Aston Martin DB9 (G6S)

6 speed sequential gearbox conversion kit


Gearbox kit designed to convert the standard Aston Martin DB9 transmission to sequential shift dog-change.


  • Torque rating for endurance events is 800Nm (
  • The gearbox kit includes 6 forward ratios and the selection mechanism, with provision for either a pneumatic shifter or a mechanical shift rod.
  • Case hardened nickel chrome steel is used for all gears and shafts.
  • Optional profile ground gears are available for increased efficiency and durability, with an extensive range of ratios to select from.
  • A gear position sensor is supplied for interfacing with an electronic dash display. Alternatively a stand-alone gear indicator display is available for cars not fitted with an electronic dash.
  • Heat treated and nitrided, high tensile steel is used for the selector forks.