In short, a mod needs to go on the matching armor piece from the same model, but armor pieces can go on any frame with any mix of other pieces.

For each piece on the frame, you can also craft any mods for which you have the prerequisite perks and materials. There, you can attach any mods you already have, provided that there is a matching piece on the frame. To attach mods to the pieces on the frame, you'll need to bring that frame to a power armor station. These pieces cannot be crafted, but instead must be bought or found. If you have a Mk III leg mod, you'll need an X01 leg. For each mod, the frame will need the associated X01 piece. In order to use these, you'll need a frame. To change the mods on a piece of armor, you need to use a power armor crafting station. A T51 blood cleanser cannot go on a T60 torso. Mods can only be attached to pieces from the same model. These can be swapped out at-will at a power armor station, or, if you're currently wearing the frame, in your pip-boy's apparel page.Įach piece can have mods added, like a VATS overlay for the helmet or a blood cleanser for the torso. You could have T60 arms with T51 legs and an X01 head and chest, for example. A frame can have any mix of power armor pieces from any type of model on it.