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9-Speed

Ratings

The 9-Speed features nine forward ranges and three overdrive ranges. The 9-Speed offers ratings capability of up to 380 hp (283 kW), 900 lb-ft of torque (1,220 N·m) and GVW of 57,000 lbs. (25,855 kg). 

Planetary Gears

The 9-Speed has strong helical gears for reduced wear.

Transmission Control Module

The Transmission Control Module (TCM) is an onboard micro-computer that receives input for various vehicle systems to control automatic shift schedules.

Torque Converter

 Close RatioWide Ratio
Turbine Torque750 lb-ft750 lb-ft
1st Range Gear Ratio4.264.82
Output Torque Calculation3195 lb-ft3615 lb-ft
Axle Ratio4.534.53
Wheel Torque at Launch14,473 lb-ft16,367 lb-ft

 

Nine Speeds of Proven Propulsion

The 9-Speed is built on the tried and tested quality, reliability and durability of the Allison 2000 Series™ and engineered for the demands of commercial vehicles.

 

Industry Leading Propulsion Technology

Allison fully Automatic transmissions deliver premium performance, increase fuel economy and reduce total cost of ownership.

A photo of 6th Generation Control panel in an Allison transmission vehicle.
 
6th Gen Controls

Our next generation controls platform includes several advancements including enhanced technology, cybersecurity and functional safety.

A driver fuels up his truck.
 
Quantifiable Fuel Savings

FuelSense® 2.0 uses a unique set of software and electronic controls to deliver fuel savings of up to 6% without sacrificing the performance. 

A graphic render of an expanded view of the Allison transmission torque converter.
 
Fully Automatic Architecture

Allison transmissions are equipped with a torque converter instead of a dry clutch, eliminating the need for manual shifting and reducing vehicle downtime. 

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Driving Innovation Forward

The 9-Speed was not only designed to handle the unique performance challenges fleets face every trip, but also to address the evolving fuel economy and sustainability requirements of today and tomorrow. Learn more about its features.

9-Speed Applications

The Allison 9-Speed  transmission can be seen in a variety of vocations across the world. 
A photo of a red cement mixer truck in a construction work zone.

Construction

Allison fully automatic transmissions are built to improve productivity on the construction site so you can get the job done more efficiently.

Defense

Allison has a proven history of designing propulsion solutions for tracked and wheeled defense vehicles that are built to withstand tough conditions.
A yellow Volvo mining truck drives in the dirt around a quarry mining site.

Mining + Specialty

Allison transmissions perform in demanding environments and improve vehicle operation in tough terrain including gravel roads, mud and steep grades.
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Pickup + Delivery

Allison propulsion solutions provide an ideal combination of performance and fuel economy for your fleet’s pickup and delivery routes.
A photo of an RV driving on a road

RV + Motorhome

Allison transmissions deliver an easy and smooth driving experience so drivers can relax and enjoy the journey of traveling in a premium RV or motorhome.
A photo of an IndyGo bus with the Allison eGen Flex logo on it.

Transit + Coach Buses

Allison’s fully automatic transmissions and electric hybrid propulsion systems improve productivity and fuel economy of transit, coach and school buses.

Allison 9-Speed in Action

Allison Transmission Introduces New Fuel-Efficient 9-Speed Transmission in the Middle East

Read More

Contact Us

Connect with an Allison Authorized location near you for more information.