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What is the lifespan of the Aisin 4AT transmission?

2 Answers

SanSabrina

08/29/25 8:05am

The lifespan of the Aisin 4AT transmission can reach up to 600,000 kilometers as long as it is used and maintained correctly. Main functions: Change the transmission ratio, expand the range of torque and speed changes of the driving wheels to adapt to frequently changing driving conditions, while keeping the engine working under favorable conditions. Under the condition that the engine rotation direction remains unchanged, the car can only reverse; use neutral gear to interrupt power transmission, allowing the engine to start, shift gears, and facilitate gear shifting or power output. Working principle: The manual transmission mainly consists of gears and shafts, achieving speed and torque changes through different gear combinations; while the automatic transmission (AT) is composed of a torque converter, planetary gears, and a hydraulic control system, achieving speed and torque changes through hydraulic transmission and gear combinations.

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DeEden

09/11/25 5:33am

I've always been quite interested in the Aisin 4AT transmission, which typically lasts over 200,000 kilometers with its durable design. However, the actual mileage depends on your driving habits: frequent hard acceleration, fully loaded hill climbing, or off-road racing can accelerate wear, potentially reducing its lifespan to around 150,000 kilometers before needing repairs. I recommend changing the transmission fluid every 60,000 kilometers, along with inspecting the filter and oil pressure. Don't underestimate these maintenance tasks—they can significantly extend its service life. Climate also plays a crucial role; for example, in hot southern regions, excessive oil temperatures can hasten aging. If you notice delayed shifting or jerking, don't ignore it—visit a professional shop early. Investing in timely maintenance saves you from major repairs and keeps your transmission running longer.

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