2025 Mack MD642 Chassis. Built for power, reliability, and compliance, this CARB and EPA-certified chassis is ready to meet your business needs.Cummins ISB6.7 with 300 HP for strong, dependable performance. Allison 2500 RDS-P 6-speed automatic for smooth, efficient operation. 5.29 rear axle ratio with full locking differential for enhanced traction and control. Full drum brake package for consistent stopping power. Heated and power-adjustable for superior visibility in all conditions. Practical bench passenger seat for added comfort.6 aluminum wheels built for durability. 255/70R22.5 Bridgestone tires for a smooth, reliable ride. And so much more! Call us today for more details and discover why the 2025 Mack MD642 Chassis is the ideal addition to your fleet.