Product Description
Sonnax part number: 27741-01K
U151E U151F U250E Boost Valve Kit
No tooling required
Toyota/Lexus vehicles with U151E, U151F and U250E transmissions may exhibit insufficient line rise in 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 27741-01K has upgraded materials and minimal clearances to prevent wear and restore proper hydraulic control.
- Boost sleeve manufactured from highly wear-resistant billet aluminum to prevent the excessive wear exhibited by the cast OE sleeve
- Restores proper line rise
- Drop-in Zip Valve™ parts install quickly and easily
- Hardcoat anodized aluminum valve combats premature wear
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.
Contents
- Valve
- Sleeve
- End Plug
Product Videos
Custom Field
Requires Tooling? No
Transmission Model(s) U151E, U151F, U250E
