Is this a capacitor or a varistor? How can I figure out specifics?
This site does allow questions on identification of components but we need to see the markings. You may need to remove it from the board and clean it up.  Alternatively you could search for a service manual which has the schematic and then you just need the reference printed on the board to which component this is.
You’d have to be very fortunate to have someone on here that happens to know that board from their experience and therefore knows what that component is and we don’t like to guess here.