The 1992 Pepsi 400 was the 15th stock car race of the 1992 NASCAR Winston Cup Series season and the 34th iteration of the event.

The race was held on Saturday, July 4, 1992, before an audience of 80,000 in Daytona Beach, Florida at Daytona International Speedway, a 2.5 miles (4.0 km) permanent triangular-shaped superspeedway.

At race's end, Morgan–McClure Motorsports driver Ernie Irvan would manage to dominate the majority of the race to take his fifth career NASCAR Winston Cup Series victory and his second victory of the season.

The standard track at Daytona International Speedway is a four-turn superspeedway that is 2.5 miles (4.0 km) long.

Sterling Marlin, driving for Junior Johnson & Associates, would win the pole, setting a time of 47.527 and an average speed of 189.366 miles per hour (304.755 km/h) in the first round.