1965 — GM Diesel became Detroit Diesel Engine Division. Then, five years later, General Motors consolidated the company with the closely allied transmission and gas turbine businesses of the Allison Division — forming the Detroit Diesel Allison Division.

1987 — The Series 60 — the four-cycle heavy-duty engine that would become the signature of Detroit Diesel — was introduced as the first production engine with integrated electronic controls as a standard feature. The Series 60 was developed to meet the demand for cleaner and more fuel-efficient, heavy-duty engines, and quickly become the most popular, heavy-duty diesel engine in the North American Class 8 truck market.

1988 — On Jan. 1, 1988, a joint venture between Penske Corp.and General Motors created Detroit Diesel, the successor to the heavy-duty diesel engine business of the Detroit Diesel Allison Division.

1993 — In October 1993, Detroit Diesel had grown in on-highway, heavy-duty market share to 33 percent from 3 percent only a few years earlier. The company also completed a successful initial public offering of common stock, becoming a publicly traded company listed on the New York Stock Exchange under the stock symbol “DDC.”

2000 — In October, DaimlerChrysler, a manufacturer of heavy-duty diesel truck engines, completed a tender offer for all outstanding shares of Detroit Diesel.

2005 — Detroit Diesel Corp. invested $350 million to refurbish and retool its plant for future business.

2007 — Detroit Diesel announces its new line-up of engines starting with the launch of the all-new DD15.

2010 — Detroit Diesel launched BlueTec emissions technology and the complete series of Detroit Diesel DD platform engines including the DD13, DD15, and DD16 engines.