Rising to the challenge
As the clouds of uncertainty gather on the horizon, rise above them with the power, efficiency and reliability of the most trusted engine in the industry.
Reliability runs on experience
With its trusted and proven technology backed by 25+ years of leadership and experience, the 2027 X15™ gives you the confidence to move forward fearlessly.
Up to 4% better fuel efficiency
Base engine optimizations contribute up to 4% improvement in fuel efficiency while maintaining similar diesel exhaust fluid consumption (vs. the 2024 EPA X15™).
Weight neutral system
A sculpted engine block reduces engine weight and adds strength to the right places, resulting in a weight-neutral system—allowing for maximum payload.
Up to 605 hp and 2,050 lb-ft of torque
With up to 605 horsepower and 2,050 lb-ft of torque, the X15 has the power to rise above any obstacles scattered across tomorrow's road.
Getting to know the 2027 X15™
Dive deeper into the design and features of the 2027 X15 with this interactive model.
48V Alternator
Piston Design
Cartridge-Style Filters
Improved SCR
Weight Neutral System
Electric Heating
48V Alternator
This simple design incorporates a familiar technology to provide dedicated power for the Cummins Electric Heating System.
Piston Design
Evolutions to the piston bowl design increase compression ratio while piston skirt changes reduce friction, improving fuel efficiency.
Cartridge-Style Filters
Maintenance is made easy with cartridge-style filters that not only reduce costs but also minimize environmental impact.
Improved SCR (Selective Catalytic Reduction)
Updated catalyst technology maximizes NOx conversion and improves low temperature performance.
Weight Neutral System
A sculpted engine block reduces engine weight and adds strength to the right places, offsetting the weight gain from the aftertreatment system, and resulting in a weight neutral system that translates to higher payloads and more completed jobs.
Electric Heating
Specifically designed for heavy-duty commercial vehicles, this heating system operates independently of the engine. It allows catalysts to reach operating temperature faster on cold start-ups and enables on-demand thermal management. Engine efficiency and performance are also optimized without compromising thermal management.
Visit the product page to find more in-depth details about the 2027 X15
such as product specifications, engine resources and more.
More X15 resources
