Heavy Duty Trucking Logo
MenuMENU
SearchSEARCH

Cummins Tests Hydrogen Fueled Internal Combustion Engine 

Following the proof-of-concept testing, Cummins plans to evaluate the hydrogen-fueled internal combustion engine in a variety of on- and off-highway applications.

July 13, 2021
Cummins Tests Hydrogen Fueled Internal Combustion Engine 

Following the proof-of-concept testing, the company plans to evaluate the hydrogen-fueled internal combustion engine in a variety of on- and off-highway applications.

Photo: Cummins

1 min to read


Cummins began testing a hydrogen-fueled internal combustion engine.The proof-of-concept test is building on Cummins’ existing technology in gaseous-fuel applications and powertrain to create new a power solution.

“We are using all new engine platforms equipped with the latest technologies to improve power density, reduce friction and improve thermal efficiency, allowing us to avoid the typical performance limitations and efficiency compromises associated with converting diesel or natural gas engines over to hydrogen fuel,” said Srikanth Padmanabhan, president of Cummins’ engine segment, in a press release.

Ad Loading...

Padmanabhan says the company is “optimistic” about bringing the engine to market. Following the proof-of-concept testing, the company plans to evaluate the engine in a variety of on- and off-highway applications.

The effort supports the company’s efforts to accelerate the decarbonization of commercial vehicles.

“The hydrogen engine program can potentially expand the technology options available to achieve a more sustainable transport sector, complementing our capabilities in hydrogen fuel cell, battery electric and renewable natural gas powertrains,” said Jonathon White, vice president of engine business engineering.

Ad Loading...

Cummins is investing across a range of technologies to support hydrogen-based transportation including hydrogen engines, fuel cells, electrolyzers and storage tanks, Cummins officials said.

More Fuel Smarts

Range Energy eTrailer.
Fuel Smartsby News/Media ReleaseApril 17, 2026

Range Energy Confirms eTrailer Performance in Winter Testing as Commercial Rollout Nears

Range Energy said its production-ready eTrailer system proved it can boost stability, safety, and efficiency in sub-zero winter conditions as the company moves toward scaled deployment.

Read More →
Circles with trucks demonstrating sustainable features and Top Green Fleets logo
Fuel Smartsby Deborah LockridgeApril 16, 2026

Top Green Fleets of 2026: Nomination Deadline Extended

Is your company a leader in sustainability efforts among trucking fleets? If so, Heavy Duty Trucking's editors want to hear from you.

Read More →
Youtube thumbnail featuring man in Big-Lebowski-inspired sweater
Fuel Smartsby Deborah LockridgeApril 13, 2026

New Lightweight Wheel Cover Targets Simpler Aero Gains [Watch]

Watch to learn how Deflecktor's new wheel cover design is taking a simpler approach to aerodynamics, with an eye toward making it more practical for both trucks and trailers.

Read More →
Ad Loading...
Dual truck tires with black aerodynamic wheel cover and a man bending down getting ready to take one off
Fuel Smartsby Deborah LockridgeApril 10, 2026

Deflecktor: Hubbub Aerodynamic Wheel Cover Cost-Effective Even for Trailers

Aerodynamic wheel covers can deliver small but meaningful fuel-economy gains for fleets, and Deflecktor says its latest design aims to make the technology easier and more affordable to deploy.

Read More →
Podcast thumbnail saying "How to Save on Fuel Costs" with diesel pump in the background and photo of the woman guest
Fuel SmartsApril 9, 2026

Cutting Fleet Fuel Costs in a Volatile Market [Listen]

When diesel prices are as volatile as they've been in 2026, it makes it tough for trucking fleets to plan and control costs. Breakthrough Fuel's Jenny Vander Zanden has insights on near-term savings strategies.

Read More →
YouTube thumbnail saying "How to Save on Fuel Costs" with woman's photo and a photo of a diesel price pump
Fuel Smartsby Deborah LockridgeApril 9, 2026

Diesel Price Swings Aren’t Over. What Can Your Fleet Do?

Practical steps fleets can take to manage fuel costs, from purchasing strategies to driver behavior.

Read More →
Ad Loading...
Illustration with oil wells, dollar bills, and a diesel fuel pump
Fuel Smartsby Deborah LockridgeApril 7, 2026

Diesel Prices Surge Toward Record Highs as Oil Price Volatility Intensifies

Prices jumped another 24 cents in a week, with California topping $7.50 and new data showing fleet fuel costs may already be at record levels.

Read More →
Blue Volvo European cabover truck on snowy road
Fuel Smartsby News/Media ReleaseApril 1, 2026

Volvo Testing Hydrogen-Fueled Internal Combustion Engines on Trucks in Europe

Hydrogen combustion engine trucks will be especially suitable over longer distances and in regions where there is limited charging infrastructure or time for recharging of battery-electric trucks, according to the company.

Read More →
Three CEOs pose displaying binders with memorandum of understanding
Fuel Smartsby Deborah LockridgeApril 1, 2026

Toyota’s Entry Into Cellcentric Signals Push to Accelerate Hydrogen Truck Adoption

By joining Daimler Truck and Volvo, Toyota brings fuel cell expertise to a joint effort aimed at making hydrogen viable for heavy-duty transport.

Read More →
Ad Loading...
Illustration with oil wells, dollar bills, and a diesel fuel pump
Fuel Smartsby Deborah LockridgeMarch 31, 2026

U.S. Diesel Prices Hit $5.40, Top $7 in California

Trucking operators are slowing speeds, cutting empty miles, and declining unprofitable freight as diesel costs continue to rise due to conflict in the Middle East.

Read More →