The original division was created in 1960 and was part of the American Football League. The Dallas Texans were one of the original four teams along with the Broncos, Raiders, and Chargers.
Denver, Oakland, and Los Angeles are tied for most division titles with 15, but the Broncos have had the most postseason success out of the bunch, with eight AFC conference championships in comparison to five for the Raiders, two for the chiefs, and one for the Chargers.
Seven Super Bowl titles have been won by franchises in this division. The Broncos and Raiders have three while the Chiefs have one ring. The Chiefs, Chargers, and Raiders each won an AFL championship while in the AFC West, however the Chiefs were still the Dallas Texans and the Chargers were located in San Diego during their playoff runs.
The Cincinnati Bengals, Tampa Bay Buccaneers, and Seattle Seahawks franchises have all been a part of the AFC West. The Bengals played two seasons in the division while in the AFL. Tampa Bay participated for one lone season at the start of their franchise in 1976. Seattle spent 25 seasons with the group from 1977 to the NFL division realignment in 2002.