U660E Solenoid Kit, remanufactured and ready to install. Fits the U660E. Ships fast from the USA.
This is a remanufactured U660E solenoid kit for the V6 Toyota and Lexus six-speed, the transaxle behind the V6 in the Lexus ES350 and Camry from 2007, the Avalon from 2008 and the Venza from 2009. As pictured, it comes as an assembly: the solenoids are already mounted on the internal wiring harness that runs to the case connector, so you are replacing the pressure-control solenoids and the wiring that feeds them in one piece. Buyers usually land here chasing erratic shifts, a solenoid code, or a shudder that a fluid change did not fix.
Every shift in the U660E is hydraulic in execution but electronic in command. The transmission computer fires linear solenoids to ramp clutch pressure on and off, one to set line pressure and one for lockup, and the valve body carries out the result. On the U660E the transmission control module plugs straight into the solenoid case connector and bolts to the unit, so the harness inside this kit is the last link between that module and the solenoids. A heat-hardened harness or a corroded pin gives the same symptoms as a failed solenoid.
Because the U660E module is mounted on the transmission, separate the module from the solenoids first. GEARS Magazine notes these modules are developing their own failure patterns and are plug-and-play for testing, but a replacement module must be initialized with the unit compensation code using a scan tool. Voltage-drop test the module power and grounds under load before blaming anything inside the case.
Next, check the fluid level hot, at 185-194°F, and confirm it is genuine WS fluid; wrong or worn fluid alone causes solenoid performance codes and converter shudder. Then consider the valve body: wear in the solenoid modulator and lockup control bores leaks pressure and looks like a weak solenoid. Our U660E and U760E problems guide covers the Manual 3 shudder test and the bore-wear checks, and a bi-directional tool such as the XTOOL IP500 Toyota scan tool lets you command individual solenoids and run the reset afterward.
This listing is for the U660E, with the Lexus ES350 as its reference application. It does not carry a year range, and the U660E was revised during its run, so match before you order: compare the harness routing, the connector body at the case and the number of solenoids with the photo, or send us your year and VIN. The four-cylinder U760E uses a different kit. Year-specific U660E kits, including the 2011-2016 U660E solenoid kit, are listed on the U660E/U760E collection page.
If the valve body bores are worn, a complete U660E valve body for the Camry is often the more durable repair.
| Fits | U660E |
| Part type | Solenoid Kit |
| Condition | Remanufactured |
| Brand | OEM |
| Reference | ES350 |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
It is the V6 six-speed. It started in the 2007 Lexus ES350 and Camry, then the 2008 Avalon and 2009 Venza, and the family also covers V6 Highlander, Sienna and RX models. Confirm with your transmission ID or VIN.
Yes. As pictured, the solenoids come mounted on the internal harness that runs to the transmission case connector.
On the U660E the module bolts to the transmission and plugs into the solenoid connector, and it has its own failure patterns. Test its power and grounds under load, or swap a known-good module, which must be initialized with the compensation code.
It is remanufactured, which means the assembly has been restored and tested rather than built from all-new components.
Toyota WS ATF, part number 00289-ATFWS. Total capacity is about 6.94 US quarts with the differential, but set the actual level hot using the overflow plug rather than by quantity.
