Toyota/Lexus vehicles equipped with an A130, A131 and A140 transaxle may exhibit insufficient line rise in the drive ranges and excessively high pressures in Reverse. This may be caused by extreme wear of the boost sleeve. Wear allows TV oil to exhaust through the manual valve in drive ranges and Reverse oil can enter the TV circuit, forcing the pressure regulator valve into a high pressure position. Sonnax boost valve kits 89010-01K and 89010-02K will restore the hydraulic integrity of these circuits by preventing cross leakage.

Sleeves are made from high-quality aluminum for better wear resistance
Hardcoat anodized aluminum valve combats premature wear
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, Exhaust, 30mm Head Dia, 0.274 in. Stem Dia, 4.587 Length, For Ford, Set of 8

MANLEY Valve, Race Master, Exhaust, 30mm Head Dia, 0.274 in. Stem Dia, 4.587 Length, For Ford, Set of 8

$408.60

MANLEY Valve, Race Master, Exhaust, 32.0 mm Head Dia, 6 mm Stem Dia, 94.0 mm Length, For Nissan VQ35, Set of 12

MANLEY Valve, Race Master, Exhaust, 32.0 mm Head Dia, 6 mm Stem Dia, 94.0 mm Length, For Nissan VQ35, Set of 12

$849.04

MANLEY Valve, Race Master, Exhaust, 29 mm Head Dia, 6 mm Stem Dia, 101.52 mm Length, For Mazda Miata, Each

MANLEY Valve, Race Master, Exhaust, 29 mm Head Dia, 6 mm Stem Dia, 101.52 mm Length, For Mazda Miata, Each

$49.91

MANLEY Valve, Pro Flo, Intake, 2.205 in. Head Dia, 0.3133 in. Stem Dia, 5.2 in. Length, For Chevrolet LS7, Each

MANLEY Valve, Pro Flo, Intake, 2.205 in. Head Dia, 0.3133 in. Stem Dia, 5.2 in. Length, For Chevrolet LS7, Each

$75.93

MANLEY Valve, Race Master, Intake, 2.08 in. Head Dia, 0.3415 in. Stem Dia, 5.34 in. Length, For Chevrolet SB, Each

MANLEY Valve, Race Master, Intake, 2.08 in. Head Dia, 0.3415 in. Stem Dia, 5.34 in. Length, For Chevrolet SB, Each

$47.58

MILODON Valves, Exhaust, Race, Stainless Steel, 1.625 in. Dia, +.200 Long, Small For Chevrolet, 350, 383, 400, Set of 8

MILODON Valves, Exhaust, Race, Stainless Steel, 1.625 in. Dia, +.200 Long, Small For Chevrolet, 350, 383, 400, Set of 8

$432.85