Heavy-duty capability in a medium-duty package

The 2024 L9 engines do more than just provide the power, reliability and durability you need to get the toughest jobs done. The 2024 L9 delivers class-leading power and torque ratings, an unmatched power-to-weight ratio, and the dependability and uptime you expect from Cummins. With ratings ranges of 260 hp to 380 hp (194 - 283 kW) and up to 1250 lbft (1695 N•m) of peak torque, the L9 is designed to excel in some of the toughest duty cycles. High-strength components and features, like replaceable cylinder liners for easier rebuilding, add life to the engine and add to its residual value.

All About Uptime:

With extended recommended engine maintenance intervals, you can go longer between oil drains and fuel filter changes. A completely maintenance-free breather means you’ll never have to change a crankcase ventilation filter again. Trucks go longer between trips to the garage for scheduled maintenance, and more money goes back to your bottom line. Also on the 2024, the L9 offers advancements in connectivity to help you find, prevent and resolve issues faster.

Know more. Experience the best from your engine.

Cummins' commitment to engine innovation carries through to digital products and services that enhance the entire life of every Cummins engine. This includes connecting real-time data from vehicles on the road to maintenance and service operations, giving customers an unparalleled ability to look ahead, optimize operations, and minimize downtime.

Our engines come available with first-fit connectivity from the point of sale through Acumen®, our smart computing hardware, or via an OEM telematics device. These first-fit devices offer immediate access to Cummins’ full suite of digital capabilities, Connected Solutions®.  

• Remote Diagnostics – Real-time monitoring of fault alerts and predictive insights for Cummins engines, helping fleets avoid unplanned downtime and reduce costs 
• Over-the-Air Programming – Optimize your Cummins engine’s performance and efficiency by updating software and parameters remotely over-the-air 
• Digital Service Tools – Guidanz® is Cummins’ all-in-one servicing technology suite that helps increase service bay productivity, repair speed and workflow management for a legendary service experience 

Features & Benefits

• VGT® Turbocharger from Cummins Turbo Technologies - The patented design is widely recognized as an industry performance leader. Electronic actuation improves precision and responsiveness. The VGT Turbo is a key element in providing exceptional fuel economy and braking horsepower
• Connected Diagnostics™ - Wirelessly connects your engine to Cummins through a telematics device for immediate diagnosis of a fault alert. Provides a clear recommendation for continued operation, or the need for service, within seconds.
• XPI Fuel System from Cummins Fuel Systems - Delivers superior performance even in lower engine rpm ranges. Enables multiple injection events per cycle, for improved fuel efficiency with quieter, smoother operation.
• Single Module Aftertreatment From Cummins Emission Solutions -
  Combines high-efficiency SCR, a more reliable dosing unit and a DPF into a single flow-through unit. It is up to 70 percent smaller, so it’s easier to install, and as much as 30 percent lighter than the aftertreatment units it replaces. Better heat management improves fuel efficiency and minimizes periodic maintenance.
• Fuel Filters And Lube Filters From Cummins Filtration - Fleetguard® filters protect against corrosion and contaminants with innovative technology, including NanoNet® media, which provides 10 times better protection than conventional fuel filters.
• Single High-Capacity Electronic Control Module (ECM) - A higher capacity offers faster processing of more information, fully integrated control over the engine and aftertreatment system for optimized performance and improved engine lamp strategy.