2015-2018 SILVERADO/SIERRA 1500 W/ 8L90 TRANSMISSION AND 3/8

2015-2018 SILVERADO/SIERRA 1500 W/ 8L90 TRANSMISSION AND 3/8" LINE - TRANSMISSION FLUID THERMAL BYPASS VALVE

Name: 2015-2018 SILVERADO/SIERRA 1500 W/ 8L90 TRANSMISSION AND 3/8" LINE - TRANSMISSION FLUID THERMAL BYPASS VALVE
Brand: Pacific Performance Engineering
SKU: 125071000
Price: 147.0 AUD
Availability: InStock

$147.00 In Stock Temporarily Out of Stock

PART NUMBER: 125071000 GTIN: 840171223149

Features:

Maximizes fluid flow to and from the transmission cooler
Billet aluminum construction
Direct fit with OEM 8L90 8-speed transmission and fluid lines
Service plug with Neodymium magnet and O-ring seal

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Description
Compatible Vehicles
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Reviews

Transmission Fluid Thermal Bypass Valve

Add another measure of protection and increase fluid flow to the transmission cooler. Increase cooling capacity with this easy-to-install billet aluminum PPE Transmission Fluid Thermal Bypass Valve for the GM 8L90 8-speed transmission.

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 extremely restrictive mechanical factory valve, maximizing fluid flow to and from the transmission cooler.

Transmission Fluid Thermal Bypass Valve

For further protection, a Neodymium magnet-equipped service plug with an O-ring seal has been added. The removable plug traps ferrous debris and can be accessed to remove particles from the system. The factory bypass valve does not have this feature.

2024 GMC Sierra 1500 diesel 3.0 liter LZ0

Installed the transmission bypass valve today, resulting in a significant temperature drop from a consistent 190-225°F to 120-145°F. Amazing performance, and thank you for exceeding expectations.

Worth every penny !

Installation on my 2018 Chevy 8L90 was breeze and my transmission is running nice and cool in this Florida weather . I did replace the old gasket seal with a new one . It would be nice to see one (gasket) come with this TBV as a kit to make it that much more complete but overall I am highly satisfied with this product.
Note to the DIY’ers: Be sure to keep up with the small o-ring seals on your trans lines when removing the stock valve . One of mine stayed in the old block hole and I almost missed it.

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!

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

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.