PROVEN POWER, EFFICIENCY & RELIABILITY

The latest and greatest highway truck from Western Star deserves the latest and greatest powertrain options from our partners, and that starts with Detroit. From the new Gen 5 versions of the Detroit® DD13® and DD15® engines, to the proven DD16®, to the newest DT12® automated manual transmission, you’ll have the power you can count on.

INTEGRATED DETROIT® POWERTRAIN

The Integrated Detroit® Powertrain is the most fuel-efficient combination of Detroit® components available. Designed to work together to deliver maximum performance and lower operational costs, its list of advanced features include Intelligent Powertrain Management (IPM6) - the next level of predictive technology with the Detroit® DT12® transmission - and the innovative Axle Lubrication Management (ALM) system.

AVAILABLE ENGINES

DETROIT DD13 GEN 5

The DD13 Gen 5 engine offers the best of the best in cutting-edge diesel engine technology and engineering. It's been significantly redesigned with drivers in mind, with numerous innovations to increase performance, durability and productivity.

HORSEPOWER
370-525 HP

TORQUE RANGE
1,250-1,850 lb-ft.

DISPLACEMENT
12.8 L

DETROIT DD15 GEN 5

Backed by years of proven performance, the new Detroit DD15 Gen 5 takes reliability, durability and productivity to the next level. Perfect for any operation, vocational or on-highway, the DD15 delivers everything you need from an engine, including greater profitability.

HORSEPOWER
425-505 HP

TORQUE RANGE
1,550-1,850 lb-ft.

DISPLACEMENT
14.8 L

DETROIT DD16

The biggest, toughest and most powerful engine Detroit has ever produced, the DD16® is the only 16-liter engine available. And since it offers the longest service intervals in the industry, it tackles your hardest jobs while increasing uptime and profitability.

HORSEPOWER
500-600 HP

TORQUE RANGE
1,850-2,050 lb-ft.

DISPLACEMENT
15.6 L

AVAILABLE TRANSMISSIONS

Detroit has taken the long-proven DT12 automated manual transmission and made it even better. Now you can spec your DT12 as direct-drive or overdrive, and even add a PTO for those highway applications that need one.