Cat C15 MXS engine pack

Now updated to 1.59+

Last Update on May, 2026

Experience the brute force and unmistakable growl of the Caterpillar C15 MXS with this high-fidelity sound mod for American Truck Simulator . Recorded using professional multipoint synchronous techniques , every stage of the powerband has been faithfully captured — from the low-end rumble under light throttle to the hard pull at wide-open throttle.

This isn’t just sound, it’s a full replication of how the C15 MXS behaves on the road: