Switch listings are split by position and by function — driver side, passenger side, with or without memory, with or without illumination — because those variants do not interchange even when the housing is the same shape. The position qualifier is part of the product name, not a footnote.
Relays and fuses are listed by the OEM number moulded into the body. A relay that clicks is not necessarily a relay that works: the contact rating and the suppression circuit have to match the original, so compare the number on the old part with the number on the listing before ordering.
