The Toyota U150E 5-speed automatic transmission was produced in Japan from 2001 to 2004 and was installed on the third generation of the Windom together with the 3.0-liter 1MZ-FE engine. On the related Lexus ES300 sedan this transmission is known under the index Aisin AW95-50LS.
Specifications
| Type | automatic transmission |
| Number of gears | 5 |
| Type of drive | front |
| Engine volume, l | up to 3.0 |
| Torque output, Nm | up to 300 |
| Recommended oil | Toyota ATF Type T-IV |
| Oil capacity, liter | 8.8 |
| Partial replacement, liter | 3.5 |
| Maintenance | every 60 000 km |
| Gearbox lifespan, km | ~250 000 km |
| Weight, kg | 102 |
Gear ratios Toyota U150E
Using a 2002 Toyota Windom with a 3.0 liter engine as an example:
| Main | 3.478 |
| 1st | 3.938 |
| 2nd | 2.194 |
| 3rd | 1.411 |
| 4th | 0.973 |
| 5th | 0.703 |
| Reverse | 3.141 |
Using
The transmission was installed on:
- Lexus ES300 4 (XV30) in 2001 – 2003 (as AW95-50LS);
- Toyota Windom 3 (XV30) in 2001 – 2004.
Disadvantages of the Toyota U150E gearbox
- This is a very rare gearbox and finding a donor unit can be quite difficult;
- Otherwise all its main problems are typical of almost any automatic transmissions in the U-series;
- Under excessively active driving the valve body gets clogged with clutch wear debris;
- The planetary gearset may also fail to withstand frequent hard starts;
- The weak point of all automatic transmissions in the series is the support in the rear cover of the transmission;
- As its Teflon rings wear, the oil pressure in the system starts to drop;
- The clutch packs then simply start to burn from the excessively low pressure.
Frequently asked questions about the Toyota U150E
What type of transmission is the Toyota U150E?
The Toyota U150E is a 5-speed automatic transmission for front-wheel drive cars.
How much torque can the Toyota U150E handle?
The Toyota U150E is designed for torque up to 300 Nm and engines up to 3.0 liters.
How much oil does the Toyota U150E take and which one?
The Toyota U150E takes 8.8 liters of oil (3.5 liters for a partial change). Recommended oil: Toyota ATF Type T-IV.
How often should the Toyota U150E be serviced?
Recommended service interval: every 60 000 km.
How long does the Toyota U150E last?
With proper maintenance, the Toyota U150E typically lasts about 250 000 km.
How much does the Toyota U150E weigh?
The Toyota U150E weighs about 102 kg.
What are the gear ratios of the Toyota U150E?
Using a 2002 Toyota Windom with a 3.0 liter engine as an example: final drive 3.478, 1st 3.938, 2nd 2.194, 3rd 1.411, 4th 0.973, 5th 0.703, reverse 3.141.
What cars was the Toyota U150E installed on?
Lexus ES300 4 (XV30) in 2001 – 2003 (as AW95-50LS); Toyota Windom 3 (XV30) in 2001 – 2004.
What are the common problems of the Toyota U150E?
This is a very rare gearbox and finding a donor unit can be quite difficult. Otherwise all its main problems are typical of almost any automatic transmissions in the U-series. All known problems.





