What is the lifespan of a Toyota 4AT transmission?

1 Answers
LeJoy
07/29/25 10:09pm
With proper usage and maintenance, a 4AT transmission can last approximately 600,000 kilometers. Definition of AT transmission: An AT transmission consists entirely of planetary gears, which are responsible for gear shifting and torque conversion. AT transmissions offer smoother shifting compared to dual-clutch transmissions and can handle higher torque than CVT transmissions. Transmission fluid replacement interval: Although many manufacturers claim that the transmission is maintenance-free for life, the recommended transmission fluid replacement interval is between 60,000 to 80,000 kilometers (varies by vehicle model). After the initial maintenance, it is advisable to replace the transmission fluid every 40,000 to 60,000 kilometers to prevent fluid degradation.
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