Cummins Big Cam

Now updated to 1.58

Last Update Feb 10, 2026

Step back into the golden era of diesel power with the Cummins Big Cam series (I–IV) brought to life in American Truck Simulator . Using multipoint synchronous recording , every distinct tone of these legendary engines has been preserved — from the signature lope at idle to the raw, mechanical bark when the throttle is buried.

This mod doesn’t just sound like a Big Cam — it feels like one: