ST30 replacement hose part number

jgt11

New member

Equipment
Kubota ST30
Mar 8, 2026
9
4
3
Wales
Hi Guys.
I'm in Wales, west side of the UK.
I have an ST30 with front loader which I've had for about 3 years.
I had a hose start leaking yesterday and it appears to be the return on the power beyond circuit.
I've read a little to identify it to find a part number but had no luck, even from my Kubota dealer.
The hose runs from under the seat to the rear and I've accessed it by removing the right hand rear wheel (from rear of tractor) and a metal panel.
The hose has a straight connector on one end and a 90 degree on the other with blue tape on both ends.
I believe it's the PB hose?
Does anyone know the part number or is it a case of getting one made up?
I've attached pictures of the hose and fittings.
Many thanks in advance.
James IMG_8414a.jpg IMG_8416a.jpg IMG_8410a.jpg IMG_8411a.jpg IMG_2247.JPG
 
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North Idaho Wolfman

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SORRY ABOUT REPEAT PICTURES, NOT SURE WHY THAT HAPPENED?
Fixed it:

For the hydaulic hose find a local hydralic shop to make you a new hose.
That's not a Kubota hose as most of the loaders and plumbing for the loader in your country were made by a third party.
 
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jgt11

New member

Equipment
Kubota ST30
Mar 8, 2026
9
4
3
Wales
I thought that would be the case, many thanks for your input.
James.
 
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jgt11

New member

Equipment
Kubota ST30
Mar 8, 2026
9
4
3
Wales
Just for information, my Kubota dealer found me one, £115 + 20% vat…
Went to a local engineering unit, £25 Cash to make one…
Guess which one I bought 😁
 
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jgt11

New member

Equipment
Kubota ST30
Mar 8, 2026
9
4
3
Wales
Hopefully genuine Kubota - desigbed specigically for the requirements of your tractor. :devilish:
Of course it’s not because it not a Kubota part, it’s a third party add on.
My Kubota dealer was probably going to have one made.
 
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North Idaho Wolfman

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L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
Jun 9, 2013
35,189
10,397
113
Sandpoint, ID
Of course it’s not because it not a Kubota part, it’s a third party add on.
My Kubota dealer was probably going to have one made.
Just curious:
Do you have a model number on the loader?
 

jgt11

New member

Equipment
Kubota ST30
Mar 8, 2026
9
4
3
Wales
IMG_8458.jpeg Hi again, all working great again now. Quick question, there is a lever on the valve block at the rear of the machine, what does it do lol?
 

TheOldHokie

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windyridgefarm.us
View attachment 172364 Hi again, all working great again now. Quick question, there is a lever on the valve block at the rear of the machine, what does it do lol?
My WAG is it toggles valve between single and double acting but thats pure speculation. Time to read your operator's manual.

Dan
 

jgt11

New member

Equipment
Kubota ST30
Mar 8, 2026
9
4
3
Wales
Thanks, that’s my thought too.
As to the manual, it’s a 3rd party add on so no mention in any manual can find.
 

jgt11

New member

Equipment
Kubota ST30
Mar 8, 2026
9
4
3
Wales
Yes, I will when I get some time.
I was speculating that someone here might be more definitive.
 

jgt11

New member

Equipment
Kubota ST30
Mar 8, 2026
9
4
3
Wales
Yes, I know.
I’m led to believe that this Kubota was built in Japan, assembled in North America then shipped to Europe and shares common parts. The valve in question is manufactured by a US company.
 

TheOldHokie

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L3901/LA525, G2160/RCK60, G2460/RCK60
Apr 6, 2021
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windyridgefarm.us
Yes, I know.
I’m led to believe that this Kubota was built in Japan, assembled in North America then shipped to Europe and shares common parts. The valve in question is manufactured by a US company.
Thats nice to know but it doesnt help answer your question. Whats the make and model number on the valve?

Dan