METRO Magazine Logo
MenuMENU
SearchSEARCH

Cummins ISX11.9 receives EPA, CARB certification

Like the lineup of on-highway Heavy-Duty and MidRange engines, the engine utilizes Cummins Aftertreatment System with Selective Catalytic Reduction (SCR) technology.

July 21, 2010
2 min to read


Cummins Inc. received certification from the Environmental Protection Agency (EPA) and the California Air Resources Board (CARB) for its ISX11.9 diesel engine. The new ISX11.9 is an expansion of the industry-leading Heavy-Duty engine product line for Cummins and will commence with full production in August.

Certification of the ISX11.9 rounds out the complete lineup of Cummins engine offerings for on-highway applications for 2010.

Ad Loading...

The current EPA regulations took effect Jan. 1, 2010, and are the most stringent in the world for on-highway commercial vehicle engines. Cummins ISX11.9 meets the emissions regulations for Oxides of Nitrogen (NOx) and Particulate Matter (PM) of 0.2 grams and 0.01 grams per brake-horsepower-hour, respectively.

The rugged ISX11.9 builds upon the legacy of strength and performance of the Cummins ISM engine and the proven technology of the ISX15. It features an enhanced cooled Exhaust Gas Recirculation (EGR) system, a single VGT Turbocharger and the proprietary XPI fuel system.

Like the lineup of on-highway Heavy-Duty and MidRange engines, the ISX11.9 will also utilize Cummins Aftertreatment System with Selective Catalytic Reduction (SCR) technology.

Featuring better pulling power, excellent driveability and stronger clutch engagement torque, the ISX11.9 is designed for rigorous duty cycles, including those for work trucks such as dump and mixer trucks, and refuse applications. Additionally, a full suite of horsepower and torque ratings are available for fire and emergency vehicles, recreational vehicles and motorcoaches as well as tanker and day cab operations in Class 8 trucks.

 

 

 

More Motorcoach

A Coach USA vehicle wrapped for Newark International Airport service.
TechnologyMarch 11, 2026

Scaling Smart: How Fleet Operations Can Cut Downtime and Drive Growth

A phased approach to technology, in-house capabilities, and workforce investment is helping transportation leaders break the reactive cycle and build more resilient, revenue-focused operations.

Read More →
A Prevost H3-45 at 2026's UMA Expo.
Motorcoachby StaffMarch 9, 2026

Prevost Claims Largest Market Share in North American Motorcoach Industry

The company's flagship H3-45 is also the best-selling 45-foot motorcoach in North America, according to vehicle registration data from S&P Global Mobility (Polk).

Read More →
Cover photo for Biz Briefs dated March 6, 2026
Technologyby Staff and News ReportsMarch 6, 2026

Biz Briefs: Tolar Manufacturing Supports PSTA Spark Service and More

Stay informed with these quick takes on the projects and companies driving progress across the transportation landscape.

Read More →
Ad Loading...
A photo of a Parsons & Sons Transportation motorcoach
Motorcoachby Alex RomanFebruary 26, 2026

How a Family-Run Company Built One of Atlantic Canada’s Most Trusted Transportation Providers

Family-run Newfoundland-based operator earns top honors with unwavering commitment to safety, innovation, and community.

Read More →
Photo of Daimler Coaches North America President/CEO Dietrich Mueller
Motorcoachby Alex RomanFebruary 20, 2026

Daimler Coaches North America President/CEO Discusses New US Facility and More

METRO’s Executive Editor Alex Roman spoke with Mueller about the opening event, the company’s progress since launching in late 2022, and the road ahead.

Read More →
Ribbon cutting at UMA Expo 2026
Motorcoachby Staff and News ReportsFebruary 17, 2026

Highlights: UMA Expo 2026 Hits Alabama

One of the motorcoach industry's largest events took place in February in Birmingham.

Read More →
Ad Loading...
A Parsons & Sons bus
Motorcoachby Staff and News ReportsFebruary 12, 2026

Parsons & Sons Named METRO’s 2026 Motorcoach Operator of the Year

METRO Executive Editor Alex Roman presented the award to the operation’s President/CEO Scott Parsons at the United Motorcoach Association’s EXPO in Birmingham, Alabama.

Read More →
An overhead shot of Daimler Coaches North America's Jacksonville headquarters.
Motorcoachby StaffFebruary 12, 2026

Daimler Coaches North America Opens U.S. headquarters in Jacksonville, Florida

The new facility, spanning more than 43,000 square feet, includes pre-delivery inspection, a large repair, maintenance, and service center, an administrative building, and a dedicated training and delivery center for customers and service partners.

Read More →
A 2026 Van Hool that will be displayed at UMA Expo.
Motorcoachby StaffFebruary 6, 2026

ABC Companies to Debut 2026 Van Hool CX45, Design Lab at UMA EXPO 2026

The company will feature a fully equipped 2026 Van Hool CX45 alongside an interactive virtual showroom highlighting the company’s latest vehicle, service, parts, and support solutions.

Read More →
Ad Loading...
ABA chart on New and pre-woned Total Sales, 2023-2025
Motorcoachby Staff and News ReportsFebruary 5, 2026

Report: Motorcoach Market Sustains Post-Recovery Growth With Sales Above 2K Units

The survey, produced by the ABA’s research arm, the American Bus Association Foundation, reports quarterly on data collected from surveys of major motorcoach manufacturers that sell vehicles in the US and Canada.

Read More →