X10
The next workhorse engine
Our next evolution in power and performance performance with 320 - 450 horsepower and 1000 - 1650 lb-ft torque. Get ready for the engine developed to take on the toughest challenges and power your success for years to come.
Power
Torque
Certification
Product Availability
Applications
Why choose the X10? This engine is designed to give you maximum:
Toughness
Engineered with components built for an X15, the X10’s robust architecture is designed to tackle the toughest jobs.
Dependability
Built to last, minimizing downtime and providing reliability in your fleet.
Sustainability
Designed with sustainability in mind, the X10 reduces fuel consumption, contributing to a cleaner and sustainable future.
Versatility
From construction to transit, the X10 delivers versatility, meeting the needs of diverse applications.
Power to perform
Get ready for the next level of performance. Watch the video to discover how the Cummins X10 engine is built to power your fleet — delivering toughness, reliability, and innovation for every job.
Cummins X10 engine highlights
The Cummins X10 is designed and built to meet upcoming regulations, while carrying forward the legendary reliability and durability of the L9 and X12.
Click the features of the X10 to learn more.
Cummins X10 engine product details
| Category | Detail | |
|---|---|---|
| Applications | Vocational, Body builder, Pickup & delivery, Emergency vehicle, Recreational vehicle, Regional haul, and Transit | |
| Replaces | L9 and X12 engine platforms | |
| Horsepower |
Medium-Duty up to 380 hp Heavy-Duty up to 450 hp |
|
| Peak Torque |
Medium-Duty up to 1,250 lb-ft Heavy-Duty up to 1,650 lb-ft |
|
| Integrated Braking Power |
Medium-Duty up to 300 hp Heavy-Duty up to 450* hp |
|
| Displacement | 10 liters | |
| Fuel Economy vs. L9 | Up to 4% improvement | |
| Fuel Economy vs. X12 | Up to 2% improvement | |
| Weight vs. X12 | Approximately 100 lbs lighter | |
| Platform | Cummins HELM™ (the industry's first fuel-agnostic platform designed for diesel, natural gas, and hydrogen) | |
| Emission Compliance | Meets 2027 emissions regulations | |
| PTO Output | 590 lb-ft continuous and up to 664 lb-ft intermittent | |
| PTO Configurations | Front Engine PTO (FEPTO) and Rear Engine PTO (REPTO) | |
| Connectivity | Acumen® smart computing hardware with over-the-air calibration and software updates | |
| Digital Tools | Maintenance monitor with virtual sensors for predictive prognostics | |
| Availability | North America | |
| Turbocharger | 7th Generation heavy-duty VGT from Cummins Turbo Technologies | |
| ECM | Cummins ECM3550 with enhanced safety, cybersecurity, and software functionality | |
| Aftertreatment | 2027 Twin Module with 48V belt-driven alternator | |
| Filters | Cartridge-style lube and fuel filters | |
| Cylinder Design | Wet-sleeve cylinder design | |
| Crankcase Ventilation | Closed Crankcase Ventilation (CCV) system |
Frequently asked questions
The X10 is a mid-bore heavy-duty engine designed to deliver heavy-duty performance in a midsize package. It replaces both the L9 and X12 engine platforms and delivers a new level of performance, durability, and efficiency for heavy and medium-duty customers. Learn more
Delivering up to 450 horsepower and 1,650 lb-ft of torque, the X10 gives customers the muscle they need to tackle tough jobs. Medium-duty ratings reach up to 380 hp and 1,250 lb-ft of torque. Learn more
The X10 is engineered to take on a wide range of demanding work. Common applications include vocational, body builder, pickup and delivery, emergency vehicle, recreational vehicle, regional haul, and transit. Learn more
Yes, depending on your application, the X10 is designed to replace both the L9 and select X12 ratings, delivering comparable performance in a lighter, more efficient package. With up to 450 hp and 1,650 lb-ft of torque, it enables customers to transition with confidence. For higher horsepower or more demanding applications beyond the X10 range, the X15 remains the right fit. Learn more
Compared to the X12, the X10 is significantly lighter, meaning more payload, better fuel economy, and greater packaging flexibility. Cartridge-style filters allow the filter media to be replaced individually rather than swapping the entire unit to help optimize maintenance costs. Automatic Engine Shutdown reduces unnecessary fuel consumption and engine wear during extended idle periods. Learn more
Innovation, technology and services
Cummins HELM™ is our industry’s first series of engine platforms that allows customers to choose the fuel type that best suits their needs. The X10 series is a part of the innovation that continues to not only steer our company but also our industry in a brighter direction.
