Ford 6F35 Gen. 1 and Gen. 2 units incorporate a low-pressure compensator feed circuit to assist clutch return springs during release of Overdrive (4,5,6) and Direct (3,5,R) clutches. After clutches disengage, the compensator feed circuit maintains pressure in the clutch release cavity to oppose centrifugal application of the clutches.
Control over this process resides with the control pressure regulator valve. When the bore wears, correct valve operation is hindered, causing clutch apply timing issues such as harsh shifting, flares and bump shifts. In addition, overheated fluid and burnt clutches can result.
Installing Sonnax control pressure regulator valve kit 144740-04K restores normal compensator action, extending the service life of these units beyond that of the OE valve body casting.

Hardcoat anodized aluminum valve combats premature wear
Highly wear-resistant sleeve provides additional valve support
Includes a calibrated spring for restoring OE compensator pressure
Drop-in Zip Valve™ parts install quickly and easily

Learn More About Zip Valve™ Drop-In Repairs

More From This Category

MANLEY Valve, Race Master, For Toyota 3UR-FE, 38mm Head Dia, Each

MANLEY Valve, Race Master, For Toyota 3UR-FE, 38mm Head Dia, Each

$48.92

MANLEY Valve, Race Flo, Intake, Bead Loc, 2.02 in. Head Dia, 0.3125 in. Stem Dia, 4.955 in. Length, For Chrysler HEMI, Each

MANLEY Valve, Race Flo, Intake, Bead Loc, 2.02 in. Head Dia, 0.3125 in. Stem Dia, 4.955 in. Length, For Chrysler HEMI, Each

$142.29

Sonnax Oversized Pressure Regulator Valve, ZF5Hp19, Late Vb E18.2, Each

Sonnax Oversized Pressure Regulator Valve, ZF5Hp19, Late Vb E18.2, Each

$74.75

Trick Flow Valve, Exhaust, Stainless Steel, 1.760 in. Diameter, .341 in. Stem, 5.060 in. Length, Big For Ford, Each

Trick Flow Valve, Exhaust, Stainless Steel, 1.760 in. Diameter, .341 in. Stem, 5.060 in. Length, Big For Ford, Each

$76.10

MILODON Valves, Intake, Race, Stainless Steel, 2.30 in. Dia, +.350 Long, Big For Chevrolet, 396, 427, 454, 502, Each

MILODON Valves, Intake, Race, Stainless Steel, 2.30 in. Dia, +.350 Long, Big For Chevrolet, 396, 427, 454, 502, Each

$79.09

Sonnax Oversized Tc Pressure Valve Kit, Chrysler, Ch 845Re, ZF8Hp/45/55/70, Each

Sonnax Oversized Tc Pressure Valve Kit, Chrysler, Ch 845Re, ZF8Hp/45/55/70, Each

$37.73