4000 Series™
Allison Transmission’s 4000 Series™ is designed to make heavy-duty vehicles operate smoothly and efficiently. Allison’s 4000 Series is built for productivity and reliability to deliver both performance and fuel efficiency.
Features:
- Close or wide ratio gearing
- Up to seven speeds
- 2nd reverse
- Power Take-off available
- Integral Output retarder
- Advanced electronic controls