Five hundred pesos coins
Only one type of $500 coin was struck for circuation. This was introduced by a decree of Miguel de la Madrid of 19 December 1985, which also changed the specifications for the $1, $10 and $50 coinsDiario Oficial, 9 January 1986.
Madero
KM-529 1987 $500
This was composed of 75% copper and 25% nickel, had a diameter of 28.6 mm and a weight of 12.7 g. Mintage was
| Year | Mintage |
| 1986 | 20,000,000 |
| 1987 | 180,000,000 |
| 1988 | 230,000,000 |
| 1989 | 40,000,000 |
| 1992 | 20,000,000 |