The ZF 6HP19 is a model of a six-speed automatic transmission, engineered and manufactured by ZF Friedrichshafen AG, specifically for use in vehicles with longitudinal engines. It was developed as an offshoot of the original 6HP26, but was modified to be less robust for applications that were less demanding. Consequently, the 6HP19 has a torque rating of 400 newton-metres (295 lbf⋅ft).
This transmission model has been used in both rear-wheel drive (RWD) and all-wheel drive (AWD) BMW vehicles, as well as front-wheel drive (FWD) and AWD Audi models (where it is known as the 6HP19A). It can be paired with engines that have a capacity of up to 3.5 liters. The 6HP19 was designed in conjunction with the ZF6HP26 as a “light” variant.
The 6HP19 employs a Lepelletier epicyclic/planetary gearset, which allows for more gear ratios with significantly fewer parts. This results in the 6HP19 being lighter than its five-speed predecessors, the 5HP series. It also has the ability to lock-up the torque converter in all six forward gears, and to completely disengage it when the vehicle is stationary, significantly reducing the fuel efficiency gap between automatic and manual transmissions.
The final 6HP19 automatic transmission was manufactured at the Saarbrücken plant in March 2014, after a total of 7,050,232 units had been produced. However, production of the 6HP19 continued at the ZF plant in Shanghai for the Chinese market.