The six-cylinder D468 was rated at 90 horsepower at 1,800 rpm and could run all day on $5 worth of fuel. The company introduced a second diesel truck engine in 1940, but both were discontinued during World War II. Caterpillar would not enter the diesel truck engine business again until 1960.
“The diesel truck engine revolutionized the trucking industry–providing improved fuel economy and torque compared to gasoline engines of the day. Today, diesel powered trucks deliver over 85 percent of consumer goods and are a critical component of modern supply chain management. Without trucks, our country’s economy grinds to a halt.”
Eric Arnold, Yancey Power Systems
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War Years and Beyond 1939 - 1947