X12 (Available 2018) for Heavy-Duty Truck

Overview

X12 (Available 2018) for Heavy-Duty Truck

600 lbs Lighter in 2018? The Weight is Worth It.

At 2050 lbs, the X12 is especially designed for weight-sensitive applications. Up to 600 lbs lighter than other medium-bore engines and 150 lbs lighter than the next lightest engine in its class.

What can you carry with 600 more lbs?

  • 30 more cases of soda in your delivery truck
  • 97 more gallons of fuel in your tanker
  • 10 more bushels of corn in your grain hauler

Productivity has a new liter. 12.

Weight reduction is only important if the engine can also get the job done efficiently, day in and day out. The X12 was designed to be a left lane truck with right lane fuel economy. It has the performance and transient response that impresses even the big bore truck drivers while maximizing fuel economy in regional haul and local duty cycles.

  • Up to 500 HP and 1700 lb-ft of torque
  • Revolutionary low-friction design for higher MPG
  • Maintenance intervals that rival the X15 with longer Oil Drains and DPF maintenance beyond the first owner
  • Compatible with a broad choice of transmissions: fully automatic, AMT and manual

Don’t Just Take Our Word For It

We are field testing this engine across North America with our customers in a wide range of vehicles and job types.

Hear from everyone getting real-world experience now:

“Lots of power.”
– Refuse, 54K lb typical GVW (Alaska)
“I think this little motor does you guys proud… It’s a beast.”
- Heavy Hauler, 115K-135K lb typical GVW (Canada)
“Once in top gear, the X12 pulls better than 15L upgrades. Does not downshift as often and later in the hill… keeps on pulling.”
- Regional Hauler, 80K lb typical GVW (Midwest)
“The engine is strong and smooth, very responsive and I can tell it has lots of power.” - Dump Truck, 46K lb typical payload (Arizona)

Specifications

Advertised Horsepower

350-500

261-373 KW

Peak Torque

1250-1700 lb-ft

1695-2305 N•m

Governed Speed

2000 rpm

Clutch Engagement Torque

800 lb-ft

1085 N•m

Number of Cylinders

6

System Weight

2,241 lb

1,017 kg

Engine (Dry)

2,050 lb

930 kg

Aftertreatment System*

191 lb

87 kg

Engine Finder Specifications

Markets
Certification Level EPA 2017
Power 350 - 500 hp / 261 - 373 kW
Torque 1250 - 1700 lb-ft / 1695 - 2305 N•m

Ratings

Engine Model Power hp (kW) Peak Torque lb-ft (N•m) @ rpm
X12 500 500 (373) 1695 (2298) @ 1000
X12 475 475 (354) 1700 (2305) @ 1000
X12 455SA 455 (339) 1550/1700 (2101/2305) @ 1000
X12 455ST 455 (339) 1550/1700 (2101/2305) @ 1000
X12 455 455 (339) 1700 (2305) @ 1000
X12 455 455 (339) 1550 (2101) @ 1000
X12 430 430 (321) 1650 (2237) @ 1000
X12 430  430 (321) 1550 (2101) @ 1000
X12 410SA 410 (306) 1450/1650 (1965/2237) @ 1000
X12 410ST 410 (306) 1450/1650 (1965/2237) @ 1000
X12 410 410 (306) 1650 (2237) @ 1000
X12 410 410 (306) 1450 (1965) @ 1000
X12 400SA 400 (298) 1550/1700 (2101/2305) @ 1000
X12 400ST 400 (298) 1550/1700 (2101/2305) @ 1000
X12 400 400 (298) 1400 (1898) @ 1000
X12 380 380 (283) 1450 (1965) @ 1000
X12 370 370 (276) 1350 (1830) @ 1000
X12 365 365 (272) 1250 (1695) @ 1000
X12 350 350 (261) 1350 (1830) @ 1000

Brochures Available

Title Bulletin Number Request View  
2018 X12 Brochure 5410581 View  Download
X12 Benefits Summary Flyer 5410804 Request View  Download

Torque & Horsepower Curves

Cummins X12 Torque Curve

Cummins X12 Horsepower Curve