I crawled under my truck recently looked up and found under my oil filter there is a leak coming off a hose with two clamps. Traced it found out it goes to the turbo. I haven't taken it off so I don't know what size I need or what it is. If it is special hose or the length of the piece. I looked online found 3/4 7/8 silicon high temp you name it etc. can anyone help me out here thanks. 

7/8" I believe. CPP has it online

Thanks what's the 3/4 for then

When I did mine I got the gasket at the turbo to make it easier to change the hose.

 

That's actually not a bad idea. What size of hose was it when you changed it. 

7/8 and it's very hard to find locally. Online it's very expensive. 

Gotcha thanks I found it at a couple places CTCummins24V said cpp I found it on there website. They also have what cpp calls 3/4 drain hose anyone know what that's about 

Pretty sure the drain hose size is 7/8" ID,  that little hose that hooks the block to the metal turbo drain line. I tried 3/4" heater hose and it wouldn't fit.  You could try looking up the Cummins part # and see if there's a size description. Or take it off and measure.

I trust you guys I ordered from puredieselpower.com 7/8 hose. Thanks guys