Kubota B Series Hydraulic Couplers

[smallbota]

Just went through a lot of trouble to search and find the Hydraulic Quick Couplers that Kubota uses. They are Snap-Tite 72 Series ISO-B and Kubota uses 1/4" fittings on 3/8" hoses. I made the mistake of ordering all 3/8" fittings assuming they were the same size as the hoses...wrong! There are two good suppliers of these - Discount Hydraulic and eBay seller industrialsales791, here is his listing for 1/4 'B' series quick couplers: Hydraulic Quick Coupler Set ISO 7241 B 1 4" NPT Italian Import | eBay. He is great to work with and was patient with me switching from 3/8 to 1/4 and accepted returns on the 3/8" parts and sent 1/4" parts to replace them.

If you do any research here are the numbers: PBV06F-1/4NPT (these were on the hose ends of the Kubota front mount snow blower) and Snap-Tite 72C4-4F and 72N4-4F but they are almost impossible to find. The Italian parts from eBay are very nice and a set of male/female cost less than just the female Kubota part! Ordered two sets as I added a snow plow and Diverter Valve from Kenneth at BoltOnHooks.com and the new couplers run the hydraulic angle for the plow with the push of a button using joystick left/right. Great parts and great people to work with. Just today I had to remove the FEL to install the snow blower as we are supposed to get an 'Historic' Blizzard Tuesday. One of the couplers on the FEL was leaking and I lost about 8oz of fluid on the floor. So, I just ordered another set of couplers from Bill on eBay to replace the leaking female and will keep the male nipple as a spare. Hope you find this thread if you are going crazy (like I was) trying to find the right couplers for your B series.

 

[murphy1244]

Are those ISO 7241 series B disconnects?

 

[Capt Dan]

What year tractor do you have?

And what model of B?

I'm just wondering if my old B would be the same.

 

[smallbota]

I have a 2006 B3030 but these couplers fit most B series even the BX. If your coupler says Snap-Tite 72 Series these will work.

 

[smallbota]

Are those ISO 7241 series B disconnects?

Yes they are in 1/4" inch NPT threads. Even though the hoses are 3/8" on the FL, they have 1/4" threads. Most hoses have threads the same size as the hose but that's not how Kubota does it.

 

[bp fick]

ISO 7241 B Quick Couplers | Parker 60 Series, ISO B Quick Disconnects| Hydraulics Direct

Also available in brass, for an up-charge.

 

[smallbota]

So here's my Diverter Valve from BoltOnHooks. Top hoses are to Snow Plow angle via joystick left/right when you push the button to activate the solenoids. Next two hoses are to the FL tilt. Bottom hoses are from Kubota valve block left side top and bottom that the joystick left/right controls sent to the input of the diverter valve. Total cost for Valve Kit, fittings and hoses to the snow plow $400, less than half the cost of the $900 Kubota Third Valve Kit (plus another $300 for dealer install).

View attachment 408620

 

[rswyan]

Just went through a lot of trouble to search and find the Hydraulic Quick Couplers that Kubota uses. They are Snap-Tite 72 Series ISO-B and Kubota uses 1/4" fittings on 3/8" hoses.

Retarded ain't it ?

Hope you find this thread if you are going crazy (like I was) trying to find the right couplers for your B series.

I got sick of the dripping and leakage with that style quick coupler and just went ahead and converted (or am about to) everything over to Skid Steer Flush Face ISO 16028 quick couplers ... minimal fluid loss and generally easy to connect/disconnect.

If you've never used 'em, ya probably don't know what you're missin' ...