X15 Efficiency Series (2017)

Overview

X15 Efficiency Series (2017)

Redefining Value.

The highest fuel economy in the industry. The longest maintenance intervals, for lower maintenance costs. Increased uptime, for greater productivity and profits. Technology that accelerates service accuracy and speed. The biggest, most capable parts and service network in the industry. Being able to choose the best components and put them together. Top it off with the best resale value of any engine in the industry, and you’ve got a Total Cost of Ownership that puts you in front of your competition.

More Horsepower. More Savings.

Whether you’re hauling 80,000 pounds through the Rockies or you’re an expedited shipper committed to delivering on a moment’s notice, you need a big-bore 15-liter engine to get the job done – but not just any big-bore: You need the X15. Otherwise, you’re going to be riding the right lane with your flashers on and getting passed by minivans. Not to mention, you’ll be wasting fuel. Fact is, the X15 Efficiency Series will deliver best-in-class fuel economy on those kinds of runs, with up to 500 hp. The X15 500 is the ultimate package, pleasing drivers and accountants alike, and can be expected to drive our industry-leading resale value to even greater heights down the road.

Brawn And Brains.

The value that Cummins is bringing to the trucking industry goes well beyond engine hardware.

Rookies drive like pros with ADEPT.™ ADEPT interacts with automated manual transmissions, adapting to operating conditions to help even novice drivers operate as efficiently as your most seasoned and efficient professional.

The full suite of ADEPT features includes SmartTorque2, SmartCoast™ and Predictive Cruise Control. Together, they are proven to deliver up to 6 percent better fuel economy.

Additionally, Cummins is bringing the next step in remote connections with our Connected Solutions™ telematics features. Along with our proven Connected Diagnostics system, we’re introducing Connected Calibrations,™ with Over-the-Air (OTA) engine customization.

Trust Makes All The Difference.

The most reassuring part of owning any Cummins-powered vehicle is knowing that we’ve always got your back. Cummins engine experts and our extensive training programs ensure service and support excellence you can depend on, no matter the situation. We are committed to the success of your business, which means complete dedication to working with you on everything from upfront vehicle and engine spec’ing to maximizing your vehicle uptime. You aren’t just buying a Cummins engine; you’re buying Cummins expertise and commitment, anywhere and everywhere your business takes you.

Specifications

Power To Go. Power To Whoa.

The X15 Efficiency series is optimized to deliver the power you need, with 400 hp to 500 hp and 1450-1850 lb-ft of peak torque – more than enough to get you off the line, down the road and up the steepest hill. But what’s really impressive is what happens when you crest the hill and take your foot off the accelerator. That’s when the most powerful engine brake in the industry kicks in, and you just ease on down the road. You get over 400 braking horsepower (bhp) at just 1300 rpm.

Advertised Horsepower 400-500 hp 298-372 kW
Peak Torque 1450-1850 lb-ft 1965-2508 N•m
Governed Speed 1800/2000 rpm
Clutch Engagement Torque 1000 lb-ft 1356 N•m
Number of Cylinders 6
System Weight 3,152 lb 1,430 kg
Engine (Dry) 2,961 lb 1,343 kg
Aftertreatment System* 191 lb 87 kg

Engine Finder Specifications

Markets
Certification Level EPA 2017
Power 400 - 500 hp / 298 - 373 kW
Torque 1450 - 1850 lb-ft / 1966 - 2508 N•m

Ratings

With a broad range of traditional, SmartTorque2 and SmartAdvantage ratings from 400 hp to 500 hp, there is an optimized solution to deliver what you need with the fuel economy you want.

The Power Of Choice: Direct Drive and Overdrive.

X15 SmartAdvantage™ ratings (SA) are compatible with either small-step overdrive and direct-drive powertrain options, making this the most fuel-efficient powertrain you can buy.

Engine Model

Power hp (kW)

Peak Torque lb-ft (N•m) @ rpm

X15 500 SA

500 (372)

1550/1850 (2101/2508) @ 1000

X15 500 ST           

500 (372)

1650/1850 (2237/2508) @ 1000

X15 500

500 (372)

1850 (2508) @ 1000

X15 450 SA

450 (335)

1550/1850 (2101/2508) @ 1000

X15 450 SA

450 (335)

1550/1750 (2101/2372) @ 1000

X15 450 ST

450 (335)    

1650/1850 (2237/2508) @ 1000

X15 450 ST

450 (335)

1550/1750 (2101/2372) @ 1000

X15 450

450 (335)

1850 (2508) @ 1000

X15 450

450 (335)

1750 (2372) @ 1000

X15 450

450 (335)

1650 (2237) @ 1000

X15 400 SA

400 (298)

1550/1850 (2101/2508) @ 1000

X15 400 SA

400 (298)

1550/1750 (2101/2372) @ 1000

X15 400 SA

400 (298)

1450/1650 (1965/2237) @ 1000

X15 400 ST

400 (298)    

1550/1850 (2101/2508) @ 1000

X15 400 ST

400 (298)    

1550/1750 (2101/2372) @ 1000

X15 400 ST

400 (298)

1450/1650 (1965/2237) @ 1000

X15 400

400 (298)    

1850 (2508) @ 1000

X15 400

400 (298)    

1750 (2372) @ 1000

X15 400

400 (298)    

1650 (2237) @ 1000

Features

Durability, Efficiency And Innovation That Will Make History. Again.

It began as a radically innovative platform, complete with dual overhead cams, exceptionally strong engine braking and an even tougher head and block, for unrivaled dependability. Customers took notice, quickly making the Cummins ISX15 the best-selling engine in its category, by far. But at Cummins, we’re never satisfied with the status quo. So virtually every critical component has been scrutinized, modified, upgraded and improved. All that makes the 2017 X15 a completely reinvented platform that delivers the best performance and dependability in the industry.

Dynamic electronic features, the high-efficiency VGT® Turbo and an optimized combustion formula have resulted in a significant increase in fuel efficiency and throttle response. The integrated Single Module™ aftertreatment system dramatically increases cleaning intervals while saving weight and space. We’ve combined the best available components with our advanced engine controls into one fully integrated powertrain package that is so efficient that it is redefining the heavy-duty trucking industry. Again.

VGT® Turbocharger From Cummins Turbo Technologies

This turbocharger has variable geometry, for precision and responsiveness. The actuator is four to six times stronger than that of previous versions, for even better dependability. An enhanced design with a new impeller provides rapid boost and improved engine braking.

XPI Fuel System From Cummins Fuel Systems

The XPI system delivers superior performance, regardless of engine rpm. Multiple injection events per cycle improve fuel efficiency and enable smoother, quieter operation. Steel plungers and diamond like coated roller tappets make this the toughest XPI fuel system to date.

Single ModuleTM Aftertreatment System From Cummins Emission Solutions

A flow-through design offers better heat management, for improved efficiency. Increased ash capacity means fewer cleanings. And it’s up to 40 percent lighter and 60 percent smaller than two-part systems.

Fleetguard® Fuel Filters And Lube Filters From Cummins Filtration

These filters protect against corrosion and contaminants that can cause performance issues. The Fleetguard LF 14000NN lube filter provides less restriction, for faster flow and better cold-start capability, while still trapping nearly 99 percent of particles down to 4 microns.

High-Capacity Electronic Control Module (ECM)

The robust ECM manages the engine and aftertreatment system simultaneously, for optimum performance and fuel efficiency.

Cummins Engine Brake

The most powerful engine brake in the industry offers up to 600 bhp, adding control on downhill grades, and helping reduce service brake wear, downtime and replacement costs.

Vehicle Acceleration Management (VAM)

VAM reduces driveline wear and improves fuel economy in bobtail and light-load driving conditions.

Connected DiagnosticsTM

This feature uses telematics to wirelessly connect the engine to Cummins for rapid fault diagnosis. It enables continued operation without risk in most events, maximizing uptime.

Power Cylinder Improvements

Combustion’s hot. That’s bad for your oil. The X15 incorporates an enhanced piston design that reduces the transfer of heat to the oil, increasing both durability and oil-drain intervals.

Maintenance

Less Time In The Shop, And More On The Road.

Cummins X15 now has some of the longest service intervals in the industry. The X15 will help you keep more of your hard-earned money. If you’re currently running a 2010 Cummins ISX15, you’re going to see a 40 percent reduction in maintenance costs over the first half-million miles – from close to $14,000 to less than $8,000.

How is that possible? Not only have we increased the oil-drain interval to 50,000 miles in light duty cycles, but with Cummins OilGuard oil analysis program, engines can extend to 80,000 miles between drains. The DPF in our Single Module aftertreatment system doesn’t require a cleaning until 600,000 to 800,000 miles, which makes it nearly maintenance-free for many first owners. And now, the system tells you when the DPF needs to be changed, so you can wait as long as it takes to get full before replacing it. Our fuel filters last 2.5 times longer. And we eliminated the hydrocarbon doser and the maintenance on the crankcase ventilation filter, so you don’t even need to think about those anymore.

Item Severe
< 5.5 mpg
Normal
5.5-6.5 mpg
Light
>6.5 mpg
Oil Drain Interval 25,000 Mi
40,000 Km
35,000 Mi
56,000 Km
50,000 Mi
80,000 Km
Oil Drain with OilGuard1 -- -- Up to
80,000 Mi
130,000 Km
Fuel St 1 Filter 25,000 Mi
40,000 Km
35,000 Mi
56,000 Km
50,000 Mi
80,000 Km
Fuel St 2 Filter 25,000 Mi
40,000 Km
35,000 Mi
56,000 Km
50,000 Mi
80,000 Km
Diesel Particulate Filter2 250,000-400,000 Mi
400,000-640,000 Km
400,000-600,000 Mi
640,000-960,000 Km
600,000-800,000 Mi
960,000-1,300,000 Km
DEF Filter 250,000 Mi
400,000 Km
280,000 Mi
448,000 Km
300,000 Mi
480,000 Km
Valve Adjustment 500,000 Mi
800,000 Km
500,000 Mi
800,000 Km
500,000 Mi
800,000 Km

Brochures Available

Title Bulletin Number Request View  
2017 - QRG - Truck Maintenance And Operation - X15 (EPA 2017) 5410641 Request View  Download
2017 X15 Efficiency Series Brochure 5410582 Request View  Download
2017 X15 Efficiency Series Brochure - French 5410596 Request View  Download
2017 X15 Efficiency Series Brochure - Mexico View  Download
X Series Euro VI Brochure – A4 Format 5410607 View  Download

Torque & Horsepower Curves

With a broad range of traditional, SmartTorque2 and SmartAdvantage ratings from 400 hp to 500 hp, there is an optimized solution to deliver what you need with the efficiency you want.



Fuel Economy Improvements

20% Better. EveryGallon.

If you’re driving a 2010 truck, you’re missing out on lots of great stuff, including the introduction of the SmartAdvantage Powertrain. Cummins and Eaton® have combined forces to deliver the ultimate fuel-sipping powertrain package on the market. Many things go into perfecting the integration of the best products from two legendary powertrain component manufacturers, but here’s what matters: You can get up to 20 percent better fuel economy with the X15 SmartAdvantage Powertrain alone. If you’re currently getting 6.5 mpg, you’ll see that number jump to at least 7.5 mpg, and probably closer to 8 mpg. For a truck running 120,000 miles per year, that means about 2,500 fewer gallons of fuel going into the tank – a direct savings of $7,500 per truck at $3 a gallon. The SmartAdvantage Powertrain also offers the power of choice. It is available with either small-step overdrive or direct-drive gearing. To see which option might fit your needs, visit cumminsengines.com/smartadvantage and click on the Selection Guide.