For 1.40+ I have been asked for this many times, so today I give you my version of the Caterpillar C-15/6NZ. There is 7 engines from 335hp to 800hp. All are roughly priced to current prices that I could find. For best results, please refer to the volume levels pictured above, but generally having everything at 50% should work well. As with all my mods, the sounds are set for a full surround system in mind, 4.1 surround or better, and most likely will NOT sound correct with headphones. I have also adjusted levels based on the pic above, as well as being in cab, and not from 3rd person. My goal was to give an immersive experience with the sound from a drivers POV. Hopefully you feel I have achieved this. Also as the number of sounds increase, some modders have been having issues with sounds cutting out, or dropping. This is not the case with my mods. I have tested all my mods with multiple sound packs from Cipinho, along with train addon, weather addon, Boeing73Fly's immersion sound packs and the sound fix pack, with zero issues of sound cuts. Will work on the following trucks: ALL SCS Trucks Autocar AT by XBS Autocar DC by XBS Brockway by KSW Freightliner FLB by Harven Freightliner FLC by XBS Freightliner XL By John Ruda Kenworth K100-E by Overfloater Kenworth W900 by John Ruda Kenworth W900A by 4k Kenworth w900B by GTM Kenworth W990 by Harven Mack F700 by KSW Mack RS600 by Harven Peterbilt 352 by swumfanpage2017 Peterbilt 359 by RTA Peterbilt 359 by FLX Peterbilt 379 by Dom Pererbilt 379x by 4k Modding Peterbilt 389 by John Ruda Peterbilt 389 by Viper (Haterbilt works as well) Project 3xx by HFG(Guidot) Peterbilt 567 by GTM Scot A2HD by Smarty If you are enjoying my mods and would like to help out click here: https://www.paypal.com/paypalme/serialblack