U250E Pump 1999, used and ready to install. Fits the U250E. Ships fast from the USA.
A Camry, RAV4, Highlander, Sienna, Avalon or Lexus ES or RX that takes too long to go into gear, slips when it is hot, or whines louder as the engine speeds up may have a worn front oil pump in its five-speed Aisin transaxle. This listing is a checked, good used Toyota oil pump assembly. It is the 1999-up design with no crescent and gears that are .460 in thick. It is catalogued for the V6 U151E and U151F, and it also fits some U250E transaxles. You receive the actual pump shown in the photo, cleaned and inspected after being removed from a transmission.
The pump is bolted to the front of the transaxle case, directly behind the torque converter. The converter hub drives the inner gear, so the pump turns at engine speed whenever the engine runs. On this version, the inner and outer gears mesh with no crescent between them. The pump body also carries the stator shaft, which holds the converter stator and has the sealing ring lands that send oil into the clutch drums. All the oil in the transaxle comes from this pump: line pressure for every clutch and brake, oil for the converter and lockup clutch, cooler flow and lubrication. The SLT pressure control solenoid and the valve body can only regulate the oil the pump supplies. When the gear clearances or the body bushing wear, idle output drops, and the symptoms show up in every gear at once.
Check the fluid level the Toyota way: at the specified temperature, using the overflow plug on sealed units. Then put a gauge on line pressure in Drive and Reverse, at idle and at stall. If pressure is low in every range and comes up with RPM, the pump is the likely cause. If only one range is low, look for a clutch or seal leak instead. Our Aisin slipping under load guide and harsh and delayed shift guide cover the solenoid and valve body problems you should rule out first. A loose or grooved converter hub is covered in converter hub and pump bushing wear.
The title says 1999, but that date comes from the pump design. The U250E itself appeared later, in four-cylinder Camry, Solara, Corolla XRS and Matrix models. The catalogue lists this pump as possibly fitting Toyota Avalon, Avensis, Camry, Camry Solara, Corolla XRS, Harrier, Highlander, Matrix, RAV4 and Sienna, Lexus ES 330, RX 300, RX 330 and RX 350, and Pontiac Vibe. It notes that only some U250E units take it. Toyota used more than one pump in these transaxles. Before ordering, compare your old pump with ours: confirm it has no crescent, measure the gear thickness (.460 in on this pump), and match the casting and bolt pattern. If you are unsure, send us your year, make, model and engine size. All of our Toyota and Aisin parts are on the Aisin parts page.
Fit a new front seal and pump body O-ring before installing. Lube the gears with Toyota WS fluid and install both gears with their marked sides facing the same way they came out. Replace the sealing rings on the stator shaft. Old rings that ride in fresh lands can leak clutch apply oil. Draw the pump in evenly and torque the bolts in a crisscross pattern to the factory spec. Inspect the converter hub before sliding the converter in. Refill with Toyota WS and set the level hot. If the clutches are burned, pair the pump with the U250E overhaul kit and use genuine Toyota WS fluid for the refill.
| Fits | U250E 1999 |
| Part type | Pump |
| Condition | Used |
| Brand | OEM |
| Reference | U151E |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
Possibly. The pump is catalogued for the U151E/U151F and for some U250E units, and Toyota used more than one pump in these transaxles. Compare it with your old pump before ordering. Confirm it has no crescent, that the gears are .460 in thick, and that the casting matches. If you are not sure, send us your year, model and engine size.
Neither. It is a good used original Toyota pump that was removed from a transmission, cleaned and inspected. Install a new front seal, O-ring and stator shaft sealing rings when you fit it.
Toyota ATF WS. Prime the pump gears with WS during assembly, then set the level hot at the overflow plug using Toyota's fill procedure.
Replace the front seal, the pump O-ring, and the sealing rings on the stator shaft. If the clutches are worn, use a full overhaul kit. Inspect the converter hub too, because a grooved hub will wear a new bushing and seal.
Usually not. A worn pump drops pressure in every range. Slipping in just one gear points more often to that clutch, its seals or a solenoid. Use a line pressure test to tell them apart.
