Toyota 4Runner Automatic Transmission Bands & Clutches

Bands and clutches are friction devices that actuate or hold planetary gearsets in automatic transmissions. These devices are utilized to smoothen the power and torque transfer from the gearsets. Automatic transmission bands and clutches can lock certain parts of the planetary gearsets while allowing for other parts to rotate thus enabling torque transmission and gear reductions/overdrive ratios. Transmission bands are pushed by servos and designed as stopping and holding devices. Clutches are actuated by hydraulic fluid that enters their pistons and can hold or drive individual members of the gearset.

Multiple disc clutch packs have sets of driving and driven plates. Both types of discs are made from high-quality steel, but one of them is covered with friction material. Clutches that are meant to operate in the transmission fluid are called “wet clutches.” The friction surface can have grooves that allow transmission fluid to escape when the clutch is engaged. If you’ve noticed leak spots on your driveway and that your SUV starts suddenly lose power, it is time to check your automatic transmission. Our website can offer you a considerable range of Toyota 4Runner automatic transmission bands & clutches produced by some of the most well-known manufacturers in the industry.