Transmission Parts Toyota/Lexus U241E U240E U140F U140E Valve Body Valve / Sleeve

Symptoms:

Soft shifts
Low line rise in Drive
High line pressure in Reverse

Cause:

Severe wear of the boost valve sleeve, allows EPC and Reverse oil leakage.

Correction:

Sonnax drop-in boost valve kit has upgraded materials and minimal clearances to prevent wear and restore proper hydraulic control.

U140E, U140F, U240E, U241E

Boost Valve Kit
Part No. 57917E-01K

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Toyota/Lexus vehicles with U140E, U140F, U240E and U241E transmissions may exhibit insufficient line rise in the drive ranges and excessive high pressures in Reverse. This may be caused by continuous oscillation of the steel boost valve within the cast-aluminum sleeve, creating excessive wear and a path for EPC and Reverse pressures to leak. Sonnax boost valve kit 57917E-01K has upgraded materials to prevent wear and to restore proper hydraulic control.

Boost sleeve manufactured from highly wear-resistant billet aluminum to prevent the excessive wear exhibited by the cast OE sleeve
Hardcoat anodized aluminum valve combats premature wear
Restores proper line rise
Drop-in Zip Valve^™ parts install quickly and easily

Learn More About Zip Valve™ Drop-In Repairs

Contents

Valve
Sleeve
Plug

Valve Body Layout

Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.