Pacific Performance Engineering PPE Automatic Transmission Fluid Thermal Bypass Valve Compatible with 2014-2018 GM Tahoe Silverado Sierra 1500 Escalade Yukon 6L80 5.3L 6.2L 4.3L 125068000

Awesome, product. Easy to install. I tested this on my truck at 60 F ambient temperatures. At constant highway speeds the transmission stayed around 135 F. If I do a lot of slow and stop and go driving I could get it as high was 150 but as soon as you start moving air through the cooler again the temps immediately start dropping again.My only complaint is they don’t ship these with the magnetic plug tightened and I didn’t check it. I was already looking for leaks anyway so not a big deal but it came pouring out of the top magnetic check port since it was not tight from the factory.

Well, I can tell you is that it was a direct fit does not come with gasket so please order that separately or use what you have. It takes takes out the work or gamble of rebuilding your existing piece which I initially had the parts for but opted to just buy the whole unit and just swap out temperature in central California that I’ve seen thus far was around 140-150° on average so I guess it works as the average temp that I saw was closer to 185 to 200 on back road driving and not even hauling anything.

Exactly what I needed. Previous transmission cooked at 75000 miles. Was running at 190-215°. Chevy put a new transmission in. Was running at 190° consistently. Put about 2000 miles on it just to watch the temp.Changed to this new bypass, and the temp thus far doesn't get above 145°! Massive difference! Very impressed. Easy to swap over.I just added thousands of miles to this transmissions life. Definitely recommended.

AMAZING 🤩 My truck temperature went down drastically, the max I got after beating the transmission to the max was between 158-160 degrees

Quality built product but did not come with gasket and is only open port so transmission never gets to proper operating tempGood product but wrong for me

Fast shipping. Installed in about 15 mins. And drop transmission temperature about 30 degrees.

Very high quality replacement part to keep your 6L80 transmission running cooler by deleting the factory transmission Thermal Bypass. Only reason for only 4 stars is the placement ov the service plug. The service plug with a magnet is a great feature, but ONLY if it's accessible once installed. Being on top surrounded by exhaust, & front 4x4 drive shaft, it's about impossible to remove without removing the whole assembly first. Looks good online until you see it installed.

Super easy to swap out the old one and functions like to should. Now my (6L80) transmission temp stays about 45-50 cooler.