Which engine is this I need to buy radiator hoses

[serpico760]

This is the 1981 m813 my buddy and I are working on so he can move it to Montana. I'm not exactly sure which motor this is and I need to buy some radiator hoses so if any of y'all can identify it and also if anybody has cooling system parts for sale. I'm not exactly near this truck and I thought it was a Cummins multi-fuel but boice equipment for example has radiator hoses for the Cummins or for the multi fuel so I'm a little confused maybe it's a continental.

 

[juanprado]

Looks like a cummins nhc250 which is diesel not multi fuel

 

[serpico760]

Looks like a cummins nhc250 which is diesel not multi fuel

Thank you sir for the information