Vehicles with listed GM Gen. 3 6T40 transmissions may exhibit no line rise or low line pressure due to excess wear in the pressure regulator isolator valve assembly. The pressure regulator isolator valve reacts against the pressure regulator valve, controls balance pressure, and dampens and smooths pressure pulses from the pressure control solenoid. Excess wear can lead to undesirable shift operation and burned clutches. Installing Sonnax pressure regulator isolator valve kit 144510-15K restores proper line pressure control for renewed shift feel and performance.

Sleeve manufactured from highly wear-resistant aluminum
Hardcoat anodized aluminum valves combat premature wear
Annular grooves help center valve in sleeve to reduce future side-load wear
Drop-in Zip Valve™ parts install quickly and easily

Learn More About Zip Valve™ Drop-In Repairs

More From This Category

Sonnax Clutch A Control Boost Valve Kit, Ford, ZF6Hp19/26/32, 6R60/75/80/100, Each

Sonnax Clutch A Control Boost Valve Kit, Ford, ZF6Hp19/26/32, 6R60/75/80/100, Each

$118.83

MANLEY Valve, Titanium, Intake, Bead Loc, 2.1 in. Head Dia, 0.3415 in. Stem Dia, 5.04 in. Height, Each

MANLEY Valve, Titanium, Intake, Bead Loc, 2.1 in. Head Dia, 0.3415 in. Stem Dia, 5.04 in. Height, Each

$302.72

MANLEY Valve, Custom, Titanium, .3110 in. Stem Dia, Each

MANLEY Valve, Custom, Titanium, .3110 in. Stem Dia, Each

$318.84

Sonnax Boost Valve Kit, GM, 4L30E, Ar25, Ar35, Oe Code 264, Each

Sonnax Boost Valve Kit, GM, 4L30E, Ar25, Ar35, Oe Code 264, Each

$75.20

MANLEY Valve, Severe Duty, Intake, 2.02 in. Head Dia, 0.3415 in. Stem Dia, 5.14 in. Length, SBC, Each

MANLEY Valve, Severe Duty, Intake, 2.02 in. Head Dia, 0.3415 in. Stem Dia, 5.14 in. Length, SBC, Each

$78.54

MANLEY Valve, Pro Flo, Intake, 1.937 in. Head Dia, 0.3415 in. Stem Dia, 4.911 in. Length, SBC, Each

MANLEY Valve, Pro Flo, Intake, 1.937 in. Head Dia, 0.3415 in. Stem Dia, 4.911 in. Length, SBC, Each

$75.93