A goal on the stroke of half-time from Chilean international striker Humberto Suazo was enough to give Monterrey their first title in the championship for North and Central American and Caribbean clubs.
Mexican clubs have won the last six CONCACAF titles while the United States have not had a victor since L.A. Galaxy in 2000.
Jason Kreis's team had not lost at Rio Tinto stadium since May 16th 2009, but they paid the price for a lack of sharpness in attack, with strikers Fabian Espindola and Alvaro Saborio both well below-par.
The hosts came out with all guns blazing in the second half but their usually thoughtful and creative midfield approach was sacrificed for a more direct style which Monterrey's defence had little trouble dealing with.
There were some late scrambled attempts from the U.S. team, with their Argentine playmaker Javier Morales blasting wide in the final moments, but the Mexicans held firm to complete their country's 27th triumph since the competition began in 1962.
