More than 1,000 Ford employees will go on strike on Wednesday, the Unite union has said.
Administrative workers in Dunton, Stratford, Dagenham, Daventry and Halewood will walk out for 24 hours over a long-running dispute about pay and contract changes.
The carmaker has offered many office workers a one-off payment for 2024, rather than giving them a permanent pay ris.
Performance-related pay will be imposed from next year for all staff.
Despite absence being less than 2% changes to sick pay policy and the Unite collective bargaining agreement are also being sought, the union said.
A 24 hour walkout will be staged on 30 October after industrial action short of strikes began on 22 August.
Ford has been contacted for comment.
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