For 1989 Cogan returned with the Machinists Union driving the No. 11 Schaefer Beer/Playboy Fashions March 88C-Cosworth DFX. Another frustrating season saw Cogan finish 14th in points with a best finish of 8th at the Champion Spark Plug 300K at Laguna Seca Raceway. The only 'highlight' of Cogan's season was a major crash at the Indianapolis 500. At the end of the third lap, Cogan spun in turn four and hit the entrance to the pit lane. The car broke in half, rebounded and slammed into the end of the pit wall before finally sliding to a stop on its side in the pit lane. To everyone's surprise, Cogan immediately climbed from his destroyed car unharmed.