Mack Calendar 2025. The mack trucks 2025 calendar contest is now open. Starting today, any entry submitted before april.

Mack trucks has revealed the winners of the 2025 mack trucks calendar contest, showcasing twelve standout trucks, each representing a month of the year. Twelve mack trucks will have the spotlight in 2025 for a month apiece in the very popular calendar that showcases the brand’s customers in the u.s.