This is/was common in European vehicles - but is NOT universally true.
The cap and rotor, yes. The distributor itself, no. Both alternators and distributors CAN be very specific to a very limited range of vehicles.
And I've been a (Canadian interprovincial)licenced auto mechanic since
1971 and was service manager for a Toyota dealer for 10 of those years.can make some young squirts overconfident.