H 40/50 EPtm Series

Allison Transmission’s H 40/50 EPTM Series is a unique two-mode parallel hybrid transmission that has been proven to be a dependable and efficient system for buses and coaches. From reduced emissions, quieter operation and fuel economy improvements (as compared to diesel-powered buses), the H 40/50 EPTM Series provides reduced brake maintenance costs and fast, smooth acceleration. The H 40/50 EPTM Series is equipped with regenerative braking, a system that converts the vehicle’s kinetic energy to stored electric energy when decelerating or stopping, and has ratings up to a maximum 246 kW (330 hp). In full production since 2003 and now operating in thousands of buses, it has proven up to 25% fuel saving, depending on the duty cycle.

Ratings and Specs

Allison offers several model choices, giving you ultimate control over selecting the features and power you need for your fleet. See the grid below to compare all of our transmission models and find the one that best meets your business needs.

H 40/50 EP
H 40/50 EP Series
List of applicable vocational applications
Transit + City Bus Coach

Need help choosing the right transmission?

We design, engineer and manufacture our transmissions specifically for a range of vocational applications. If you need help deciding which transmission will fit your vehicle, or if you have questions, click below to contact an Allison representative.

Contact a representative
Choose a vocation