I think the fitting is 3/8 nominal size. But it is the same one as on my 4600. ( PN AM105466) It is a Parker series 60 hydraulic coupler. It is set up with staight thread "O" ring style, not pipe thread. I think it is t-8 thread, which is a nominal 1/2"ID ( the number being the nominal 1/16 ths ). Even when you know it is better to have the piece in front of you. These are NOT compatable with the 1/2" pioneer fitting that are used on the power beyond. Each manufacturer of the fittings has thier own "style" . Only a few work with each other. Why different vendors for different parts of the hyraulics I will never know ( Low bid of the day ??). I needed to find a parker store to get the fittings, the dealer was no help in setting up tractor implement hydralics- must be hard to find good help- or too expensive. They just wanted part #s. If they could help I would have bought them with the JD markup! So I figured out what I needed past the deere quick couplings. I can get the parker part # off the male fitting I bought for various uses that hook into the front and the rear remotes. I stayed with the deere fittings, because 1)I want it easy to service, and 2) parker is a better brand than pioneer ( IMHO ). Go to the parker website, there may be a parker store near you. There are so many products that it is hard to find the right website. I just looked up the catalog lets see if I can LINK to parker The fittings I got are H3-63-T8 this is the 3/4" OD straight thread O ring style to the hose or hard pipe. The other style available is the 3/8" NPT. Looking at the catalog will keep yo busy, I hope it helped.
I think the fitting is 3/8 nominal size. But it is the same one as on my 4600. ( PN AM105466) It is a Parker series 60 hydraulic coupler. It is set up with staight thread "O" ring style, not pipe thread. I think it is t-8 thread, which is a nominal 1/2"ID ( the number being the nominal 1/16 ths ). Even when you know it is better to have the piece in front of you. These are NOT compatable with the 1/2" pioneer fitting that are used on the power beyond. Each manufacturer of the fittings has thier own "style" . Only a few work with each other. Why different vendors for different parts of the hyraulics I will never know ( Low bid of the day ??). I needed to find a parker store to get the fittings, the dealer was no help in setting up tractor implement hydralics- must be hard to find good help- or too expensive. They just wanted part #s. If they could help I would have bought them with the JD markup! So I figured out what I needed past the deere quick couplings. I can get the parker part # off the male fitting I bought for various uses that hook into the front and the rear remotes. I stayed with the deere fittings, because 1)I want it easy to service, and 2) parker is a better brand than pioneer ( IMHO ). Go to the parker website, there may be a parker store near you. There are so many products that it is hard to find the right website. I just looked up the catalog lets see if I can LINK to parker The fittings I got are H3-63-T8 this is the 3/4" OD straight thread O ring style to the hose or hard pipe. The other style available is the 3/8" NPT. Looking at the catalog will keep yo busy, I hope it helped.