Yup. I have one at the shop and measured them side by side. You can even put them against each other to see that the radiator hose diameter is identical, and the head openings are also identical. The only differences are when you take them apart, the internal hole is quite a bit larger. I will take pics tomorrow so you can see they are exactly the same as far as IN/OUT. You cant mix and match them like I thought because of the halves being different, other than that. Pics tomorrow afternoon!