is it possible to provide a single word for describing an item that would need to be replaced over time [closed]
Solution 1:
You might try "consumable", which is defined by oxforddictionaries.com as "a commodity that is intended to be used up relatively quickly". That site offers this as a usage example:
...[this brand's] printers benefit from years of heritage and the relatively easy availability of consumables.
Solution 2:
In some contexts, and as your question implies, these would be called wear items. Auto headlamps and hoses, etc, are usually excluded from warranty because they are expected to eventually wear out.
In a different context you have consumables, not that these are expected to fail, only to be replenished in the course of use. Copier toner is a consumable.