The men's 4 × 400 metres relay competition of the athletics events at the 1979 Pan American Games took place on 13 and 14 July at the Estadio Sixto Escobar. The defending Pan American Games champion was the United States team.
The men's 4 × 400 metres relay competition of the athletics events at the 1979 Pan American Games took place on 13 and 14 July at the Estadio Sixto Escobar. The defending Pan American Games champion was the United States team. (en)
A prova do revezamento 4x400 m masculino nos Jogos Pan-Americanos de 1979 foi realizada em San Juan, Porto Rico. (pt)
The men's 4 × 400 metres relay competition of the athletics events at the 1979 Pan American Games took place on 13 and 14 July at the Estadio Sixto Escobar. The defending Pan American Games champion was the United States team. (en)
A prova do revezamento 4x400 m masculino nos Jogos Pan-Americanos de 1979 foi realizada em San Juan, Porto Rico. (pt)