Williams Racing have announced they will use Mercedes gearboxes from 2022 in an expansion of their technical partnership.
Mercedes have powered Williams since the hybrid era began in 2014 and from 2022, the Formula One team will also use gearboxes as well as 'related hydraulic components'.
Williams had historically made other parts in-house, but said the increased partnership with Mercedes will enable them to implement a 'more efficient design and manufacturing process' over the long-term as the team focuses resources 'more effectively in other performance areas'.
Other chassis parts will continue to be designed and manufactured internally.
Williams team principal Simon Roberts said in a statement: “I’m pleased to see our great relationship with Mercedes extend beyond the supply of engines.
“Williams is an independent team, but Formula One is always evolving, and as a team we must be agile to react to the current climate in order to put the team in the best position to be competitive on track.
“This long-term agreement with Mercedes is a positive step and forms part of our strategic objectives for the future whilst we will still retain our design and manufacturing capabilities in-house.”
Mercedes team principal Toto Wolff also welcomed the expansion of their technical partnership.
“For Williams, it makes sense to acquire the integrated powertrain after running our power units since 2014 and for our team, it makes sense in terms of economies of scale to supply another team under the new rules,” Wolff said.
“This is a project we have been discussing with Williams for some time and I am glad we have been able to bring this extension to fruition.”