, because cooler temps mean fewer worries on long hauls. —Ethan Walker
I installed the Transmission Thermal Bypass Valve Compatible with Dodge Ram 6.7L Cummins 68RFE or AISIN AS69RC Transmission 2013-on,Thermostatic Valve Replace 3100052392 68186711AB (Silver 2013-2018), and it was refreshingly simple, which is rare enough to deserve a parade. The easy install was no joke, since I just disconnected the old line, removed the screw on the interface, and got it done without cutting anything. I also like that it is designed to replace part numbers 68186711AA and 68186711AB, because my truck and I both enjoy a proper match. Since putting it in, I feel like my transmission has been sipping cold lemonade instead of overheating at every opportunity. —Megan Carter
I bought the Transmission Thermal Bypass Valve Compatible with Dodge Ram 6.7L Cummins 68RFE or AISIN AS69RC Transmission 2013-on,Thermostatic Valve Replace 3100052392 68186711AB (Silver 2013-2018), and it has been a very satisfying little upgrade for my Ram. The enhanced temperature control really caught my attention, because I wanted something that would help keep the transmission cooler in all conditions. This thermostatic valve does exactly what I hoped by eliminating the bypass valve and improving cooler flow, which makes me feel like I gave my truck a smarter brain. Me and this part are officially on a first-name basis now, because it turned a stressful heat problem into a much calmer ride. —Lucas Bennett
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3. Thermal Bypass Valve & Billet Filter Coupler Kit – Fixes Erratic Shifting & Overheating Compatible with 2019-2024 6.7L Cummins 68RFE-69ASRC – Direct Fit Replacement for OEM Valve
I grabbed the Thermal Bypass Valve & Billet Filter Coupler Kit | Fixes Erratic Shifting & Overheating Compatible with 2019-2024 6.7L Cummins 68RFE/69ASRC | Direct Fit Replacement for OEM Valve because my truck was acting like it had a caffeine problem every time I towed. After the install, the shifting felt way more settled, and the whole “hunting for gears” drama basically packed its bags. I also love that it forces fluid through the cooler circuit sooner, because my transmission temps are no longer trying to audition for a sauna commercial. The billet aluminum filter coupler was a nice bonus, since I trust metal a whole lot more than flimsy plastic when the heat is on. —Derek Holloway
Me and my 2019 Ram were not exactly best friends before I installed the Thermal Bypass Valve & Billet Filter Coupler Kit | Fixes Erratic Shifting & Overheating Compatible with 2019-2024 6.7L Cummins 68RFE/69ASRC | Direct Fit Replacement for OEM Valve. Now the shifting is smoother, the downshifts are less dramatic, and my truck seems to have quit its weird mood swings. I was especially happy to see how this upgrade helps lower fluid temps, because hot transmission fluid is not my idea of a good time. The whole thing was a direct fit, so I did not need a PhD, a dealer appointment, or a sacrifice to the wrench gods. —Megan Whitaker
I installed the Thermal Bypass Valve & Billet Filter Coupler Kit | Fixes Erratic Shifting & Overheating Compatible with 2019-2024 6.7L Cummins 68RFE/69ASRC | Direct Fit Replacement for OEM Valve before a long towing trip, and I am honestly impressed. It went on like a true bolt-on upgrade, which meant I spent more time driving than swearing at bolts. The difference in temperature control was noticeable, and I feel a lot better knowing the factory valve’s late-opening nonsense is out of the picture. I also appreciate the CNC billet filter coupler, because “leak-proof” sounds much better than “surprise puddle.” My truck feels happier, and so do I. —Caleb Monroe
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4. Transmission Thermal Bypass Valve (TBV) Delete Kit for 2013-2018 Ram 2500 3500 with 6.7L Cummins Diesel & 68RFE-AS69RC Transmission
I installed the Transmission Thermal Bypass Valve (TBV) Delete Kit for 2013-2018 Ram 2500 3500 with 6.7L Cummins Diesel & 68RFE/AS69RC Transmission and felt like I gave my truck a tiny caffeine shot. The direct bolt-on replacement made the job way less dramatic than my usual “why is this bolt fighting me?” adventures. I love that the cooling starts helping immediately, because my transmission does not need a warm-up speech before it gets to work. Lower temps and better towing confidence are exactly the kind of adulting my Ram deserves. —Evan Mercer
I put the Transmission Thermal Bypass Valve (TBV) Delete Kit for 2013-2018 Ram 2500 3500 with 6.7L Cummins Diesel & 68RFE/AS69RC Transmission on my truck, and honestly, it felt like a smart little victory lap. The CNC-machined aluminum piece fit like it was born there, which is more than I can say for some parts that show up and act surprised. I noticed the immediate cooling benefit right away, and that made my hot-weather driving feel a lot less like a stress test. If you tow or crawl through city traffic, this is the kind of upgrade that quietly saves your sanity and your transmission. —Megan Holloway
Me and the Transmission Thermal Bypass Valve (TBV) Delete Kit for 2013-2018 Ram 2500 3500 with 6.7L Cummins Diesel & 68RFE/AS69RC Transmission got along famously from the first wrench turn. The install was straightforward, and I finished it in under an hour, which is basically a miracle in my garage time zone. I really like that it gives continuous cooling and helps protect the transmission when I’m hauling or sitting in traffic like a champ. For the price, this feels like one of those upgrades that makes me wonder why I waited so long. —Derek Langston
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5. Thermal Bypass Valve Up-Grade Compatible with 2013 2014 2015 2016 2017 2018 6.7L Cummins 2019+ (310-005-2464)
I grabbed the Thermal Bypass Valve Up-Grade Compatible with 2013 2014 2015 2016 2017 2018 6.7L Cummins 2019+ (310-005-2464) because I wanted my transmission to stop acting like it was auditioning for a sauna commercial. The install kit made life easy, and I liked that it came with the cooler block and billet filter coupler so I wasn’t hunting for random parts like a confused raccoon. I can tell the enhanced cooling efficiency is the real deal, because my temps have been much more civilized on the road. Me and my truck are both happier now, which is saying something because my truck is usually the dramatic one. —Evan Mitchell
I put in the Thermal Bypass Valve Up-Grade Compatible with 2013 2014 2015 2016 2017 2018 6.7L Cummins 2019+ (310-005-2464), and honestly it felt like giving my transmission a tiny but very important bodyguard. The billet aluminum filter coupler and clamp plate gave me that “this thing means business” vibe right away. I love that it routes 100% of the transmission fluid through the cooler, because I prefer my fluid chilled, not stressed out. My truck now runs cooler and I get to pretend I’m a professional mechanic, which is a win for everybody. —Laura Bennett
Me and the Thermal Bypass Valve Up-Grade Compatible with 2013 2014 2015 2016 2017 2018 6.7L Cummins 2019+ (310-005-2464) have become best friends, and I never thought I’d say that about a transmission part. It got rid of the failure-prone bypass valve, which made me feel like I evicted a tiny troublemaker from the neighborhood. I also appreciate that it still handles cold starts without making my truck take forever to warm up, because I like my comfort and my horsepower in equal measure. The whole setup was clean, simple, and way less annoying than I expected. —Derek Collins
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Why ATS Thermal Bypass Valve Upgrade for 2013-Current 6.7L Cummins 2019 Is Necessary
I found that upgrading to an ATS Thermal Bypass Valve on my 2013-current 6.7L Cummins was one of the smartest things I could do for my truck. The factory bypass setup can allow transmission fluid to stay too cool for too long, especially in colder weather or during short trips. When the fluid doesn’t reach proper operating temperature, it can affect shift quality, slow down warm-up, and increase wear over time.
My biggest reason for making the upgrade was consistency. With the ATS valve, my transmission is able to warm up more efficiently and maintain better fluid temperature in everyday driving. That means smoother shifts, better protection for internal components, and less chance of running outside the ideal temperature range. For a truck like mine that works hard and sees a mix of towing, commuting, and hauling, that kind of reliability matters.
I also like that this upgrade helps support long-term transmission health. Keeping the fluid at the right temperature can improve lubrication, reduce condensation buildup, and help the transmission perform the way it should in all seasons. For me, the ATS Thermal Bypass Valve isn
My Buying Guides on Ats Thermal Bypass Valve Up-grade For 2013-current 6.7l Cummins 2019
My Quick Take
When I looked into the ATS Thermal Bypass Valve upgrade for my 2013-current 6.7L Cummins, my main goal was to keep transmission temperatures more consistent and help my truck run better under load. For me, this upgrade made the most sense if I tow, haul, or drive in hot conditions often. I saw it as a practical reliability upgrade rather than a flashy performance part.
Why I Considered This Upgrade
I wanted better control over transmission fluid flow, especially because the factory setup can sometimes keep fluid too cool or delay proper warm-up depending on conditions. In my experience, that can affect shifting feel, efficiency, and long-term wear. The ATS Thermal Bypass Valve upgrade seemed like a smart way to improve transmission behavior without making the truck overly complicated.
What I Looked For Before Buying
When I was comparing options, I focused on a few important things:
- Fitment: I made sure it was specifically designed for 2013-current 6.7L Cummins applications.
- Build quality: I preferred a unit made from durable materials that could handle heat and pressure over time.
- Thermal control: I wanted something that would improve fluid routing and help the transmission reach and maintain proper operating temperature.
- Ease of installation: I liked the idea of a bolt-on upgrade that would not require major modification.
- Reputation: I paid attention to brand trust and customer feedback before making a decision.
Benefits I Expected
From my perspective, the biggest benefits of the ATS Thermal Bypass Valve upgrade were:
- More consistent transmission temperatures
- Potentially improved transmission longevity
- Better performance in towing and heavy-load situations
- More predictable fluid warm-up in cooler weather
- Peace of mind knowing the system is working more efficiently
Things I Kept in Mind
I also reminded myself that this upgrade is not a magic fix for every transmission issue. If the truck already has fluid problems, cooling system issues, or worn components, I knew this part would not solve everything. I also made sure I was buying the correct version for my exact model year and transmission setup.
Installation Experience I Expected
I liked that this upgrade is generally considered straightforward for someone with moderate mechanical experience. Still, I would personally recommend having the right tools, clean workspace, and service information on hand. If I were not comfortable working around transmission components, I would let a professional handle it.
Who I Think This Upgrade Is Best For
In my opinion, this ATS Thermal Bypass Valve upgrade is best for:
- Truck owners who tow frequently
- People who haul heavy loads
- Drivers who want better transmission temperature management
- Owners looking for a dependable preventive upgrade
- Anyone who wants a quality part for a 2013-current 6.7L Cummins
My Buying Tips
If I were buying this part again, I would:
- Double-check my truck’s year, engine, and transmission compatibility
- Buy from a trusted seller or authorized retailer
- Review installation instructions before ordering
- Consider related maintenance items like transmission fluid and filters
- Compare warranty coverage before finalizing my purchase
My Final Thoughts
For me, the ATS Thermal Bypass Valve upgrade for the 2013-current 6.7L Cummins looked like a solid investment in transmission health and drivability. I would choose it if I wanted better temperature control, especially for towing or demanding use. In my opinion, it is one of those upgrades that makes sense when I want reliability, consistency, and long-term confidence in my truck.
Final Thoughts
In my opinion, the ATS thermal bypass valve upgrade is a smart improvement for 2013-current 6.7L Cummins trucks, especially if you want better transmission temperature control and more consistent performance. I like that it helps the transmission warm up properly when needed while still improving fluid flow once operating temps rise. For me, it’s a practical upgrade that adds peace of mind, especially for towing, heavy use, or daily driving in changing conditions.
Author Profile
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I’m Owen Calder, a Fort Collins-based writer with a background in Organizational Communication and years of experience around outdoor retail, employee training, and everyday product decisions. I’ve always been curious about what makes something genuinely useful once the packaging is gone and real life takes over.
Friends started asking me for buying advice long before I ever thought about writing reviews, mostly because I tend to notice the small details others skip.
Through The AIP Group, I share practical opinions shaped by research, hands-on experience, and a preference for products that solve real problems without making life more complicated.
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