My question is about Cummins Engine serial numbers. I yanked a 5.9 12 valve from a Blue Bird school bus for my RV convertion and the engine nameplate is missing. Normally, the name plate would be mounted to the timing housing. But, for whatever reason, mine is missing. There was a throttle linkage bracket attached to the engine that would have obscured view of anyways. But nonetheless, it wasn't there when I removed the bracket. I don't see the nameplate ANYWHERE on the engine and it's killing me to know what my engine is all about. My assumption is it's a 6BTAA-190, but I hate assuming. I do have the engine serial number and was wondering if there is a registry somewhere in the interzones that could give me the specs of this particular engine. According to the bus nameplate, the engine serial number is 44874434.
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