Zacatepec 1948

The club dates back to the early 1920s and was formed by local farmers and co-op members that operated the local sugar mill.

It was not until 1948 when Rodrigo Ampudia del Valle along with the sugar mill's coop membership, including the mill's superintendent and its chief chemist Gustavo de la Parra, founded Club Social y Deportivo Zacatepec who from its foundation sought to play in the Primera División de México. A few years later, the club would go on to win important things in the national level and international level.

It was in 1951 when future manager Ignacio Trelles took over the club. In the 1951 Segunda División final they won, earning a promotion to the Primera División de México, taking over the spot left by Club San Sebastián de León who would never again return to the top division.

The club finished runner-up in 1953. In 1955, the club won its first league title, becoming the first club in the state of Morelos to achieve that, which made the locals celebrate in the streets thing that had no been seen before. The following year the club won the 1956–57 Copa México against León for the first time.

The club won the 1957 league title just ahead of Toluca once ageing under the care of Ignacio Trelles who would go on to win titles with other clubs in the league becoming one of the best managers in the league history. The following tournament the club finished third, 4 points behind runner-up León and 6 points behind Guadalajara who would go on to win the next 6 out of 7 titles from 1958 to 1965. The club would also go on to lose the 1957–58 Copa México to León.

In the following years the club struggled, finishing 10th in 1959–60 and 6th in 1960–61, and it was finally in 1961 when the club played its worst tournament, finishing last and being relegated to the Segunda División de México.

That club from the 1950s was one of the most successful in the club's history. The club played some importation international friendlies in the 1950s against some of the best clubs from around the world. The club defeated Nacional who had won the Campeón Mundial de Clubes and would also go on to beat Manchester United in a friendly game.

The club started the 1960s playing the top division but after a bad league tournament in 1961 the club was relegated to the Segunda División de México where after one year in the lower league the club was promoted after winning the 1962–63 tournament and was once again in the Primera División de México, taking over the spot left by Jaibos Tampico Madero. The club struggle in its first years back and it was in their third year when the club once again finished last in the competition and was relegated to the Segunda División de México. The club allied in the second division from 1965 to 1970 when the club won its second Segunda División title and earning the promotion along with Puebla who had one a promotional play-off series with four other clubs that year in order to increase the numbers of clubs in the league.

The club started the 1970s once again in the first division; in the 1970–71 tournament the club finished tied for second in Group Corsairs 5 points behind the group leader and league runner-up Toluca. In the 1971–72 tournament the club finished fifth in Group A 15 points behind leader and league champion Cruz Azul. In the 1972–73 tournament, the club just barely avoided relegation and finished four points ahead of Pachuca. The club struggled the following year finish in eighth in group 8 Group A once again avoiding relegation. In the 1974–75 tournament, the club's struggles continued once again finishing in the bottom five. In the 1975–76 tournament, the club once again avoided relegation finishing six points ahead of Atlante, who was relegated. It was finally in the 1976–77 tournament when the club could not avoid relegation after having a bad year, finishing with 27 points—fewest in the league.

It didn't take long for the club to return to the main stage after winning the 1977–78 Segunda División title and its third in its history. The club had a good year in the 1978–79 tournament qualifying to the play-off tournament, a short tournament where they finished last. In the 1979–80 tournament, club once again qualify after finishing first in group 4 with 44 points, but would again have a bad play-off tournament. And so the 1970s were over having the club struggles at the beginning of the decade and finishing with back-to-back play-off berths.

The club started the 1980s in the Primera División. In the 1980–81 tournament the club qualified to the playoff stage with 42 points by means of 17 wins, 8 draws, and 13 defeats. In the play-offs the club played out of group 1 where they finished second behind Cruz Azul who would go on to lose the final against the winner of group 2 Pumas UNAM. In the 1981–82 tournament, the club once again qualified this time playing a series which they lost to Deportivo Neza 2–3 after two matches. In the 1982–83 tournament, the club tied for the worst record in the league with Atlético Morelia both only earning 30 points on 38 games. A relegation match was held where after two matches Atlético Morelia managed to keep the category winning the series after a penalty shootout. The club would play for the fifth time in the Segunda División, but it would only take them one year to return winning the 1983-84 Segunda División championship. After their 5th promotion the club would lose the category again in the 1984–85 tournament, being the last time the club played in the Primera División.