How the Newest Cummins X15 Engine Meets EPA 2027 Emissions Regs

Transteck, Inc. – Commercial Truck Dealership – Blog

September 5, 2024
5:54 pm

Cummins has officially revealed the details of its 2027 X15 diesel engine, designed to comply with the EPA’s 2027 emissions requirements. Not only does this engine meet stringent environmental standards, but it also boasts improvements in fuel economy without increasing weight or the use of diesel exhaust fluid (DEF).

Simplified Exhaust Aftertreatment System

One of the key features of the 2027 X15 is its innovative exhaust aftertreatment system. This system is significantly simplified, incorporating a cutting-edge electric heating system. According to Cummins, this design optimizes aftertreatment efficiency while maintaining engine performance, ensuring that the X15 remains a reliable and high-performing engine.

Building on the HELM Engine Platform

The new X15 engine is built upon the Cummins HELM engine platform, which was introduced earlier this year. Cummins showcased this next-generation engine at its corporate headquarters in Columbus, Indiana, offering journalists an exclusive first look at the advancements made in diesel engine technology.

A Billion-Dollar Investment in Reliability

Cummins has invested over $1 billion in the development of the 2027 X15 engine. This investment goes beyond just design and hardware; it also includes significant funding for people, facilities, and supply chain enhancements. The goal is to ensure that the X15 engine meets regulatory requirements while delivering the reliability and efficiency that Cummins’ customers expect.

Advanced Features for Enhanced Performance

The 2027 X15 introduces several new features, including a variable-geometry turbocharger, a new engine brake, and a 48-volt, belt-driven alternator. The upgraded exhaust gas recirculation (EGR) system, combined with the electric heating system, allows the engine to meet emissions regulations even when the engine is cold. This ensures optimal performance without compromising fuel economy or increasing DEF consumption.

Improved Fuel Economy and Integrated Powertrain Solutions

Cummins has made significant improvements to the X15 engine, resulting in up to 7% better fuel economy compared to the previous EPA24 version. This improvement is achieved through a combination of advanced engine design and integrated powertrain components, including the new Endurant automated manual transmission and the Cummins 14X HE SFR 2.05 axle. These enhancements reflect Cummins’ commitment to providing fully integrated powertrain solutions that maximize efficiency and performance for their fleet customers. With these advancements, the 2027 X15 diesel engine sets a new standard in the industry, offering a powerful, efficient, and environmentally friendly solution for the future of commercial trucking.

Advanced Turbocharger, Cummins Diesel Innovations, Cummins X15 Engine, Fuel Economy, HELM Engine Platform