In Ford Gen. 1 and 2 6F35 transmissions, the function of the solenoid pressure regulator is to provide regulated pressure to shift solenoids. Wear in the solenoid pressure regulator bore causes low clutch pressure and results in transmission slips and harsh shifts. This eventually leads to a loss of 4th through 6th Gears and finally the loss of transmission function.
Installing Sonnax solenoid pressure regulator valve kit 144740-37K renews the hydraulic integrity of this circuit, restoring normal shift operation and feel. This drop-in sleeve/valve assembly provides a new and unworn bore for hydraulic sealing of the valve while the sleeve seals off existing moderate bore wear to prevent fluid loss. A new spring to provide correct limit pressure with the sleeve/valve assembly is also provided.

Hardcoat anodized aluminum valve combats premature bore wear
Highly wear-resistant billet sleeve seals bore from wear-related fluid loss and provides a new, unworn bore for the valve to operate within
New spring provided for correct limit pressure
Drill and plug included to allow for quick rerouting of balance oil at the separator plate
Drop-in Zip Valve™ parts install quickly and easily

Learn More About Zip Valve™ Drop-In Repairs

More From This Category

COMP Cams Valve, Sportsman, Stainless Steel, Intake, GM LS, 2.080 in. Head, 4.900 in. Length, Set of 8

COMP Cams Valve, Sportsman, Stainless Steel, Intake, GM LS, 2.080 in. Head, 4.900 in. Length, Set of 8

$404.99

MANLEY Valve, Extreme Duty, Exhaust, 1.6 in. Head Dia, 0.3415 in. Stem Dia, 5.365 in. Length, SBC, Each

MANLEY Valve, Extreme Duty, Exhaust, 1.6 in. Head Dia, 0.3415 in. Stem Dia, 5.365 in. Length, SBC, Each

$129.64

Sonnax Boost Valve Kit, Ford, A4Ld, Low Ratio, Each

Sonnax Boost Valve Kit, Ford, A4Ld, Low Ratio, Each

$96.08

Sonnax Oversized Clutch A & Clutch E Control Valve Kit, ZF6Hp21/28/34, (Gen 2) E-Shift, Each

Sonnax Oversized Clutch A & Clutch E Control Valve Kit, ZF6Hp21/28/34, (Gen 2) E-Shift, Each

$132.84

MANLEY Valve, Extreme/Severe Duty, Exhaust, 1.94 in. Head Dia, 0.3715 in. Stem Dia, 5.65 in. Length, Gen II, Each

MANLEY Valve, Extreme/Severe Duty, Exhaust, 1.94 in. Head Dia, 0.3715 in. Stem Dia, 5.65 in. Length, Gen II, Each

$85.44

MANLEY Valve, Severe Duty, Intake, 2.3 in. Head Dia, 0.3415 in. Stem Dia, 5.61 in. Length, Each

MANLEY Valve, Severe Duty, Intake, 2.3 in. Head Dia, 0.3415 in. Stem Dia, 5.61 in. Length, Each

$78.54