U660E Solenoid Kit 2011-2016, remanufactured and ready to install. Fits the U660E. Ships fast from the USA.
This remanufactured solenoid kit is for the U660E six-speed in 2011-2016 V6 Toyota and Lexus models, the front-drive transaxle that GEARS Magazine traces to the V6 Camry and Lexus ES350, the Avalon and the Venza, and that Toyota also used in other V6 models of these years. Owners land here after a shift solenoid code, a transmission that suddenly holds one gear, or shifts that bang on one day and flare the next. Because it is remanufactured and tested before it ships, you replace the electrical side of the valve body at once instead of buying and installing one solenoid at a time.
The U660E has no throttle cable or governor; every shift is commanded electrically. The ECM reads vehicle speed, throttle and fluid temperature, then fires the solenoids bolted to the valve body. On/off shift solenoids move the shift valves, while linear solenoids meter the pressure that applies each clutch, the line pressure, and the torque converter lockup clutch. Toyota runs the lockup clutch in a partial-apply strategy it calls flex lockup, so the lockup solenoid is working constantly at light throttle, not just switching on at cruise.
That design leaves very little margin. A linear solenoid that sticks slightly or a coil whose resistance has drifted changes the clutch pressure the ECM thinks it is delivering, and the adaptive learning tries to compensate until it runs out of room.
Scan every module, not just the transmission, and record freeze frame data. Toyota's Check Mode on a capable scan tool makes the computer set codes on the first detection, which speeds up intermittent diagnosis. Then rule out the two common impostors on these units. First, fluid: GEARS Magazine notes that the wrong or worn-out fluid in a U660E causes shudder, flares and solenoid performance codes on its own, so the fluid must be genuine WS at the right level. Second, the valve body: Sonnax documents wear of the solenoid modulator valve bore that floods the SL, SLT and SLU solenoids with excess pressure and sets solenoid codes even when the solenoids are fine. Our U660E and U760E problems guide walks through that sequence. An electrical code that follows the harness rather than the solenoid points to the connector or wiring.
This kit is listed for the U660E in 2011-2016 model years. Toyota made running changes to this transaxle, so the safest match is the solenoid connectors and bolt pattern on your valve body or the part numbers stamped on your existing solenoids; if in doubt, send us your year and VIN before ordering. It is not the kit for the four-cylinder U760E, and all-wheel-drive versions are designated U660F. For earlier and later years, see the 2007-2018 U660E solenoid kit and the 2018-2020 kit, or browse everything for this transmission on the U660E collection page.
For fill amounts and the service schedule, see our U660E fluid type and capacity guide. If the valve body bores are worn, solenoids alone will not cure it; a replacement U660-series valve body is the fix in that case.
| Fits | U660E 2011-2016 |
| Part type | Solenoid Kit |
| Condition | Remanufactured |
| Brand | OEM |
| Reference | U660 |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
The U660E is the V6 six-speed front-drive transaxle. GEARS Magazine dates it to the 2007 Camry and Lexus ES350, then the 2008 Avalon and 2009 Venza, and Toyota used it in other V6 models as well. Confirm your exact year and VIN against this kit's 2011-2016 listing.
A single electrical code can be fixed with one solenoid, but on a high-mileage unit the others have the same hours and wear. Replacing the set at once avoids a second pan drop and gives the adaptive learning a consistent starting point.
Toyota WS, part number 00289-ATFWS, or a fluid that states it meets the Toyota WS specification. Do not use Dexron or a generic multi-vehicle fluid; it can cause shudder and solenoid performance codes by itself.
Yes. Clear codes, reset the transmission adaptive values with a scan tool, and drive through every gear under light and moderate throttle so the computer relearns shift pressures. Shifts can feel firm for the first drives.
Check the wiring harness and connectors, then the valve body. Worn solenoid modulator and clutch control valve bores are well documented on this family and will keep setting codes no matter how good the solenoids are.
