A torque reaction arrangement (50) for twin press-roll pulp washers comprises a first torque reaction arm (10), a second torque reaction arm (20), a first link (19), and a second link (29). The links are provided between the ends of a respective torque reaction arm and a point close to the mounting to a respective stator of the other torque reaction arm. The torque reaction arms are rigidly mounted to a respective stator of a respective press roll motor. A twin press-roll pulp washer with such a torque reaction arrangement is also disclosed.