2014-2018 GM 6L80 Transmission Fluid Thermal Bypass Valve Pacific Performance Engineering

2014-2018 GM 6L80 Transmission Fluid Thermal Bypass Valve - 3/8'' Line

2014-2018 GM 6L80 Transmission Fluid Thermal Bypass Valve - 3/8'' Line

Name: 2014-2018 GM 6L80 Transmission Fluid Thermal Bypass Valve - 3/8'' Line
Brand: Pacific Performance Engineering
SKU: 125068000
Price: 89.99 USD
Availability: InStock

$89.99 In Stock Temporarily Out of Stock

PART NUMBER: 125068000 GTIN: 840171221053

Features:

Maximizes fluid flow to and from the transmission cooler
Billet aluminum construction
Direct fit with OEM 6L80 6-Speed transmission and fluid lines
Service plug with Neodymium magnet and O-ring seal

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1 YEAR LIMITED WARRANTY

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Description
Compatible Vehicles
Downloads

6L80 Transmission Fluid Thermal Bypass Valve

Add another measure of protection and increase fluid flow to transmission cooler. Increase cooling capacity with this easy-to-install billet aluminum PPE Transmission Fluid Thermal Bypass Valve for the GM 6L80 6-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.

For further protection, a Neodymium magnet equipped service plug with 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.

6L80 Transmission Fluid Thermal Bypass Valve for 2014-2018 GM

Check for Compatibility!

Vehicles equipped with quick connect fittings and clip-style trans line retainers are not compatible with PPE p/n 125068000 6L80 Thermal Bypass valve.
6L80 Transmission Fluid Thermal Bypass Valve for 2014-2018 GM

Vehicles equipped with the plate and bolt-style trans line retainer is compatible with PPE p/n 125068000 6L80 Thermal Bypass Valve.
6L80 Transmission Fluid Thermal Bypass Valve for 2014-2018 GM

GM Equivalent P/N: 85585333

125068000 | Transmission Fluid Thermal Bypass Valve - 6L80

Installation Guide

Almost works too good

Absolutely does what it says. Lowered my trans temp from an average of 170-180 to 110-120 here in the dead of winter. Should work great in the summer months when towing my camper. Now the negative. After a 750 mile round trip journey with the new lower temps I lost 2-3mpg cruising at interstate speeds. I’m sure this won’t be an issue in the summer. Just felt it should be noted for people in colder climates.

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