First Look at the 2026 Mack Granite | ConExpo

TL;DR

The 2026 Mack Granite debuts at ConExpo with a wider cab, 540hp engine, advanced safety systems, and full production starting January 2027.

Key Points

• 1.The all-new cab is significantly larger and more comfortable. It is 9 inches wider at the shoulder, offers 10% more interior room, and features new seats with heating, cooling, and massage functions.
• 2.Command Steer removes 85% of steering effort for drivers. It uses an electronic motor on the steering gear to add approximately 9 lbs of torque assist, similar to EPAS, reducing fatigue on rough job sites.
• 3.The MP13 engine is the strongest 13L in the industry. It produces 540 horsepower and 1,950 lb-ft of torque, meeting upcoming 2027 emissions regulations (0.0035 NOx standard); a lighter Cummins X10 option offering 450hp is also available.
• 4.Safety systems include airbags, radar, and automatic 911 calling. Standard driver and side curtain airbags protect against rollovers, front radar enables automatic emergency braking and adaptive cruise, and side radars warn of blind-spot hazards.
• 5.The M Drive AMT transmission offers up to a 32:1 creeper gear ratio. A new 'creep mode' automatically engages the electronically controlled clutch when the driver lifts off the brake, enabling ultra-slow movement ideal for concrete curb pouring.
• 6.The Mack Keystone tractor shares the Granite's platform but is built for semi-truck applications. It replaces the Pinnacle, offers a 64-inch stand-up sleeper, is 6% more fuel-efficient than its predecessor, and uses Mack's proprietary rear axle for a fully integrated powertrain.
• 7.Full production for both the Granite and Keystone begins January 2027 in Macungie, Pennsylvania. Pre-production trucks are already in customer hands for testing, and both trucks are built on Mack's broader new conventional platform alongside the Pioneer and new Anthem.