The Detroit Diesel 71-series engine was built from the mid-1930s through the mid-1990s in configurations ranging from an inline-four-cylinder all the way up to a V24.

Detroit's electronically controlled Series 60 diesel engine was introduced during the first quarter of 1987. What was unique about this mill was that it was the brand's first ever clean-sheet design.

Check out this 1.5 Billion Dollar engine featuring the Detroit Diesel DD15 with 1,850 lb-ft at 1,100 rpm torque inside Diesel Power Magazine.