Forward clutches in Ford 6R140 transmissions are applied in 1st through 4th Gears in conjunction with other clutches. As the forward clutch regulator valve oscillates and strokes over time, bore deterioration results, allowing pressure loss that prevents proper hydraulic control of the forward clutches. This can cause no or delayed Forward, slipping, fluid overheat, burnt clutches, ratio or solenoid codes and failsafe operation.
Reconditioning the bore and installing Sonnax oversized forward clutch regulator valve kit 126740-13K restores normal shift operation and clutch control for revived forward operation.

New spring matches OE calibration
Hardcoat anodized aluminum valve combats premature wear

More From This Category

MANLEY Valve, Severe Duty, Exhaust, 1.625 in. Head Dia, 0.3415 in. Stem Dia, 5.465 in. Length, Each

MANLEY Valve, Severe Duty, Exhaust, 1.625 in. Head Dia, 0.3415 in. Stem Dia, 5.465 in. Length, Each

$75.93

MANLEY Valve, Race Master, Intake, 2.02 in. Head Dia, 0.311 in. Stem Dia, 5.728 in. Length, For Dodge, Set of 10

MANLEY Valve, Race Master, Intake, 2.02 in. Head Dia, 0.311 in. Stem Dia, 5.728 in. Length, For Dodge, Set of 10

$500.47

MANLEY Valve, Severe Duty, Exhaust, 1.9 in. Head Dia, 0.311 in. Stem Dia, 5.522 in. Length, For Chevrolet BB, Each

MANLEY Valve, Severe Duty, Exhaust, 1.9 in. Head Dia, 0.311 in. Stem Dia, 5.522 in. Length, For Chevrolet BB, Each

$75.93

MANLEY Valve, Race Flo, Intake, 2.165 in. Head Dia, 0.3133 in. Stem Dia, 5.2 in. Length, For Chevrolet L92, Each

MANLEY Valve, Race Flo, Intake, 2.165 in. Head Dia, 0.3133 in. Stem Dia, 5.2 in. Length, For Chevrolet L92, Each

$51.07

MANLEY Valve, Titanium, Intake, Bead Loc, 2.08 in. Head Dia, 0.311 in. Stem Dia, 5.14 in. Height, Each

MANLEY Valve, Titanium, Intake, Bead Loc, 2.08 in. Head Dia, 0.311 in. Stem Dia, 5.14 in. Height, Each

$320.57

MANLEY Valve, Extreme Duty, Exhaust, 1.88 in. Head Dia, 0.3415 in. Stem Dia, 5.522 in. Length, For Chevrolet BB, Each

MANLEY Valve, Extreme Duty, Exhaust, 1.88 in. Head Dia, 0.3415 in. Stem Dia, 5.522 in. Length, For Chevrolet BB, Each

$129.64