Mack Trucks
Keystone
Keystone (2026)
Introduced 2026
Image not yet documented.
About this generation
The Mack Keystone was introduced in 2026 as a new Class 8 vocational tractor designed for demanding regional-haul, construction and vocational applications. It builds on Mack's heavy-duty heritage with a modern aerodynamic cab, advanced driver-assistance technology, improved visibility and the latest Mack powertrain systems.
Key Features
- Class 8 vocational tractor
- Regional haul
- Construction applications
- Vocational applications
- Aerodynamic cab design
- Day cab and sleeper configurations
- Improved visibility
- Advanced driver-assistance systems
- Mack MP13 engine
- mDRIVE automated transmission
- Mack BodyLink technology
- Heavy-duty chassis
Technical Overview
- Production
- Introduced 2026
- Replaced
- Mack Pinnacle
- Succeeded by
- Current generation
Cab & Transmission
- Cab Types
- Day Cab
- Sleeper Cab
- Transmissions
- Mack mDRIVE automated manual transmission
Engines
1 engine