2026 MACK PR64T44 MID-ROOF SLEEPER built to work hard and keep drivers comfortable. Powered by a 515 HP Mack MP13 paired with a Mack mDRIVE 13-speed automated transmission for smooth, efficient performance. Equipped with disc brakes, full differential lock, and a Holland AirSlide fifth wheel for confident handling and versatility. Long-haul ready with 100-gallon LHS and 75-gallon RHS fuel tanks. Driver-focused features include collision avoidance, adaptive cruise control, and a Preferred Interior Level for added comfort and productivity. A strong, reliable spec ideal for demanding fleets and owner-operators alike.