


In-pan filter and pan gasket for the Toyota/Lexus U660E six-speed automatic, fitting the 3.5L V6 Camry, Avalon, Highlander, Sienna, ES350 and RX350.
If your 3.5L V6 Camry, Avalon, Highlander, Sienna, Venza, Lexus ES350 or RX350 has started shuddering around 25 to 50 mph, engages Drive with a pause, or shifts harsh once it is warm, the first job on the list is a pan drop with a new filter and the correct fluid. This kit is the in-pan filter plus the oil-pan gasket for the Toyota/Aisin U660E six-speed transaxle that sits behind the 2GR V6. It crosses to OE filter numbers 35330-33050 and 35330-48020 (also listed as 0440356), and it gives you everything needed to seal the case back up after the filter swap.
The U660E is a transaxle, so the gear train, valve body and the final drive all draw from one shared sump. The filter hangs below the valve body and every drop of fluid the pump sends to the linear solenoids, the clutch apply circuits and the torque converter passes through it first. The U660E runs its converter clutch in controlled slip across a wide speed range, which means the lockup circuit depends on steady pressure and clean fluid with its friction additives intact. A filter loaded with clutch material and bushing wear restricts the pump inlet, line pressure sags under load, and the slip-controlled lockup is the first thing to complain.
Not every one of these is a filter problem. Gears magazine traces many U660E harsh 4-5 shifts and slow Reverse engagement to worn valve body bores, and a converter with a glazed clutch will keep shuddering on any fluid. A filter and fluid service is the cheap first step that rules those out or confirms them.
Reproduce the complaint, then check the fluid condition and level the Toyota way. There is no dipstick. Level is set at the overflow plug with fluid temperature held between 185 and 194 degrees F, read off the scan tool PID A/T Oil Temperature 1, with the car level on the lift. Our U660E and U760E problems and service guide walks through the Manual-3 shudder test and the order to work the fixes in: fluid first, then valve body, then calibration, then the converter. If the pan is full of friction material, you are past a service and into a U660E master rebuild kit.
The listing fits the U660E (and AWD U660F) in the Toyota 2008-2018 Avalon 3.5L, 2007-2017 Camry 3.5L V6, 2014-2016 Highlander 3.5L, 2011-2016 Sienna 3.5L, 2009-2015 Venza, Lexus 2007-2018 ES350 and 2010-2015 RX350 3.5L. The listing also names the 2011 Sienna 2.7L. Toyota used several U-series filter shapes across these years, so match your old filter or the OE number before ordering. If you are unsure, send us your year and VIN and we will check it. The four-cylinder cars run the U760E and take a different kit; see the U760E filter kit 044-0398. Everything else for this unit is in our U660E parts collection.
If shift complaints stay after a correct service, the next likely fix is valve body work, such as a U660E shift kit that addresses the worn bores. Our U660E fluid type and capacity guide has the full 6.57 liter capacity figure and plug torque values.
| Includes | Transmission filter and oil-pan gasket |
| Fits | Toyota / Lexus U660E (U660F) six-speed automatic transaxle |
| Applications | Camry, Avalon, Highlander, Sienna, Venza, ES350, RX350 |
| Years | 2007-2018 depending on model (verify OE number) |
| Pan bolts | 18 |
| Filter OE | 35330-33050, 3533033050, 0440356, 35330-48020 |
| Fluid | Use Toyota WS (World Standard) ATF on refill |
| Ships from | USA |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.

No. Four-cylinder Camry and RAV4 models use the U760E, which takes a different filter. This kit is for the 3.5L V6 U660E. Match the OE number 35330-33050 or 35330-48020, or send us your year and VIN.
Toyota Genuine ATF WS, part number 00289-ATFWS. Toyota's level-adjustment bulletin lists only WS for this transaxle, and a generic multi-vehicle fluid is a common cause of converter shudder.
With the car level, warm the fluid to 185 to 194 degrees F using a scan tool that reads A/T Oil Temperature 1, then remove the overflow plug and let excess drain until it slows to a trickle. Reinstall the plug at the specified torque.
Often it helps, because old fluid and a restricted filter are the most common causes. If the shudder disappears in Manual 3 and stays after a correct WS service and level-set, look at valve body wear or the converter next.
No relearn is required for a filter swap. Many techs reset the transmission adaptive values with a scan tool after a fluid change on a high-mileage unit so the TCM relearns shift timing on fresh fluid.