This mod contains the Paccar MX-13 engines, where most of the sounds are originally from the DAF XF truck from Euro Truck Simulator 2 and the audios of the Paccar engine package released by Kapitan Kriechbaum in 2016, with environment adaptation for American Truck Simulator for the greatest possible realism.

The engines they contain are:

MX Series standard

-MX-13 405 HP

-MX-13 430 HP

-MX-13 455 HP

-MX-13 485 HP

-MX-13 510 HP

MX Series MT

-MX-13 MT 430 HP

-MX-13 MT 455 HP

It includes sound effects such as low air pressure, windshield wipers, turn signals, and air brakes.

They are adapted to the following trucks:

Peterbilt:

-387 (Ch_Vitalik)

-386 (R.Modjeski)

-389 (SCS)

-579 (SCS)

-579 NG (HKV Studios/FranckPeru)

Kenworth:

-T680 (SCS)

-T680 100th Anniversary (SCS)

-T680 NG (Warryor3d)

-T880 (FranckPeru/Galimim)

-W990 (FranckPeru/Harven)

Note: Added 5 Eaton Fuller transmissions for more variety for the Kenworth T680 100th Anniversary truck.