November 24, 2015
It is recommended that this kit only be utilized in warm climates, or with synthetic fluids when used to replace the OE thermal bypass element. If used in '17-later applications to replace a missing blocker plug, it must be used in conjunction with Sonnax converter limit valve kit 126740-25K. See instructions for details.
Sonnax bypass blocker valve kit 126740-26K for Ford 6R140 transmissions eliminates the faulty OE thermal element that often sticks and causes overheat issues. The drop-in Zip Valve™ installs quickly and easily.
Learn More About Zip Valve™ Drop-In RepairsNovember 24, 2015