The OE thermal bypass valve in listed units is known to get stuck in recirculation mode, only allowing fluid to circulate in the transmission and not allowing flow through the cooler. Sonnax thermal bypass eliminator kit 72760-01K allows reuse of the OE cooler block with the built-in pressure relief by removing the old OE thermal bypass valve and replacing it with a plug that permanently allows flow through the cooler.

Drop-in Zip Valve™ parts install quickly and easily into OE cooler bypass valve
Less expensive than replacing the OE cooler bypass valve


Learn More About Zip Valve™ Drop-In Repairs

More From This Category

ARP Cylinder Head Stud, Pro-Series, 12-point Head, For Toyota, 2.0L (3SGTE) DOHC Custom Age 625+, Kit

ARP Cylinder Head Stud, Pro-Series, 12-point Head, For Toyota, 2.0L (3SGTE) DOHC Custom Age 625+, Kit

$718.74

Nitrous Express 5.0L Coyote And 7.3L Godzilla Plate System(50-200Hp) w/ Composite Bottle , Kit

Nitrous Express 5.0L Coyote And 7.3L Godzilla Plate System(50-200Hp) w/ Composite Bottle , Kit

$3,114.30

NOS Nitrous System, Wet Plate Kit, 2014-2019 C7 Corvette LT6.2L, 150HP, blue 10lb bottle

NOS Nitrous System, Wet Plate Kit, 2014-2019 C7 Corvette LT6.2L, 150HP, blue 10lb bottle

$2,497.39

Trick Flow Valve Cover Gaskets, Rubber with Steel Core, For Chevrolet, Small Block, Pair

Trick Flow Valve Cover Gaskets, Rubber with Steel Core, For Chevrolet, Small Block, Pair

$131.95

COMP Cams Cam / Lifters / Valvetrain Thumpr Hydraulic Flat Advertised Duration 279 / 296 Lift .4

COMP Cams Cam / Lifters / Valvetrain Thumpr Hydraulic Flat Advertised Duration 279 / 296 Lift .4

$1,356.64

CVF Racing Water Pump Pulley, V-Belt SWP, For Chevrolet Small Block, Kit

CVF Racing Water Pump Pulley, V-Belt SWP, For Chevrolet Small Block, Kit

$151.34