South Pacific Heavy-Duty Truck

You can have it all with the 2021 X12 and 2021 X15 powertrain lineup from Cummins. With a focus of uptime, total cost of ownership and ease of operations, the Cummins heavy-duty platforms bring you the best 15-liter and 12-liter engines yet. Starting with the most reliable 15-liter ever produced, to offering EX ratings for enhanced driver performance, the X15 and X12 give you the confidence needed to improve your business without sacrificing anything.

X12 Euro V

The innovative architecture of the X12 Euro V results in a remarkably low engine weight of 862 kg, achieved through a sculptured block design and the use of high-strength composite materials for components such as the oil pan and valve cover.

The X12 is Euro 5 emissions compliant using selective catalytic reduction (SCR) technology with AdBlue/DEF (Diesel Exhaust Fluid) dosing. Significantly, the X12 will achieve Euro 6 compliance without the addition of exhaust gas recirculation (EGR).

The X12 incorporates Cummins’ XPI (Extreme Pressure Injection) common rail fuel system, derived from the 15-litre ISX. Generating injection pressures in excess of 30,000 psi, the XPI system improves combustion and fuel economy, reduces noise and enables fast response at low rpm.

The use of a rear geartrain also contributes to overall engine refinement by reducing vibration and lowering noise.

The X12 uses a standard wastegate turbocharger and also has an integrated engine brake that delivers the high retarding power that Cummins heavy-duty engines are renowned for. The engine’s single cam in-head design with roller valve train and high efficiency intake ports continues the design theme of minimum complexity and maximum efficiency.

X12 Euro VI

The new lightweight, high-output 12-litre X12 Euro VI has impressive peak outputs of 490 hp and 1696 lb ft of torque and boasts the highest power-to-weight ratio of any engine in the 10-to-16-litre class. The innovative architecture of the X12 results in a remarkably low engine weight of 917 kg, achieved through a sculptured block design and the use of high-strength composite materials.

The X12 is Euro VI emissions compliant using selective catalytic reduction (SCR) technology with AdBlue®/DEF (Diesel Exhaust Fluid) dosing.

The use of a rear geartrain also contributes to overall engine refinement by reducing vibration and lowering noise. The X12 uses a standard wastegate turbocharger and also has an integrated engine brake that delivers the high retarding power that Cummins heavy-duty engines are renowned for. The engine’s single cam in-head design with roller valve train and high efficiency intake ports continues the design theme of minimum complexity and maximum efficiency.

X15 Efficiency Series

If you want the power to save on your bottom line, then meet the Cummins X15 Efficiency Series – with fuel economy improvements over the Euro V series. On top of the power to save, the Efficiency Series delivers excellent driveability and uptime that you can take straight to the bank. With the advantage of reaching peak torque at 900 RPM, the Efficiency Series gives that added extra.

X15 Performance Series

The X15 Performance Series gives you the ultimate flexibility suitable for both manual and automated transmissions, vocational, heavy-haul and line-haul applications.

With ratings up to 625 hp and 2050 lb-ft of torque available at 1000 rpm, the Performance Series ratings are optimised for application flexibility.

The X15 Performance Series delivers more than just power and driveability. Rugged durability is ensured by the use of proven hardware while continuous improvements have resulted in reliability that provides peace of mind for truck operators. Demand nothing less than the power to perform.

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