Turbo Housing ID

[MRandall]

Hey, fellas. How do you identify the size of your turbo housing? Can't find any stamp or casting to ID the cm. Thanks.

 

[Furthur]

Allegedly, most are easy to identify. The one on my truck, which was there when I bought it, aside from Holset, has 3521934, 18 D1, and 16 27 12 cast into it. I'm pretty sure it's a 16cm... but can't get anyone to tell me from the numbers. Sorry, I know that doesn't help. It should have something cast into the housing... post what it is. .



John

 

[sdstriper]

The only way I know to size the turbine housing is a number cast inside the exhaust runners, it is an inverted casting. A shop with access to Holsets info would maybe be able to tell you from the casting numbers on the outside of the housing.

 

[Greenleaf]

I have the part number list if anyone would like to know. I have been experimenting with different turbo housing and made up a list of size vs part number cast into the side of the housing.



I don't have one for the 14 but had one in my hand and never thought to write the casting number on my list.