New MX4900 new 3rd function what size flat face couplers?

[TBD]

The dealer installed a 3rd function on my new MX 4900. It came with flat face couplers at the front to plug in my attachments. I am assuming those couplers are better than the old style.
I need to change my grapple and other attachments to flat face couplers. But I am getting conflicting information on the size. I looked up a parts schematic and it calls the couplers that came with the 3rd function kit 1/2". When I measure the OD of the male coupler, it indicates it is a 3/8" coupler. (It measure 3/4" or .78" which is a 3/8" coupler according to the flat face coupler charts).

Does anyone know for sure what that flat face coupler size is?

Thank you,

 

[North Idaho Wolfman]

Read the number on the coupler.
That will tell you the size.

 

[TBD]

Thanks, I did some careful reading of the couplers with a flashlight. I think I have the correct thing ordered. They are definitely 3/8" but the parts list says 1/2"