Automotive Fleet
MenuMENU
SearchSEARCH

Freightliner Adds 12-Liter Natural Gas Power to 114SD Severe-Duty Model

The increased output of the Cummins-Westport ISX12 G will open new markets to the 114SD, including mixer, dump, and roll-off applications. At 400 horsepower and 1,450 pounds-feet, the IXS12 G is an ideal engine for the severe-duty market, where natural gas is fast becoming an alternative to diesel fuel.

by Staff
July 30, 2014
2 min to read


The 114SD, built on Freightliner’s severe-duty platform, now offers 12-liter natural gas power.Photo: Freightliner

The Cummins Westport ISX12 G heavy-duty natural gas engine will be available as a factory-installed option for the Freightliner 114SD severe duty truck model in 2015.

The 114SD has been available with natural gas with the 9-liter Cummins Westport ISL G engine since 2011. With the upcoming availability of the ISX12 G, fleets can get the horsepower and torque ratings they need to meet the toughest of applications, Freightliner says.

Ad Loading...

“The 114SD, when paired with the Cummins Westport ISX12 G heavy-duty natural gas engine, will provide our vocational customers with another green option for their toughest jobs,” said Mary Aufdemberg, director of product marketing for Freightliner Trucks. “Our entire natural gas product line – from the 114SD to the M2 112 and Cascadia 113 – is not only environmentally friendly, but durable, productive and powerful.”

The 12-liter ISX12 G heavy-duty natural gas engine features ratings of up to 400 horsepower and 1,450 pounds-feet of torque, and operates on compressed natural gas or liquefied natural gas. Factory-installed back-of-cab mounted CNG tanks are available in 60 and 75 diesel-gallon-equivalent  configurations.

Built on Freightliner’s severe-duty platform and designed for a variety of applications, the 114SD features a chassis engineered for ease of body upfit and is available with a wide range of vocational rear suspensions and frame options.

Freightliner’s commitment to green technologies is part of parent company Daimler AG’s global “Shaping Future Transportation” initiative. Launched in 2007, the initiative is focused on reducing criteria pollutants, carbon dioxide and fuel consumption through the use of clean, efficient drive systems including clean diesel and alternative fuels. Since 2008, Freightliner Trucks has sold more 3,500 natural gas-powered trucks and tractors.

For more information, go to www.FreightlinerTrucks.com.

More Green Fleet

Sketch of chassis cab truck.
Green Fleetby Chris BrownMarch 9, 2026

Startup ZMD Motors Developing Electric Conversion for Ram 5500 Work Trucks

Detroit-based company says it has begun early development of a system to convert internal combustion Ram 5500 chassis-cab trucks to electric power.

Read More →
SponsoredFebruary 26, 2026

MOVING ON FROM DEBATE: A Guide for Fleet Managers Who Just Want To Get Electrification Done

Fleet managers are done with the debate—and focused on execution. Learn how to build a practical electrification strategy that aligns infrastructure, operations, and financing while keeping costs controlled and deployment scalable with support from Blink Charging. Discover how smart planning today positions fleets for long-term performance and ROI.

Read More →
EV charging symbol
Green Fleetby Chris BrownFebruary 12, 2026

U.S. EV Adoption Is Climbing, but Commercial and Passenger Markets Diverge

New industry group data revealed that light-duty electric vehicle sales are hitting record market share and volumes, while commercial EV volume dipped. What’s driving the fluctuations?

Read More →
Ad Loading...
SponsoredFebruary 6, 2026

Hybrids: Electrification Without the Challenges

For fleet managers, fuel is one of the biggest line items in the budget — and it's one hybrids can shrink without changing how your people work. Download the eBook to see the numbers, understand the technology, and get a step-by-step guide to making the switch.

Read More →
A side view of the yellow, blue, and red Slate Auto electric pick-up truck and SUV
Upfittingby Martin RomjueDecember 8, 2025

How To Upfit Electric Work Trucks and Vans

The biggest challenge lies in balancing additional equipment and accessories with EV battery capacity and range.

Read More →
Green Fleetby Martin RomjueDecember 4, 2025

How Fleets Can Adjust Approaches To EV Adoption

With the expiration of federal incentives, EV success now hinges less on government policy and more on discounts, battery tech progress, increased range, and broader infrastructure.

Read More →
Ad Loading...
Panelists on stage at FFC.
Fleet Forwardby Martin RomjueOctober 29, 2025

Despite World Troubles, Forward Thinking Guides Fleets

Fleet operators shared their challenges during an annual conference that embraced the latest advances across all aspects of running private- and public-sector vehicles.

Read More →
Illustration of GM Energy’s vehicle-to-home system showing an electric truck connected to home power storage, the grid, and GM Energy Cloud through the myOwner app.
Green Fleetby News/Media ReleaseOctober 28, 2025

GM Energy Details Partnerships and Targets for Public Charging Build-Out

EVgo, Pilot, ChargePoint and IONNA named; goal is 35k GM-invested DC stalls by 2030, with customer-experience upgrades at sites.

Read More →
Chart showing September 2025 EV sales. New EV sales totaled 147,716 units, up 44% year over year, and used EV sales hit 40,569 units, up 76%, marking strong third-quarter performance.
Green Fleetby News/Media ReleaseOctober 23, 2025

Q3 Electric Vehicles Sales Hit Record High

EV buyers took advantage of the final federal tax credit days, while average prices edged up for new EVs and continued to decline for used models.

Read More →
Ad Loading...
A green vertical bar graph chart showing the rises and dips in quarterly EV sales since early 2022.
Green Fleetby News/Media ReleaseOctober 10, 2025

EV Sales Hit Record in Q3 Before Incentives Expire

But most OEMs record low-volume sales, which means EV profitability remains a distant dream for nearly every automaker.

Read More →