Believing our customers simply deserve the best, we design and build fully automatic transmissions that deliver premium performance with unrivaled reliability and durability. Our transmissions can be found at work in cities and rural areas all around the world in a wide variety of applications. From refuse and distribution to mining and school buses — if the job needs to get done, customers count on Allison. From construction to distribution to transit to off highway applications — Allison fully automatic transmissions are designed and engineered to make you more productive, no matter your vocation. Introducing a new series of fully integrated electric axles from Allison Transmission. Learn more.

Find an Allison Transmission Service Center Near You


We're Your Allison Transmission Partner
The series and similar and series is a line of automatic transmissions for on-road trucks. All are 5 or 6-speed electronically controlled units and are manufactured by Allison Transmission in Indianapolis, Indiana as well as in Baltimore, Maryland. A new "Generation 4" was introduced in that added a 6th gear at the very top of the ratio ladder, making it a double- overdrive. For the model year, manual gear selection was introduced. This feature gives the driver greater control over the transmission, enhancing operation when engine braking or less frequent shifting is desired. From Wikipedia, the free encyclopedia. This article does not cite any sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. Categories : General Motors transmissions.
Navigation menu
Williams, we are a proud Allison Transmission distributor and service provider—and we're known for understanding the products inside and out. With top-notch service centers, factory trained technicians, and knowledgeable support staff, we'll help you get more out of your transmissions and vehicles. Need transmission repair or service? In the market for a new transmission?
Allison Transmission is an American manufacturer of commercial duty automatic transmissions and hybrid propulsion systems. Allison products are specified by over vehicle manufacturers and are used in many market sectors including bus, refuse, fire, construction, distribution, military, and specialty applications. Allison began in when James A. Allison , along with three business partners, helped fund and build the Indianapolis Motor Speedway.