Mack Trucks are built to work. On the road or at the job-site, you need a truck you can trust. And you can count on Mack Trucks to get the job done every day. Mack Trucks are lighter and fuel-efficient, so they can do more. And they’ve got the power you need to take on tough jobs. Mack Trucks are built to last – every semi truck is born ready for the toughest road conditions and long haul challenges.