Alto has introduced a new friction and steel module for ZF 6HP series transmissions. The module works with ZF 6HP19/X/A (model years 2004 and on) and ZF 6HP21/X (model years 2007 and on) for ZF, Audi, BMW and Volkswagen vehicles.
Alto says that the product (part no. 143751X) features G3 frictions and Kolene steels.