component vs component part

component and component part both are nouns.

Word	Noun	Adjective	Verb	Adverb
component	Yes	No	No	No
component part	Yes	No	No	No

As nouns, component and component part are synonyms defined as:

component and component part: something determined in relation to something that includes it

Other synonyms of component include constituent, part, portion.

component (noun)	component part (noun)
an artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system	something determined in relation to something that includes it
an abstract part of something
something determined in relation to something that includes it