https://www.theverge.com/2018/7/16/17577478/apple-replace-macbook-pro-keyboards-third-gen-components

The new, third-generation MacBook Pro keyboards are definitely quieter, but they won’t be used to swap out the faulty ones from older MacBooks, reports MacRumors. In a statement, Apple says the third-gen components are “exclusive” to 2018 MacBook Pros, so if you plan to take your laptop in for a repair, don’t expect the latest hardware — unless you buy an entirely new computer.

Last month, Apple unveiled a service program for the malfunctioning MacBook keyboards after determining that “a small percentage of the keyboards in certain MacBook and MacBook Pro models” might have keys that are “sticky” and don’t respond consistently.