Toyota/Lexus U660E/F and U760E/F six speed automatic transmissions can experience several problems which can be traced back to the secondary pressure regulator valve. These include transmission overheat, bushing and bearing failures along with other lube related failures. TCC operation can also be negatively affected.
One cause for these problems is bore wear at the secondary pressure regulator valve. This allows SLT and/or balance oil to leak, resulting in low cooler and lube circuit pressures. To restore the bore and correct circuit pressures, recondition the bore and install Sonnax oversized secondary pressure regulator valve kit, 47740-26K.

Hardcoat anodized aluminum valve combats premature wear
Annular grooves on the valve help center it in the bore to reduce future side-load wear

More From This Category

Sonnax Tcc Regulator Valve, Ford, 4R44E/4R55E, 5R44E/5R55E, Each

Sonnax Tcc Regulator Valve, Ford, 4R44E/4R55E, 5R44E/5R55E, Each

$29.02

COMP Cams Valve, Sportsman, Stainless Steel, Intake, GM LS7, 2.200 in. Head, 5.550 in. Length, Set of 8

COMP Cams Valve, Sportsman, Stainless Steel, Intake, GM LS7, 2.200 in. Head, 5.550 in. Length, Set of 8

$1,910.22

MANLEY Valve, Severe Duty, Intake, 2.3 in. Head Dia, 0.3415 in. Stem Dia, 5.494 in. Length, Each

MANLEY Valve, Severe Duty, Intake, 2.3 in. Head Dia, 0.3415 in. Stem Dia, 5.494 in. Length, Each

$79.73

MANLEY Valve, Titanium, Intake, Bead Loc, 2.3 in. Head Dia, 0.3415 in. Stem Dia, 5.5 in. Length, Set of 8

MANLEY Valve, Titanium, Intake, Bead Loc, 2.3 in. Head Dia, 0.3415 in. Stem Dia, 5.5 in. Length, Set of 8

$2,678.30

MANLEY Valve, Titanium, Intake, 2.25 in. Head Dia, 0.3415 in. Stem Dia, 5.25 in. Length, Set of 8

MANLEY Valve, Titanium, Intake, 2.25 in. Head Dia, 0.3415 in. Stem Dia, 5.25 in. Length, Set of 8

$2,678.30

MANLEY Valve, Titanium, Exhaust, Bead Loc, 1.6 in. Head Dia, 0.3415 in. Stem Dia, 5.14 in. Height, Set of 8

MANLEY Valve, Titanium, Exhaust, Bead Loc, 1.6 in. Head Dia, 0.3415 in. Stem Dia, 5.14 in. Height, Set of 8

$2,584.74