MishimotoMMTC-RAM-TBV Thermal Bypass Valve Kit Compatible With Dodge Ram 6.7L Cummins 2013-2018

It was absolutely easy to remove the original thermostatic bypass and put upgrade it with this one! The Temps can be very deceiving however, this unit runs roughly 50 degrees cooler than mine right up to the point of stop and go traffic, once on the highway it cools off immediately compared to the OEM! And it keeps it cool in the mid 130's, well worth the upgrade to keep the tyranny happy!

I live in a cold climate and needed the thermostat for winter but not for summer, this model allows you to pull out the thermostat and add a bypass insert to allow flow through the valve.

Was really impressed how easy this was to install and how well it kept my transmission cool

Full bypass works but as far as the actual thermostatic function it does not help warm up your trans in cold weather, trans takes forever to warm up when cold. Definitely not worth what they are asking

Very expensive $178 the part + $95 shipping and tax, so more than 60% more expensive than the part itself!!!. And I don't have to pay to see myself stolen. I warned mishimoto since I have an account with them.ROYAL PART We will no longer do business with you🤬🤬

Installation was pretty easy. Trans is running around 158-160 f with normal driving, cooler that OEM. True test will be when towing and longevity of product.

In conjunction with using the Mag-Hytec pan I have lower transmission temps - 167* to 137* In addition i have peace of mind knowing that Mishimoto MMTC-RAM-TBV Thermal Bypass Valve will not fail as the OE has been known to fail.

I purchased this because i wanted some lower temps in my aisin transmission. I run hotshot so I am regularly towing weight over long distances. I chose this product specifically because it offered a thermostatic bypass which would allow for the trans to warm up quicker in low temps and stay at a decent operating temp in cold weather. After driving in 55 degree weather I was showing temps of 118 in the transmission which is already to low I am scared how it will be when ambient temps drop near 0. In addition, when idling the temps go extremely high last night after idling for about 10-15 min my trans temp was reading 180+. The stock unit on my truck was usually between 161-167 when operating and 155-160 when at idle. Maybe I just got a bad thermostat? I am not sure but I am considering going back to stock. I am gonna try to contact mishimoto to see if this is a normal thing but so far I am not to pleased. I will update this review if something changes.