B2920 Hydraulic connectors leak looking for best replacement

justlooney

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Equipment
B2920 MMM Back-Hoe Loader
Jan 28, 2011
8
0
1
Manassas, Virginia
I have a 2010 B2920 with FEL 364 and BH65. The hydraulic connectors have been replaced twice because of really bad leaking. They are now leaking again. Thinking about trying flat face hydraulic connectors to see if they are any better. I do wipe connections before assembly but the connectors seem to fail fairly quickly. I install and remove the FEL about once a month and the BH once a year or so. Kubota dealer just says yeah they fail and will sell me new replacement for what I already have. this does not seem to be the answer I am looking for. Any one know which company makes a better coupler. Thanks in advance.:)
 

North Idaho Wolfman

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I use flat face couplers and haven't had one fail me yet.
But then again I haven't had many of the AG couplers go "bad" either.
 

BAP

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2012 Kubota 2920, 60MMM, FEL, BH65 48" Bush Hog, 60"Backblade, B2782B Snowblower
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What size coupler does it take to replace these with? Are the pipes regular NPT?
 

justlooney

New member

Equipment
B2920 MMM Back-Hoe Loader
Jan 28, 2011
8
0
1
Manassas, Virginia
I plan on going to the Kubota dealer and purchasing again the connectors (1 of each type) to use as size measure. I know they are NPT and the hose has printed on it 3/8 . 3000 PSI so I think it would be 3/8 inch flat faced connector. I will make sure by purchase and measure. Any idea which brand is better. ????
 

MtnViewRanch

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Oct 10, 2012
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Lakeside Ca.
What about just changing the O-ring in the female couplers? Use a good quality O-ring and all should be good. The OEM stuff is probably at the lower end of the scale. The shipping will cost you more than what the O-rings cost. I'm sure that your total cost would be under $10 for all of your fittings.
 

Ben S

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B2620 FEL MMM mcconell swingtrim
Jan 17, 2015
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Holland
What about just changing the O-ring in the female couplers? Use a good quality O-ring and all should be good. The OEM stuff is probably at the lower end of the scale. The shipping will cost you more than what the O-rings cost. I'm sure that your total cost would be under $10 for all of your fittings.
Do you know the part numbers or the size of these O-rings?
My B2620 has the same problem.
Thanks
 

fast*st

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Jun 26, 2012
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I don't know the size offhand, the typical kit doesn't have it but tractor supply sells them in bags of 10.
 

justlooney

New member

Equipment
B2920 MMM Back-Hoe Loader
Jan 28, 2011
8
0
1
Manassas, Virginia
Hi went to Kubota dealer and purchased coupler set (male and female) 29.95 per set. Measured them and they a 1/4 inch 18 NPT I also found 1/4 NPT Flat Face couplers 60.00 per set on EBay. I purchased 3/8 TO 1/4 inch adapters from McMaster-Carr online, for 3.75 each, and then purchased 3/8 Flat Face couplers per set 16.00, I have not received anything yet, but will let you know if they work.
 
Last edited by a moderator:

justlooney

New member

Equipment
B2920 MMM Back-Hoe Loader
Jan 28, 2011
8
0
1
Manassas, Virginia
First off the 3/8 flat face hose connections were 4 1/4 inches long connected together and 1 1/4 inches in diameter. So I purchased from reliableaftermarketparts.com 1/4 inch 18 NPT thread flat face hydraulic connector sets (male - female) for 60.00 each these are very close to the original size hydraulic connectors that come with the B2920
 

Rusty1959

New member

Equipment
Kubota tractor b2920
Jan 24, 2021
6
0
1
Wisconsin
I have a 2010 B2920 with FEL 364 and BH65. The hydraulic connectors have been replaced twice because of really bad leaking. They are now leaking again. Thinking about trying flat face hydraulic connectors to see if they are any better. I do wipe connections before assembly but the connectors seem to fail fairly quickly. I install and remove the FEL about once a month and the BH once a year or so. Kubota dealer just says yeah they fail and will sell me new replacement for what I already have. this does not seem to be the answer I am looking for. Any one know which company makes a better coupler. Thanks in advance.:)
Ya Ihave 275 hours on already a rear seal ,!! Not good time for a John Deere
 

RCW

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BX2360, FEL, MMM, BX2750D snowblower. 1953 Minneapolis Moline ZAU
Apr 28, 2013
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Ya Ihave 275 hours on already a rear seal ,!! Not good time for a John Deere
Wow - you're a busy person.....this is 3 replies in 3 different sections....

I don't think flat-faced hydraulic connectors have anything to do with your issue...

Your first post was a rear tire leaking hydraulic fluid....

First, give us more information to help figure out what your problem is... Pictures would help greatly.

Once that's done, get a workshop manual. It will help you fix it.

Trust me, there's a lot of smart guys here that can help....just give us something to work with....

I've said that 3 times now too.
 
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RCW

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BX2360, FEL, MMM, BX2750D snowblower. 1953 Minneapolis Moline ZAU
Apr 28, 2013
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Chenango County, NY
deleted - - duplicated prior post somehow..... :rolleyes: