L9 (2017) | Cummins Inc.

Overview:

Building on the SmartEfficiency initiatives of improved fuel economy, lower total cost of ownership and increased uptime, the L9 is benefiting coach operators and owners. With the best power-to-weight ratio in its class, revised gearing recommendations and product improvements over the last decade, the L9 provides up to 15 percent better fuel economy compared to the ISL from the 2000s. And with over 30 years of proven performance, you can trust the L9 to keep your coach running on any route or trip.

Governed Speed	2000-2100 RPM
Clutch Engagement Torque	550 LB-FT	756 N•m
Number of Cylinders	6
Engine Weight (Dry)	1,695 LB	769 KG

Engine Model	Advertised HP (kW)	Peak Torque Lb-Ft (N•m) @ RPM
L9 380	380 (283)	1250 (1695) @ 1400
L9 350	350 (261)	1150 (1561) @ 1400

Cummins designs, develops and supports every component, from the air handling to the exhaust aftertreatment, to work as a totally integrated system – so we can optimize every function better than other engine manufacturers.

VGT™ Turbocharger from Cummins Turbo Technologies- The VGT Turbocharger’s patented design is widely recognized as the industry leader for performance. Precision boost control across the speed range delivers performance and fuel economy.
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 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.
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 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.
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.

Maintenance Item	Miles/Kilometers	Hours	Months
Oil & Filter	15,000 MI 24,000 KM	500	6
Fuel Filter	15,000 MI 24,000 KM	500	6
Coolant Filter	15,000 MI 24,000 KM	500	6
Overhead Adjustment	150,000 MI 240,00 KM	5,000	48
Coolant Check	60,000 MI 96,000 KM	2,000	24
Coalescing Filter	Every 3rd to 4th Oil Change
DEF Filter	200,000 MI 320,000 KM	6,500
Diesel Particulate Filter	200,000 MI 320,000 KM	6,500