2017-2019 GM 6.6L Duramax Transmission Fluid Thermal Bypass Valve
2017-2019 GM 6.6L Duramax Transmission Fluid Thermal Bypass Valve Pacific Performance Engineering
2017-2019 GM 6.6L Duramax Transmission Fluid Thermal Bypass Valve Pacific Performance Engineering
2017-2019 GM 6.6L Duramax Transmission Fluid Thermal Bypass Valve Pacific Performance Engineering
2017-2019 GM 6.6L Duramax Transmission Fluid Thermal Bypass Valve Pacific Performance Engineering
2017-2019 GM 6.6L Duramax Transmission Fluid Thermal Bypass Valve
2017-2019 GM 6.6L Duramax Transmission Fluid Thermal Bypass Valve Pacific Performance Engineering
2017-2019 GM 6.6L Duramax Transmission Fluid Thermal Bypass Valve Pacific Performance Engineering
2017-2019 GM 6.6L Duramax Transmission Fluid Thermal Bypass Valve Pacific Performance Engineering
2017-2019 GM 6.6L Duramax Transmission Fluid Thermal Bypass Valve Pacific Performance Engineering

2017-2019 GM 6.6L Duramax Transmission Fluid Thermal Bypass Valve

$158.00 In Stock Temporarily Out of Stock
42081864188147
PART NUMBER: 125065000 GTIN: 840171213881

Features:

  • Feed 100% of the transmission fluid through the front-mounted transmission coolers
  • Neodymium magnet equipped service plug removes metal particles
  • Increased flow compared to the factory-restrictive thermostat even when it’s fully opened
  • Billet aluminum construction
  • Easy bolt-on installation

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  • Description
  • Compatible Vehicles
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  • Reviews

Add another measure of protection and increase fluid flow with the easy-to-install billet aluminum PPE Transmission Fluid Thermal Bypass Valve for the GM L5P Duramax Diesel.

The OEM part has restrictive internal passages. When the OEM valve fails in the closed position, transmission fluid doesn’t reach your cooler. This can be caused by mechanical failure or debris. The result of stock valve failure can cause the transmission to dangerously overheat. Without properly cooled transmission fluid, the demands of towing and rigorous stop-and-go driving conditions shorten the life of transmission components. The PPE Bypass Valve eliminates the mechanical valve which maximizes fluid flow from the transmission cooler.

For further protection, a Neodymium magnet equipped service plug has been added. The removable plug traps ferrous debris and can be accessed to remove particles from the system. The factory part does not have this feature.

 GM Equivalent P/N: 23413140

Customer Reviews

Based on 22 reviews
95%
(21)
5%
(1)
0%
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0%
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0%
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R
Richard
2016 Ram 2500 6.7 Cummins w/68rfe

The thermal bypass paired with the deeper pan, towed 9k from Sacramento to Coos Bay Oregon. I don’t think my transmission ever reached 160. Very very pleased with my purchase from PPE. Cooled my transmission down greatly. And with their upgraded spin on filter, truck is shifting like butter!

J
Jonathan T.
DON'T FOR GET TO TIGHTEN THE PLUG

HAVEN'T SEEN A DRAMTIC DIP IN TEMPERATURES AND I WAS A DUMMY AND DIDN'T CHECK THE PLUG BEFORE A TEST DRIVE AND LOST NEARLY A GALLON OF FLUID. OOPS MY BAD BUT AT LEAST THE BOTTOM OF MY SUBURBAN WON'T RUST FOR A WHILE

R
Robert C.C.
Perfect product and easy install

My 2017 Silverado z71 was noticed to be running warm in the 180s even on casual evening grocery runs. Swapped this out in the driveway while dinner was cooking and took it out for a night cruise later on. Stayed around 135-138 with a casual 1 hour drive averaging 45 mph and alot of stop and go. Got up to 145 ish after some red light pulls but never went higher.
Can’t say enough about PPE for designing this solution to the Gm failure.

P
Paul M.
I wish I did this sooner

my first 6L80 trans failed at 64,000 miles with light use, the dealer gave me a new one, I lost confidence in this GM transmission, I installed your thermal bypass valve and it now runs up to 50 degrees cooler, thanks.

B
BP P.
Great quality, easy to install

Really nice part. Good quality, no issues so far. Does what it says and keeps my trans temp down around 160 even in Texas heat.

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