The 8-speed automatic transmission Toyota U881 or Aisin AWF8F35 has been assembled since 2015 and is installed only on the fourth generation Lexus RX350 with a 3.5-liter 2GR-FKS engine. There are two modifications: U881E for front-wheel drive cars, U881F for all-wheel drive.
This series includes: U880, U881.
Specifications
| Production years | since 2015 |
| Type | automatic transmission |
| Number of gears | 8 |
| Type of drive | front / all wheel |
| Engine volume, l | up to 3.5 |
| Torque output, Nm | up to 380 |
| Recommended oil | Aisin AW-2 |
| Oil capacity, liter | 7.2 |
| Replacing the oil | every 60,000 km |
| Replacing the filter | every 60,000 km |
| Gearbox lifespan, km | ~300 000 |
| Weight, kg | 95 |
Gear ratios Toyota U881
Using the example of a Lexus RX350 2018 with a 3.5 liter engine:
| Main | 3.329 |
| 1st | 5.250 |
| 2nd | 3.028 |
| 3rd | 1.950 |
| 4th | 1.456 |
| 5th | 1.220 |
| 6th | 1.000 |
| 7th | 0.808 |
| 8th | 0.673 |
| Reverse | 4.014 |
The transmission was installed on:
- Lexus RX350 4 (AL20) since 2015.
Disadvantages of the Toyota U881 gearbox
- The main problems of the predecessor U880 have already been fixed and this is a reliable gearbox.
- The main thing is to monitor the condition of the cooling system, all problems here are caused by overheating.
- High temperature reduces the life of Teflon rings and oil pressure drops.
- And then, due to low oil pressure in the system, the clutches in the packages begin to burn out.
- Even during active driving, the valve body quickly becomes clogged with friction wear products.
