U660E Pump, remanufactured and ready to install. Fits the U660E. Ships fast from the USA.
If your V6 Camry, Avalon, Venza, Highlander, Lexus ES350 or RX350 takes a long pause before it bites into Drive or Reverse, slips in every gear once it is hot, or makes a whine that rises and falls with engine speed, the front pump in the U660E six-speed is a prime suspect. This is a remanufactured U660E oil pump assembly. The product photo shows the pump body and gear housing with its center bushing, a new front seal, sealing rings and a set of mounting bolts, so the parts you normally need at the pump come together.
The U660E is the Aisin six-speed front-drive transaxle that Toyota put behind its V6 engines, starting in the 2007 Camry and ES350 and spreading to the Avalon and Venza. ATSG's technical information describes a gear train with two driving clutches (C1 and C2), three brake clutches (B1, B2, B3), one one-way clutch, a Ravigneaux planetary set and an underdrive planetary. Every one of those clutches is applied by fluid, and the pump is where that fluid pressure starts. The converter hub turns the pump gears whenever the engine runs, and the primary regulator valve in the valve body trims that flow down to line pressure. Toyota then uses pulse-width-modulated solenoids to meter line pressure, clutch apply and converter lockup. The control side can only work with what the pump supplies, so a pump with worn gear clearances or a scored bushing starves all of it at once.
Start with a scan of every module, not just the transmission. Gears Magazine points out that the U660E's transmission control module bolts directly to the case and plugs into the solenoid connector, and those modules have their own failure pattern that can set U0402 and circuit performance codes. Rule that out first. Check the fluid level hot through the overflow plug, because a low level produces exactly the same delayed engagement as a weak pump. Then put a pressure gauge on the line pressure tap; ATSG's pressure tap chart shows line pressure, cooler, rear lube and separate C1 and C2 clutch taps on the case. Low pressure in every range points at the pump or the regulator side of the valve body. Since valve body bore wear is common on this unit, read our U660E and U760E problems guide on the primary regulator and solenoid modulator valves before you condemn the pump.
This listing covers the U660E, the front-wheel-drive version used behind the V6. The listing data cross-references Toyota pump assembly numbers 35410-33250, 35410-33260, 35410-73010 and 35410-0R010. Toyota revised parts over the production run, so compare the casting, bolt holes and stator support length with the pump you remove, or send us your year, model and VIN and we will check it. All-wheel-drive V6 models use the U660F; it has its own U660F pump listing. The four-cylinder U760E is a different unit. Browse every part for this family on the U660E collection page.
If line pressure was low long enough to cook the valve body, a remanufactured U660E valve body or the U660E shift kit should go in at the same time.
| Fits | U660E |
| Part type | Pump |
| Condition | Remanufactured |
| Brand | OEM |
| Reference | U660F |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Front-wheel-drive V6 Toyota and Lexus models with the U660E six-speed, such as the Camry, Avalon, Venza, Highlander, ES350 and RX350. All-wheel-drive versions use the U660F, and four-cylinder models use the U760E.
The photo shows the pump assembly with its bushing, a front seal, sealing rings and bolts. Compare the picture with your old pump, and contact us before ordering if you need contents confirmed.
Yes, but on high-mileage U660E units the case bearing bore and converter input spline area can also fail and cause a no-move. Check those before replacing the pump alone.
Toyota WS automatic transmission fluid. The wrong fluid can cause shudder, flaring shifts and pressure solenoid codes. Set the level hot through the overflow plug at the Toyota temperature window.
Yes. The TCM memory survives a battery disconnect, so use a tool that can run Toyota's ECT memory reset, then road test from cold to hot so shift and lockup timing relearn.
