09D

The TR60-SN (09D according to VAG) is an innovative 6-speed automatic transmission designed by Aisin and released in 2003 for RWD Porsche Cayenne equipped with a 4-liter engine.

This transmission was designed simultaneously with the first 6-speed automatic transmission for FWD cars - TF60-SN and was tested since 2001 on a 2-liter Altezza

This transmission was supposed to be a leader in the world of luxury brands such as Porsche, Audi, Lexus and become a competitor to the new 6-speed ZF6HP transmission. Audi use 09D for Q7 SUVs with diesel engines from 3 to 4.2 liters.

EAW TR-60SN has been successfully used since 2007 in powerful (over 4.6l) RWD and AWD Lexus and Land Cruiser SUVs. There are several sub-modifications of this transmission for its torque class, differing in planetary gears, quantity of clutches and steel discs, the size of some of the units and parts. It was replaced by the 8-speed transmission TR80-SD.

This transmission was designed by the Aisin to become "invincible", like all of its RWD automatic transmission. But each automaker customized its TCM (transmission computer) in "democratic" fashion, enabling drivers to use its capacities to the fullest extent.