Vehicles with Toyota/Lexus U341E and U341F transmissions commonly have TCC problems such as harsh apply and release or excess slip, often accompanied by TCC codes. These issues can be caused by bore wear at the secondary pressure regulator valve, which allows vital fluid to escape the circuit. In addition, cooler and lube pressures can be negatively affected, resulting in overheating and lube failures. Reconditioning the bore and installing Sonnax oversized secondary pressure regulator valve kit 37740-07K restores critical clearances for renewed TCC, cooler and lube operation.

Lengthened critical spool for added stability and wear prevention
Hardcoat anodized aluminum valve combats premature wear

More From This Category

MANLEY Valve, Severe Duty, Intake, 2.325 in. Head Dia, 0.3415 in. Stem Dia, 6.59 in. Length, BBC, Set of 8

MANLEY Valve, Severe Duty, Intake, 2.325 in. Head Dia, 0.3415 in. Stem Dia, 6.59 in. Length, BBC, Set of 8

$628.35

MANLEY Valve, Street Flo, Exhaust, 1.55 in. Head Dia, 0.3415 in. Stem Dia, 5.08 in. Length, For Ford SB, Set of 8

MANLEY Valve, Street Flo, Exhaust, 1.55 in. Head Dia, 0.3415 in. Stem Dia, 5.08 in. Length, For Ford SB, Set of 8

$280.36

Sonnax Afl/Solenoid Pressure Regulator Valve Kit, Ford, 6F50/55, 6T70/75 Gen I, Each

Sonnax Afl/Solenoid Pressure Regulator Valve Kit, Ford, 6F50/55, 6T70/75 Gen I, Each

$121.22

MANLEY Valve, Severe Duty, Exhaust, 1.9 in. Head Dia, 0.3415 in. Stem Dia, 5.522 in. Length, Set of 8

MANLEY Valve, Severe Duty, Exhaust, 1.9 in. Head Dia, 0.3415 in. Stem Dia, 5.522 in. Length, Set of 8

$607.34

MANLEY Valve, Custom, Titanium, .3415 in. Stem Dia, Each

MANLEY Valve, Custom, Titanium, .3415 in. Stem Dia, Each

$326.62

MANLEY Valve, Race Flo, Intake, 35.5 mm Head Dia, 5.5 mm Stem Dia, 109.22 mm Length, For Honda, Set of 8

MANLEY Valve, Race Flo, Intake, 35.5 mm Head Dia, 5.5 mm Stem Dia, 109.22 mm Length, For Honda, Set of 8

$399.33