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, Custom, Titanium, .3415 in. Stem Dia, Set of 8

MANLEY Valve, Custom, Titanium, .3415 in. Stem Dia, Set of 8

$2,293.03

COMP Cams Valve, Sportsman, Stainless Steel, Exhaust, For Chevrolet Small Block, 1.600 in. Head, 5.111 in. Length, Each

COMP Cams Valve, Sportsman, Stainless Steel, Exhaust, For Chevrolet Small Block, 1.600 in. Head, 5.111 in. Length, Each

$33.56

MANLEY Valve, Race Master, Exhaust, Bead Loc, 1.575 in. Head Dia, 0.3125 in. Stem Dia, 5.125 in. Length, For Chrysler HEMI, Each

MANLEY Valve, Race Master, Exhaust, Bead Loc, 1.575 in. Head Dia, 0.3125 in. Stem Dia, 5.125 in. Length, For Chrysler HEMI, Each

$50.05

MILODON Valves, Exhaust, Race, Stainless Steel, 1.625 in. Diameter, For Chevrolet, Small Block, 350, 383, 400, Set of 8

MILODON Valves, Exhaust, Race, Stainless Steel, 1.625 in. Diameter, For Chevrolet, Small Block, 350, 383, 400, Set of 8

$414.64

MANLEY Valve, Street Master, Intake, 2.25 in. Head Dia, 0.3415 in. Stem Dia, 5.244 in. Length, BBC, Set of 8

MANLEY Valve, Street Master, Intake, 2.25 in. Head Dia, 0.3415 in. Stem Dia, 5.244 in. Length, BBC, Set of 8

$299.37