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Cummins to introduce 15-liter natural gas engine for North America; basis for hydrogen engine under development

Cummins Inc. will bring to market a 15-liter natural gas engine for heavy-duty trucks. The 15-liter natural gas engine is an important part of Cummins strategy for its path to zero emissions. The strategy focuses on new powertrains including advanced diesel, natural gas, hydrogen engines, hybrids, battery electric, and fuel cells along with an increased use of low carbon fuels and renewable electricity and related infrastructure.

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The expanding product lineup will help achieve Cummins’ PLANET 2050 environmental goals which include lowering emissions from newly sold products by 30% by 2030 and a goal of carbon neutrality by 2050, aligned with the Paris Climate Accord targets.

Cummins continues to expand our portfolio of power solutions options so customers can meet their business goals and operational objectives, while also meeting emissions standards and achieving their sustainability goals.

We believe this natural gas option is a game changer as a cost-competitive power option to existing diesel powertrains in heavy-duty trucking, making it a great complement to reduce CO2 emissions. The launch of our universal 15-liter platform for heavy-duty ensures a full range of natural gas powertrains that are available to meet the emission reduction goals of all customers and end markets.

Equally exciting is that this engine is also the basis for the recently announced hydrogen internal combustion engine currently being tested that we are developing. Cummins continues to broaden our range of power solutions to help our customers succeed and help them transition seamlessly to the cleanest and most efficient options.

—Srikanth Padmanabhan, President, Engine Business, Cummins

The 15-liter natural gas engine can be paired with a Cummins Eaton Automated Transmission Technologies Endurant HD Transmission and Cummins Fuel Delivery System, creating a purpose-built and fully integrated natural gas powertrain. Other transmission pairings will be available at launch for specialized applications.

The 15-liter engine will offer ratings up to 500hp and 1,850 lb-ft (2,500 N·m) of torque and is expected to weigh 500 lbs less than comparable 15-liter diesel engines currently available on the market while not requiring Selective Catalytic Reduction (SCR) to meet 2024 California or Environmental Protection Agency emission standards.

When powered with renewable natural gas (RNG), using methane collected from organic waste as the primary fuel source, the system can be credited with a neutral to negative carbon index, resulting in net greenhouse gas (GHG) emissions at or below zero.

For the first time last year, the energy weighted carbon intensity (CI) value of California’s natural gas vehicle fuel portfolio in the Low Carbon Fuel Standard (LCFS) program was below zero—at -0.85 gCO2e/MJ.

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