The 211 machines were purchased from a US firm following an informal agreement between the neighbouring nations' leaders in mid-April.
Last week, several hospitals in Mexico City said they were turning patients away because of a lack of equipment.
President Trump has previously called the US "the king of ventilators".
In early April, President Trump said that the US would have 110,000 ventilators by the end of June.
He also said at the time that some of the machines could go to countries that were "desperate" for the machines.