Detroit is the industry-leading original equipment manufacturer of state-of-the-art engines specifically designed for integrated, optimised performance and efficiency inside Western Star trucks. Optimised for your bottom line, Detroit engines are designed for maximum productivity.

We offer the following truck engines from Detroit.


The best just got even better. The new DD13 Gen 5 engine builds upon Detroit’s industry-leading heavy-duty engine legacy and proven technologies to bring efficiency and performance to the next level. The DD13 Gen 5 offers the best of the best in cutting-edge diesel engine technology and engineering, resulting in exceptional performance and low total cost of ownership.

From cutting-edge diesel engine technology to expert engineering and more, the DD13 Gen 5 is an engine you can count on – no matter what the job.


See what the DD13 Gen 5 is made of.

ConfigurationInline 6 Cylinder
Bore & Stroke132 x 156mm (5.2 x 6.15”)
Displacement12.8 L
Compression Ratio20:3:1
Weight (Dry)1110 kg (2447 lb)
Oil System Capacity38L
Torque Range1,550-1,850 LB-FT
Horsepower450-525 HP


The DD13 Gen 5 is fitted to the Western Star 47X and 48X.


Extreme heavy duty and heavy hauling for your biggest jobs.

The Detroit DD16 truck engine is the biggest, most powerful truck engine Detroit has ever produced. With a wide, flat torque curve, and delivering up to 2050 lb-ft and 600 horsepower, it tackles your hardest jobs while performing with the fuel efficiency and reliability you’ve come to count on from Detroit.


See what the DD16 is made of.

ConfigurationInline 6 Cyliner
Bore & Stroke139 x 171mm (5.47 x 6.73”)
Displacement15.6 L
Compression Ratio17:1
Weight (Dry)1287 kg (2837 lb)
Oil System Capacity43L
Torque Range1850-2050 lb-ft
Horsepower500-600 HP


The DD16 is fitted to the Western Star 48X and 49X.