Would greatly appreciate some help.
I am trying to identify a diesel engine I have, that was taken out of a Toro 6700d golf course reel mower.
It is a 4 cylinder Peugeot diesel
The I'd plates read:

There is another plate with:

I do not know the year of the mower, but I do know there were 2 different size peugeot diesels used a 42 hp, and a 55 hp 1.9 liter
Can someone please help I'd this motor, I have done many searches on net and cannot come up with those I'd tags.