Catalyst Powertrain Provides Complete Service for Your Allison Bus "B" Series Transmission

Catalyst Powertrain is an Allison Transmission authorized service center. We provide reman units, parts, repair, and maintenance for all Allison On Highway Transmissions.
About the “B” Series
Allison’s Bus Series™ automatic transmissions help put your vehicles and your business on schedule for superior operating economies, improved vehicle performance, safer driver operation and enhanced passenger comfort. B Series transmissions available from 230HP to 550HP.
About the "B" Series
Allison’s Bus Series™ automatic transmissions help put your vehicles and your business on schedule for superior operating economies, improved vehicle performance, safer driver operation and enhanced passenger comfort. B Series transmissions available from 230HP to 550HP.

Features of the Allison B Series Transmission
- Fully automatic up to 6 forward speeds
Close ratio gearing
Retarder option
Advanced electronic controls: Shift Energy Management, High-density start-stop calibrations, Prognostics, FuelSense® 2.0, xFE
Torque converter for smooth vehicle launch from a stop
Lockup clutch for efficient power transfer once the vehicle is moving
Applications of the Allison B Series
- Revenue-generating/FTA Transit Bus Applications
Transit Bus
Intercity Bus (less than 53,000 lbs GVW)
Tour Coach
Shuttle Bus over 33,000 lbs GVW
