Terrako Components

are items in. Terrako Components are parts of the broken Terrako, which are scattered around Hyrule after to the clash with Calamity Ganon.

In-game, Terrako Components have an appearance similar to the upper portion of a leg of a Guardian, being described as "with a special shape", likely exclusive to Terrako. An Ancient Gear and two NaN Ancient Screws are also shown within the in-game sprite.

Overview
Terrako Components are Key Items and they can not be sold to merchants nor shop owners. There are a total of 50 Terrako Components scattered around Hyrule, with all the quests and challenges unlocked after the scenario, The Future of Hyrule. They are either a prize earned at the first-completion of a Challenge or a prize of completing a related quest.

Terrako Componenets are used to complete the mission Terrako's Return, in which, after collecting all 50 pieces, Terrako will become playable.