Toyota 4Runner Automatic Transmission Oil Pumps

The transmission oil pump is a part that can be found only in automatic-equipped vehicles. That’s because the AT, in its conventional form, is a hydromechanical system that largely relies on the hydraulic fluid (known as the ATF) during its operation. Besides, the internal architecture of automatic gearboxes is far more complicated than that of manual transmissions, and the delivery of lubricant (another function of the ATF) to all of the remote points is an additional duty of a pump. The one fitted to your Toyota 4Runner is composed of two gears sitting on the transmission input shaft and moving the fluid by means of displacement. It is a particularly simple and thus reliable scheme that rarely causes any problems. However, if it does, then the repair job has to be urgent.

Without the oil pump maintaining the pressure inside the system, the transmission will not only malfunction, but also experience excessive wear resulting in far more expensive repairs than the replacement of the impaired pump. And when it comes to oil pump replacements for the vehicle this strong and tough, no quality compromise is acceptable. We think so. And that’s why we offer exceptionally reliable products in our Toyota 4Runner automatic transmission oil pumps & components collection.