Eaton Cummins Automated Transmission Technologies has introduced its new Endurant 12-speed automated transmission for heavy-duty applications.

Endurant is the first automated heavy-duty transmission as part of the newly-formed joint venture between Eaton and Cummins.

“We are excited to introduce our customers to this game-changing transmission,” said Eaton Cummins Automated Transmission Technologies general manager, Scott Davis.

“Fleets will find Endurant has been engineered from the ground up with features that protect your investment and make it easy to maintain.

“With a communication system between the engine and transmission software, Endurant promises to deliver performance and reliability, fuel efficiency, reduced maintenance and driver comfort features.”

For his part, Eaton Vehicle Group VP, Gerard DeVito added: “It is important to note Endurant is not an automated variant that has been adapted from a manual transmission.

“Endurant was designed, engineered and created from a clean sheet to be an automated transmission not simply an update to an AMT. This allowed us to optimise the transmission’s weight, dimensions and features.”

The making of Endurant included input from Customer Councils, Driving Councils and Service Councils. These groups helped identify features which are most important and useful to best accomplish their day-to-day jobs.

Reliability is key for linehaul fleets, so a component vehicle testing programme put Endurant through extreme conditions at the Eaton Proving Grounds in Marshall, Michigan, in the high-heat of Death Valley, California and minus 40-degree temperatures in northern Minnesota.

The testing regimen resulted in more than 2m equivalent field test miles.

As with all automated transmissions from the Eaton Cummins joint venture, Endurant is available with IntelliConnect, a telematics capable system providing near real-time monitoring of vehicle fault codes and prioritising critical events.

The primary objective of IntelliConnect is to increase a fleet’s uptime by reducing unplanned downtime and providing quicker repair diagnostics through remote communication with a vehicle’s transmission.

Endurant will be paired with the Cummins X15 Efficiency Series engine beginning in October for Peterbilt and Kenworth trucks.