For sale is a Cummins engine. It is a four cylinder engine labeled L423D P 50049F, serial number 0053124085. According to this page that I pulled off the net, this engine is a 60 HP engine at 2600 RPM.
It came to me from a Great Lakes military base. It was in a sealed crate. The engine is used, but appears to not have signs of prolonged use (not too much soot in the exhaust manifold, a lot of original paint still there). There is some rust on the bare metal mating surface (where a shaft attaches to the engine flywheel).
Upon inspection, the engine was found to have the following:
Based on my experience with my Onan DJE Diesel Generator, I tried to start it as follows.
That got the engine started. It purred for about a minute "hunting" for a good speed. Finally it settled at some idle speed and ran.
On the videos, for some reason, the sound "cuts out" at some point during the video. It is the fault of my camera, the engine does not stop when you stop hearing sound.