Hydraulic coupler o ring

[powerkraut]

Looks like I buggered the o ring on one of my couplers, that hose leaks bad now. Is the o ring easily replaced or am I better off just getting a new female end?

 

[North Idaho Wolfman]

Looks like I buggered the o ring on one of my couplers, that hose leaks bad now. Is the o ring easily replaced or am I better off just getting a new female end?

Most are a simple fix, it's finding the right O-ring is the problem.

 

[NCL4701]

I’ve had to replace one of mine and it irritated me to replace the whole fitting when all it needed was an o-ring. After much searching, this is what I found for Pioneer couplers and it’s worked for me.

1/2” Pioneer: Size 117. Hardness 70A (medium)

3/8” Pioneer: Size 115. Hardness 70A (medium)

1/4” Pioneer: Size 113. Hardness 70A (medium)

Pioneer sizes weren’t intuitive to me. There are numerous size charts online. Example:
Flat face, I have no clue but looks like you’re dealing with Pioneer.

Edit: Should have stated material: Buna-N.

 

[powerkraut]

Thank you!

 

[powerkraut]

Ok, so they are snaptite 72 fittings and the pioneer o ring doesn't work. It looks like theres a nitrile and a delrin ring stacked on eachother. I'm having a hard time just finding a replacement coupler, let alone gaskets. Could anyone point me in the right direction?

 

[TheOldHokie]

Snaptite 72 series are ISO 7241B couplers. There are many sources - here is one:

Hydraulic ISO 7241-B Quick Couplers - Summit Hydraulics

Hydraulic ISO 7241-B Quick Couplers Steel Brass Stainless Steel - FREE SHIPPING

summit-hydraulics.com

Dan

 

[powerkraut]

Thank you, the current male looks a little different, it has a cylindrical nipple instead of the conical ones in your link, are they cross compatible? Sorry, truck brakes and power steering are my only previous hydraulic experience so I have no idea on terminology.

 

[TheOldHokie]

Thank you, the current male looks a little different, it has a cylindrical nipple instead of the conical ones in your link, are they cross compatible? Sorry, truck brakes and power steering are my only previous hydraulic experience so I have no idea on terminology.

Do you mean your couplers have a ball shaped poppet? If so, yes they interchange.

Dan

 

[powerkraut]

This little thing on the tip

 

[TheOldHokie]

This little thing on the tip
View attachment 154992

What little thkng? The movable piece on the end of the tip is the poppet.

Dan

 

[powerkraut]

Yup, ok, thanks. That's what I was talking about.