Heavy Duty Trucking Logo
MenuMENU
SearchSEARCH

Cummins Names New CTO

Jonathan Wood will succeed Cummins CTO Jim Fier, effective April 1.

January 4, 2023
Cummins Names New CTO

Jonathan Wood (right) will succeed Jim Fier as CTO effective April 1. Fier will retire at the end of March after a 36-year career with Cummins.

Photo: Cummins

2 min to read


Cummins’ Vice President and Chief Technical Officer Jim Fier will retire after a 36-year career with the company. Jonathan Wood, currently VP of new power engineering, will succeed Fier as CTO effective April 1.

Fier began his long Cummins career as a service engineer, then worked in current product support, and new product introduction, gaining broad technical knowledge and leadership experience, while accelerating the development and launch of the company’s engine platforms and innovations, Cummins officials said in a press release.

Ad Loading...

Serving as CTO since 2019, Fier has lead simulation-based product development allowed Cummins to meet stringent emissions requirements, and he and his global teams have led Cummins’ key initiatives to address the global climate crisis, including the company’s zero emissions strategy.

Cummins Names Jonathan Wood CTO

“Given the significance of this role, we have been working for quite some time on a thoughtful and planned transition,” said Cummins President and CEO Jennifer Rumsey.

Rumsey added: “[Woods’] technical leadership experiences in our components and new power businesses make him uniquely qualified for this role as we continue to advance our strategy and develop innovative technologies at the right time for our customers and enhance our technical workforce and capabilities.”

Ad Loading...

Wood, who is based in the United Kingdom, joined Cummins in 1994 as part of the Cummins Turbo Technologies (CTT) Aftermarket and Service team. His more recent roles include: executive director of engineering for turbo technologies at CTT, executive director of engineering for emission solutions, and VP of components engineering.

During his time with CTT, Wood was based in Wuxi, China, while leading the Asia Engineering Organization, and also served as the Europe ABO Technical Leader from 2017 to 2022.

“His global perspective, collaborative approach, keen technical skills, and customer experience are a tremendous asset to Cummins,” Cummins officials said. “Throughout his career, Wood has developed global engineering teams and championed diversity and inclusion across the technical organization.”

More Equipment

Kenworth T680.
Equipmentby News/Media ReleaseMay 27, 2026

Kenworth Names Peter Ahrens General Manager

Leadership changes at Kenworth take effect July 1 as the OEM promotes two longtime Paccar executives to key management roles.

Read More →
White Hino Le electric tractor on show floor
Equipmentby News/Media ReleaseMay 26, 2026

Hino Adds Electric Class 6/7 Truck

Hino says the Le Series is an important step in the company's efforts to reduce environmental impact and support its customers’ sustainability goals.

Read More →
Big standing "ACTExpo" sign in convention center lobby
Equipmentby Deborah LockridgeMay 26, 2026

ACT Expo 2026: Highlights in Photos

The 2026 Advanced Clean Transportation Expo featured a broad range of commercial vehicle technologies, from EVs to autonomous trucks to the latest diesel and alternative-fuel engines.

Read More →
Ad Loading...
Red Hendrickson e-axle at ACT Expo booth
Equipmentby News/Media ReleaseMay 22, 2026

Hendrickson Debuts Electraax E-Axle for Medium-Duty Trucks

Developed with Driventic, Hendrickson's new integrated e-axle is designed to improve efficiency, reduce weight, and extend range in Class 6-7 EV applications.

Read More →
Peterbilt Freedom 250 Special Edition Model 589.
Equipmentby News/Media ReleaseMay 21, 2026

Peterbilt Unveils Freedom 250 Special Edition Model 589

Peterbilt’s just-announced limited-run patriotic Model 579 tractor celebrates America’s 250th birthday with custom styling and premium features.

Read More →
Closeup of engine in Mack truck
Equipmentby Deborah LockridgeMay 13, 2026

Mack Unveils EPA 2027-Compliant MP13 Engine With More Power, Better Fuel Economy

Along with unveiling its EPA 2027-compliant MP13 engine, Mack outlined powertrain changes across its Class 6-8 lineup, including new Cummins-based X10 engines.

Read More →
Ad Loading...
Kodiak Driver-equipped Roehl Transport tractor-trailer.
Equipmentby News/Media ReleaseMay 11, 2026

Kodiak and Roehl Transport Launch Autonomous Route Between Dallas and Houston

Kodiak AI and Roehl Transport have begun autonomous freight operations on a regular Dallas-Houston route, marking another step toward Kodiak’s planned driverless launch by the end of 2026.

Read More →
Peterbilt-Kodiak autonomous truck.
Equipmentby Deborah LockridgeMay 8, 2026

Autonomous Trucks at ACT Expo 2026

Autonomous trucks commanded a lot of attention from attendees at ACT Expo this year. Check out this photo gallery.

Read More →
Crowd at Volvo booth at ACT Expo
Equipmentby Deborah LockridgeMay 8, 2026

How Volvo’s New D13 Engine Meets EPA 2027 Emissions Without Sacrificing Power or Fuel Efficiency

Volvo says advances in combustion and aftertreatment helped its new EPA 2027 D13 engine avoid the fuel-economy penalties many once expected from tighter NOx emissions limits.

Read More →
Ad Loading...
Fleet Advantage Truck Life Cycle Data Index chart comparing operating costs, fuel savings and total cost of ownership for Class 8 truck model years 2022 through 2028.
Equipmentby News/Media ReleaseMay 7, 2026

Fleet Advantage TLDI Highlights Rising Costs of Aging Fleet Equipment Amid Higher Diesel Prices

Fleet Advantage’s latest Truck Life Cycle Data Index shows fleets operating older Class 8 trucks could face significantly higher costs as diesel prices rise, while newer 2028 equipment may deliver savings of more than $12,000 per truck annually.

Read More →