In the event of loss of or damage to any part(s) of an insured machine or other manufactured item consisting of more than one part caused by a peril covered by this insurance, the sum recoverable shall not exceed the cost of replacement or repair of such part(s) plus labour for (re)fitting and carriage costs. Duty incurred in the provision of replacement or repaired part(s) shall also be recoverable provided that the full duty payable on the insured machine or manufactured item is included in the amount insured.