Hybrid-ready 8-speeds coming to Kokomo

Stellantis is finally making an eight-speed automatic that can be used in hybrid-electric and gasoline-powered vehicles; at the moment, the “4xe” hybrids use ZF-built transmissions. The changes, which affect three plants near or in Kokomo, Indiana—one casting plant and two transmission plants— will cost around $229 million.

2022 Ram 1500 Limited 10th Anniversary Edition

The eight-speed transmissions Chrysler builds are modified to work with Chrysler’s tooling and processes, and sometimes to expand the transmission’s capacity for truck use.

In addition to better fuel economy and greater responsiveness, the hybrid designs will help meet changing emissions rules. Stellantis has declared a desire to stop buying emissions credits from potential-rival Tesla.

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The new transmissions will be used in all four of the company’s traditional American brands (Chrysler, Dodge, Jeep, and Ram).

Stellantis Head of Powertrain Operations Brad Clark wrote, “It is a versatile transmission that can be adapted for a variety of applications, allowing us the flexibility to adjust our production as consumer demand for electrified vehicles grows over the next decade.”

Different versions of the transmission will share many parts, including the gear train and mechanical pump, while allowing for unique parts, including the electric motor, torque converter, and electronics, for different uses.

The former Indiana Transmission Plant II is still going through a $400 million conversion to making the 2-liter GME turbo four-cylinder engine, with production expected this year; it is likely to replace or at least supplement the Pentastar V6 in a wide range of vehicles once it hits full production.

David Zatz started what was to become the world’s biggest, most comprehensive Mopar site in 1994 as he pursued a career in organizational research and change. After a chemo-induced break, during which he wrote car books covering Vipers, minivans, and Jeeps, he returned with some friends to create StellPower.com, which is intended to end up as an enduring partnership. Contact him at (973) 925-6058 or check out the new junkyard/slant six book he edited.

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