ZMD Motors plans EV retrofit to electrify Ram 5500 Work Trucks

The Detroit startup aims to bring battery-electric power to medium-duty fleets with innovative Ram 5500 conversions.

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A rendering of a Ram 5500 Work Truck retrofitted with ZMD Motors' electrification system.
A rendering of a Ram 5500 Work Truck retrofitted with ZMD Motors' electrification system.
ZMD Motors

What you need to know:

  • ZMD Motors, a Detroit startup, is building a battery-electric medium-duty work truck on the Ram 5500 chassis
  • Founded by former GM executive Dave Stenson, it focuses on electric retrofits for Class 4–6 chassis-cab trucks
  • Electrification systems will be installed on new chassis for vocational fleets like utilities and municipal vehicles
  • The $23B medium-duty commercial EV market grows despite challenges faced by Bollinger, Nikola, and Lion Electric

A newly formed company in Detroit has officially begun preliminary development of a battery-electric, medium-duty work truck built on the Ram 5500 chassis.

Sound intriguing? We certainly think so. 

Founded in early 2025 by Dave Stenson—a former General Motors executive who spent nearly three decades leading engineering teams and vehicle development programs—ZMD Motors is developing an electric retrofit solution for Class 4–6 pickup-style chassis-cab trucks, beginning with the Ram 5500 platform. 

Per Automotive News, the company is currently in a startup phase and plans to install its proprietary electrification systems into newly produced chassis at a dedicated facility after they leave the OEM's assembly line, targeting medium-duty segments where fleets have often had limited battery-electric options.

ZMD also develops integrated electrification systems aimed at transforming newly built internal combustion chassis into zero-emission work trucks. The company's initial efforts are focused on pickup-derived chassis-cab platforms widely used in vocational roles, including utility operations, municipal fleets, and service vehicles.

Speaking to AN, Stenson stated that "Nobody has brought a pickup cab-based, medium-duty EV to market. Whether it's diesel or gas, you go out to California, and they don't want either. They want electric where it fits their work needs."

Also per AN: 

Stenson's ultimate goal is to fill an untapped niche: the electrified Class 5 work truck category, to which the Ford F-550, Ram 5500 and Silverado 5500 belong. It's been untapped for a reason, though. Automakers focused on light-duty, high-volume EVs first. Heavy-duty electrification poses unique challenges—range limitation being high on the list—with even less certain ROI prospects than light-duty electrics.

Commercial EV bankruptcies and successes 

ZMD Motors may be onto something. However, the success rate for commercial EV startups has not been rosy recently. A few examples include Michigan-based Bollinger Motors, along with Nikola and electric school bus manufacturer Lion Electric, all of which have faced significant financial challenges.

In our 2025 end-of-year analysis, we wrote that battery-electric vehicles may be facing headwinds, but the segment is far from disappearing. The medium-duty commercial BEV market—currently estimated at roughly $23 billion—continues to advance as development and adoption gradually expand.

A couple of recent market highlights are the recently completed merger between Workhorse and Motiv Electric Trucks, and Harbinger Motors' unveiling earlier this week of its HC Series Cab at Work Truck Week 2026.

Jay Traugott has covered the automotive and transportation sector for over a decade and now serves as Senior Editor for Clean Trucking. He holds a drifting license and has driven on some of the world's best race tracks, including the Nurburgring and Spa. He lives near Boulder, Colorado and spends his free time snowboarding and backcountry hiking. He can be reached at [email protected].

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