Purchased d950 to replace my d650 have a couple questions about sensors and coolant flow

[Jjona5]

So my d650 does not have a water pump and the flow goes into a nipple on the lower part of the block. The d950 has a pump and it looks like it goes from the lower radiator connection to both the lower block and to the water pump. Curious if this is normal or a special situation for the mower the d950 came out of(vs say a b8200 tractor). Do I need to T into the radiator outlet or should this be rerouted somehow or plugged? Anyone with a b8200 would be helpful. Also on the top of the head is that the temp sensor and the back of the block the oil pressure sensor? Photos attached.

 

[North Idaho Wolfman]

Cap the small hose, you don't need it.
You will need to neck down your radiator to fit you smaller water hoses.
Yes the top of the head is temp and above starter is oil pressure.

 

[Jjona5]

Thank you

 

[PoTreeBoy]

Cap the small hose, you don't need it.
You will need to neck down your radiator to fit you smaller water hoses.
Yes the top of the head is temp and above starter is oil pressure.

@North Idaho Wolfman, I've wondered what that hose is for? Provision for oil cooler? It makes a convenient way to drain the radiator and block, but I doubt that's why it was provided.

 

[North Idaho Wolfman]

@North Idaho Wolfman, I've wondered what that hose is for? Provision for oil cooler? It makes a convenient way to drain the radiator and block, but I doubt that's why it was provided.

Radiator and block burp line.

 

[Jjona5]

Before I posted on here I was trying to find a radiator for the mower it came out of and it looks like they have a second small nipple on the bottom of the radiator for that hose.