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Eaton Cummins Automated Transmission Technologies Joint Venture Launches Innovative Endurant™ Transmission

On the heels of the successful collaboration with the SmartAdvantage™ Powertrain, Cummins and Eaton have formed a joint venture to further advance transmission technologies for commercial vehicles.  This joint venture combines Cummins engine expertise with Eaton’s advanced transmission technologies to deliver customer-driven solutions that set the bar for excellence across the globe.

This JV is already having an immediate impact, with the launch of an innovative new 12-speed automated transmission at the North American Commercial Vehicle Show (NACV).

The Endurant™ transmission is the lightest, most efficient transmission ever for heavy-duty Class 7 and 8 operations, weighing 105 lbs. less than competitive AMTs, yet pulling a maximum Gross Combined Vehicle Weight (GCVW) of up to 110,000 lbs.

The new design incorporates a sophisticated communications system between the engine and transmission, which enables industry-best performance, reliability and fuel efficiency while  reducing maintenance.

The Endurant was subjected to a total of more than two million equivalent field test miles at the Eaton Proving Grounds in Marshall, Michigan, high-heat exposure in Death Valley, California and minus 40-degree Fahrenheit operations in Northern Minnesota.

The Endurant transmission delivers the lowest cruise rpm and best overall ratios of any automated transmission designed to handle up to 1850 lb-ft of peak torque.

Extended maintenance intervals improve uptime and lower the total cost of ownership even further. Lube change intervals are set at 750,000 miles, the self-adjusting 430 mm clutch requires no grease and the Endurant transmission only uses 16 pints of oil — half that of competitive models.  A new smart prognostics feature provides clutch replacement notification to better plan maintenance scheduling and an innovative transmission fluid pressure sensor notifies drivers of low oil levels to provide burn-up warranty coverage.

It is equipped with IntelliConnect™, a telematics capable system that provides real-time remote monitoring of fault codes, with action plan notifications by technical experts.

The Endurant transmission handles a maximum engine rating of 510 hp and will initially be paired with the Cummins X15™ Efficiency Series engine.

It will carry a five-year/750,000 mile warranty on the transmission with a three-year/500,000 mile warranty on the clutch. Extended protection plans will be available as well. Customer support will be provided through the Cummins Care and Eaton Roadranger® networks.

The Endurant 12-speed automated transmission is just the first of many new transmissions in development as part of the Eaton Cummins joint venture. Medium-duty customers can look forward to a new powertrain featuring the Eaton® Procision® automatic transmission, which will be covered in an upcoming edition of SuccessLine.

The SmartAdvantage Powertrain featuring the X15 Efficiency Series engine and the Fuller Advantage® 10-speed automated manual transmission will continue to be offered at many OEMs. Specific details on this offering are available at smartadvantagepowertrain.com.

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