Competitors will compare the engine strength at the flywheel whereas Mack’s competitive advantage comes into play with the differentials and transmissions. Comparing a 400 hp CAT to a 400 hp Mack is like comparing cats to dogs. They are workhorses in industrial applications meaning most Mack enthusiasts measure “power to the ground” over high horsepower capabilities of other diesel engines. Mack engines are known for their per foot pound of torque output. The engine is 6 cylinder, heavy duty rated and in use both for on-highway and off highway industrial applications. The same year Mack also introduced the CH Series for on-highway heavy duty applications. The Mack E7 Engine replaced the longstanding Mack e6 model and was produced for over 20 years. The e7 mack engine was first conceptualized in 1988 by the Mack Corporation engineers and introduced in 1989. The history of the engine is steeped in technology, tradition and good old American gumption one would expect from Mack. The Mack e7 engine is the backbone of the almighty Mack Bulldog fleet. Mack E-7 History and Technical Information
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