The Toyota U341F 4-speed automatic transmission was built at the company’s plant from 2000 to 2009 and was installed on the Matrix, Allion and Corolla Fielder together with the 1.8-liter 1ZZ-FE engine. On the Pontiac Vibe crossover this gearbox was fitted as the Aisin AW73-41LS.
Specifications
| Type | automatic transmission |
| Number of gears | 4 |
| Type of drive | all wheel |
| Engine volume, l | up to 1.8 |
| Torque output, Nm | up to 175 |
| Recommended oil | Toyota ATF Type T-IV since 2006 Toyota ATF WS |
| Oil capacity, liter | 6.4 |
| Partial replacement, liter | 2.7 |
| Maintenance | every 60 000 km |
| Gearbox lifespan, km | ~300 000 km |
| Weight, kg | 75 |
Gear ratios Toyota U341F
Using a 2005 Toyota Matrix with a 1.8 liter engine as an example:
| Main | 4.237 |
| 1st | 2.847 |
| 2nd | 1.552 |
| 3rd | 1.000 |
| 4th | 0.700 |
| Reverse | 2.343 |
Using
The transmission was installed on:
- Toyota Allion 1 (T240) in 2001 – 2007;
- Toyota Corolla Allex 1 (E120) in 2002 – 2006;
- Toyota Corolla Fielder 1 (E120) in 2001 – 2006;
- Toyota Corolla Spacio 2 (E120) in 2001 – 2007;
- Toyota Corolla Runx 1 (E120) in 2002 – 2006;
- Toyota Matrix 1 (E130) in 2002 – 2006;
- Toyota Opa 1 (XT10) in 2000 – 2005;
- Toyota Premio 1 (T240) in 2001 – 2007;
- Toyota Voltz 1 (E130) in 2002 – 2004;
- Toyota Wish 1 (AE10) in 2003 – 2009;
- Pontiac Vibe 1 (E130) in 2002 – 2008.
Disadvantages of the Toyota U341F gearbox
- This is a fairly reliable gearbox and problems occur only at high mileage;
- Under active driving the lockup clutch wears out and this debris clogs the solenoids;
- And if you drive for a long time with a worn clutch, the oil pump bushing will be destroyed;
- The weak point of all U-series automatic transmissions is the Teflon rings in the rear cover;
- After 200,000 km they often wear out and the oil pressure in the system drops;
- This gearbox also dislikes frequent hard starts, as the planetary gearsets may not hold up.
