6.7 Cummins Engine Soundboard

Published 2023-11-10

The Thomas C2 school bus picture I used belongs to Thomas Built Buses.

I recorded all the sounds.

Btw if you've ever wondered what that loud thump noise was when a school bus (usually with these engines) changes gears after accelerating, that was the torque lock converter (from what I was told). I asked somebody on a back seat ride video they posted of a school bus with this engine once and then that's what somebody in the comments told me. I actually like that sound though.

All of these except the Cummins B6.7 idle were recorded off of C2s (the B6.7 idle was recorded off a CE with its hood open while I was recording a video of its engine idling).