In this up-close video look at Volvo Trucks' new D13 engine, engineered to meet the Environmental Protection Agency's 2027 NOx and particulate matter emissions regs, Overdrive sister publication CCJ's Jason Cannon and Volvo's Duane Tegels chart the specs and changes from recent designs:
- The D13 will be available starting the first of 2027 with 405-500 hp and 1,450-1,950 lb.-ft. torque.
- A number of mods to the engine itself, detailed by Tegels in the video, allow Volvo to meet the 83% NOx and 50% particulate reduction required by EPA.
- Mods aren't expected to sacrifice fuel economy or consume more DEF for most OTR applications, and could provide as much as a 4% MPG gain in some regional and/or vocational applications.
- New aftertreatment equipment, including an exhaust-gas pre-heater and another heater before the selective catalytic reduction takes place, will take up roughly the same amount of frame-rail space as in prior generations.
Shifts in design approach to the aftertreatment and power systems to reduce parasitic losses, among other changes, will allow operators of current-generation Volvo engines to "have the same efficiency" with this one, Tegels noted. Some vocational/regional operators could see gains with a new approach to the turbo.
The new D13 is also equipped with a more efficient swing blade turbo, which will replace the turbo compounded model.
And "make sure your seatbelt's buckled on this one," said Tegels, pointing to the "pre-turbine throttle, essentially two restriction plates that move back and forth giving us 630 [engine] braking horsepower."
Catch all the details in the video at the top.
[Related: First up-close look at the new Cummins X15, equipped with EPA 2027 aftertreatment]
