U151E Pump 1999, remanufactured and ready to install. Fits the U151E. Ships fast from the USA.
This page is for the owner or shop with a V6 Toyota or Lexus five-speed that is slow to grab gear, slips once warm, or has a pump whine at idle. It is a remanufactured oil pump assembly listed for the U151E and U151F, with a new pump bushing, new front seal and new O-ring already installed, so it goes in ready to bolt up instead of needing a bench rebuild. The listing describes it as the no-crescent style and as a fit for six-cylinder Toyota applications.
The pump is listed under a 1999-up range that covers Toyota's U-series front-drive pumps as a family. No 1999 model actually used a U151E: the five-speed V6 transaxle arrived in the early 2000s. Use the fitment section below, not the year in the title, to decide if it fits your vehicle.
The torque converter hub drives the inner gear of the pump, which turns inside an outer driven gear in the pump body. As the teeth separate on the suction side and close on the outlet side, fluid is pushed into the primary regulator, where the SLT line pressure solenoid sets working pressure for every clutch and brake. The stator shaft on the pump cover also carries the converter feed and the oil to the clutch drum through its sealing rings. When the gears, body pocket or bushing wear, pressure leaks back to suction before it ever reaches the valve body, and that shows up worst at idle and when the fluid is hot and thin.
Gauge line pressure at idle and stall, hot and cold, and compare against factory spec using our line pressure testing guide. Low pressure with a good SLT points at the pump. Our Aisin slipping under load guide covers the other causes on this family. With the pump out, Toyota's U151F manual gives wear limits: body clearance 0.17 mm max, tip clearance 0.15 mm max, side clearance 0.05 mm max, and a bushing bore of 38.188 mm max.
The U151E (front drive) and U151F (all-wheel drive) were used behind V6 engines in models including the 2003-2006 Camry V6, Camry Solara V6, 2004-2010 Sienna, 2004-2013 Highlander V6, Lexus RX 330 and ES 330, 2005-2007 Avalon and 2006-2012 RAV4 V6. Later Camry V6, Avalon and ES 350 moved to the six-speed U660E, which this pump does not fit. The listing notes that U-series pumps came in two styles, so compare the gear set and casting on your old pump against the photo, and send us your year and VIN if you want us to check. See all parts in the Aisin and Toyota transmission collection.
Check the converter hub for grooves first; read converter hub and pump bushing wear before you install a pump with a fresh bushing on a scored hub. Fit two new drum sealing rings on the stator shaft, lube the O-ring and lip seal, and draw the pump in evenly. Toyota specifies 9.8 N-m on the pump cover bolts when reassembling the pump. Fill with Toyota WS fluid such as our genuine Toyota WS 6-quart case and set the level hot. If the clutches were cooked by low pressure, the U151E overhaul kit covers the soft parts. Reset the transmission learned values after the job.
| Fits | U151E 1999 |
| Part type | Pump |
| Condition | Remanufactured |
| Brand | OEM |
| Reference | U151 |
| Ships | From the USA |
| Warranty | 1-year |
Doing this repair right usually means replacing these at the same time. Same transmission, ships together.
No 1999 model used the U151E. The 1999 comes from the listing's 1999-up family range. It fits U151E and U151F V6 applications from the early 2000s on; match your casting or send us your VIN.
It is a remanufactured pump assembly with a new pump bushing, new front seal and new O-ring installed.
The listing names the U250 alongside the U151 and warns that two pump styles exist. Compare the gear set and casting on your old pump to the photo, or send us your year and VIN before ordering.
Toyota WS (World Standard) ATF. Do not use Dexron or Type T-IV. Check the level hot using the overflow plug procedure.
Clearing the transmission learned values with a scan tool after the repair lets the TCM adapt to the restored line pressure and gives the best shift feel.
