B1620 loader hydraulic hoses: PN 70050-01553 discontinued??

TerryKing

Active member
Lifetime Member

Equipment
B7100HST-D
Aug 18, 2024
153
94
28
84
Topsham, Vermont USA
arduinoinfo.mywikis.net
Hi Everyone, K_Newbie here but have some background.

Just bought a used B7100HST-D tractor with a B1620 loader. Right off one of the hoses from the single arm control blew.. Now I cant even run the engine :-(

The Kubota docs show the hose (4 of them) as #70050-01553 . On Kubotabuy, Messicks , etc it shown as discontinued.

This is not an unusual hose I think. What is a replacement I can use????

THANKS! I'll post whatever I find...

Regards, Terry King
...In The Woods In Vermont and On The Nile in Egypt
The one who dies with the most Parts LOSES! WHAT DO YOU NEED??
 

Grandad4

Active member

Equipment
1949 Farmall M, previously owned: L 4610, BX 2230
Apr 5, 2016
331
85
28
Greensboro, NC
What Dustball said! Hydraulic lines on equipment like yours generally use commonly available hoses and fittings that can be readily matched locally. Hydraulic supply/repair places are ideal, even truck repair and auto parts places can often make up suitable replacement hoses.
 

PoTreeBoy

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L35 Ford 3930
Mar 24, 2020
2,828
1,544
113
WestTn/NoMs
If you live in a hydraulic desert like I do you have two choices
*Quick and dirty - buy a hose and adapters at Tractor Supply. TSC sells hoses in fixed lengths with NPT ends. The B will have either 1/4" or 3/8" diameter hoses with, probably, 37° JIC ends. Buy an adapter from NPT to JIC for each end and a hose of adequate length. This won't look too great but it'll work until you can do a permanent fix. And you have it for a future emergency repair, maybe by buying different adapters.
*Permanent but takes longer - I recommend Discount Hydraulic Hose, but there are other on-line sellers. DHH has references to identify fitting sizes and types of end fittings, and how to measure the length. I've found fine thread SAE bolts to be good gauges for JIC ends. You may want to order any suspect hoses, since the shipping cost for one hose can be expensive.

I'll look up your part number and see if a picture helps, and edit this post if so.

OK there's a picture on Messick's and info at Kubota. Appears to be 3/8" hose, I like the 100R16. One end appears to be a #6 JIC straight female swivel. If so a 9/16-18 bolt will fit. The other end appears to be a male thread, can't tell with the thread protector. If the threads are tapered, they're most likely NPT and a TSC hose should screw right in. If it's a straight (parallel) thread, it may be ORB, the male end will have an o-ring on it. Check all measurements and good luck.
.
 
Last edited:

InTheWoods

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Premium Member

Equipment
B7510/FEL, B7100D, ZD18, ASK-R130
Nov 17, 2023
156
100
43
Indiana
...This is not an unusual hose I think. What is a replacement I can use????
It ain't rocket science. Time to do a little learning. Check these guys.

They're pretty fast, make decent hoses, and will probably have exactly what you need. They have for my FEL.


Here's what I bought - no idea if yours are similar.

1724037932319.png
 
Last edited:

TerryKing

Active member
Lifetime Member

Equipment
B7100HST-D
Aug 18, 2024
153
94
28
84
Topsham, Vermont USA
arduinoinfo.mywikis.net
It ain't rocket science. Time to do a little learning. Check these guys.

They're pretty fast, make decent hoses, and will probably have exactly what you need. They have for my FEL.


Here's what I bought - no idea if yours are similar.

View attachment 135281
Hi Everyone, K_Newbie here but have some background.

Just bought a used B7100HST-D tractor with a B1620 loader. Right off one of the hoses from the single arm control blew.. Now I cant even run the engine :-(

The Kubota docs show the hose (4 of them) as #70050-01553 . On Kubotabuy, Messicks , etc it shown as discontinued.

This is not an unusual hose I think. What is a replacement I can use????

THANKS! I'll post whatever I find...

Regards, Terry King
...In The Woods In Vermont and On The Nile in Egypt
The one who dies with the most Parts LOSES! WHAT DO YOU NEED??
THANKS!!! You guys are fantastic..

My Hydraulic Education is well underway.. I want to understand this, not just have some place charge me for knowledge. I'll be at Tractor Supply this morning..

I will try to Post stuff that I learn that might be helpful, like how to check if glow plugs are drawing current without disconnecting them.

Regards, Terry King
...In The Woods In Vermont and On The Nile in Egypt
The one who dies with the most Parts LOSES! WHAT DO YOU NEED??
 

InTheWoods

Active member
Premium Member

Equipment
B7510/FEL, B7100D, ZD18, ASK-R130
Nov 17, 2023
156
100
43
Indiana
...I'll be at Tractor Supply this morning...
Good place to start, but don't necessarily settle for what they stock. Take the time to study the site I showed. There are a lot of options, and it's worth ordering exactly what you need.
 

TerryKing

Active member
Lifetime Member

Equipment
B7100HST-D
Aug 18, 2024
153
94
28
84
Topsham, Vermont USA
arduinoinfo.mywikis.net
Good place to start, but don't necessarily settle for what they stock. Take the time to study the site I showed. There are a lot of options, and it's worth ordering exactly what you need.
Good place to start, but don't necessarily settle for what they stock. Take the time to study the site I showed. There are a lot of options, and it's worth ordering exactly what you need.
InTheWoods .. So right .. TS didn't have much at all.
I'll try to get Discount to confirm the right connectors and order today...

Hey, you almost took my sig :) I've used it since 1978. But I'm almost definitely older than you ..

WHERE do I add a sig??
Thanks!
Regards, Terry King
...In The Woods In Vermont
 

PoTreeBoy

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Lifetime Member

Equipment
L35 Ford 3930
Mar 24, 2020
2,828
1,544
113
WestTn/NoMs
InTheWoods .. So right .. TS didn't have much at all.
I'll try to get Discount to confirm the right connectors and order today...

Hey, you almost took my sig :) I've used it since 1978. But I'm almost definitely older than you ..

WHERE do I add a sig??
Thanks!
Regards, Terry King
...In The Woods In Vermont
Just got the last hose I ordered from DHH. With a little luck, this will finish up my permanent 3rd function plumbing and allow me to hook up my tree puller.

IMG_20240819_140736045.jpg
 

TheOldHokie

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Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Apr 6, 2021
8,928
4,668
113
Myersville, MD
windyridgefarm.us
Hi Everyone, K_Newbie here but have some background.

Just bought a used B7100HST-D tractor with a B1620 loader. Right off one of the hoses from the single arm control blew.. Now I cant even run the engine :-(

The Kubota docs show the hose (4 of them) as #70050-01553 . On Kubotabuy, Messicks , etc it shown as discontinued.

This is not an unusual hose I think. What is a replacement I can use????

THANKS! I'll post whatever I find...

Regards, Terry King
...In The Woods In Vermont and On The Nile in Egypt
The one who dies with the most Parts LOSES! WHAT DO YOU NEED??
I have owned one of those loaders for 30 years, They are ordinary 3/8" two wire hydraulic hose and as easy as it gets to replace. Measure the lengths and order replacements from Surplus Center. Far and away the least expensive source going.

IIRC a 24" hose works just about everywhere. Buy the hoses with female JIC-6 swivel ends and as many 3/8 male NPT to male JIC-6 adapters as needed to hook them up. Should need one adapter per hose.



Dan
 
Last edited:

TheOldHokie

Well-known member
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Equipment
L3901/LA525, B7200DT/B1630, G2160/RCK60, G2460/RCK60
Apr 6, 2021
8,928
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113
Myersville, MD
windyridgefarm.us
If you live in a hydraulic desert like I do you have two choices
*Quick and dirty - buy a hose and adapters at Tractor Supply. TSC sells hoses in fixed lengths with NPT ends. The B will have either 1/4" or 3/8" diameter hoses with, probably, 37° JIC ends. Buy an adapter from NPT to JIC for each end and a hose of adequate length. This won't look too great but it'll work until you can do a permanent fix. And you have it for a future emergency repair, maybe by buying different adapters.
*Permanent but takes longer - I recommend Discount Hydraulic Hose, but there are other on-line sellers. DHH has references to identify fitting sizes and types of end fittings, and how to measure the length. I've found fine thread SAE bolts to be good gauges for JIC ends. You may want to order any suspect hoses, since the shipping cost for one hose can be expensive.

I'll look up your part number and see if a picture helps, and edit this post if so.

OK there's a picture on Messick's and info at Kubota. Appears to be 3/8" hose, I like the 100R16. One end appears to be a #6 JIC straight female swivel. If so a 9/16-18 bolt will fit. The other end appears to be a male thread, can't tell with the thread protector. If the threads are tapered, they're most likely NPT and a TSC hose should screw right in. If it's a straight (parallel) thread, it may be ORB, the male end will have an o-ring on it. Check all measurements and good luck.
.
If you live in a hydraulic desert like I do you have two choices
*Quick and dirty - buy a hose and adapters at Tractor Supply. TSC sells hoses in fixed lengths with NPT ends. The B will have either 1/4" or 3/8" diameter hoses with, probably, 37° JIC ends. Buy an adapter from NPT to JIC for each end and a hose of adequate length. This won't look too great but it'll work until you can do a permanent fix. And you have it for a future emergency repair, maybe by buying different adapters.
*Permanent but takes longer - I recommend Discount Hydraulic Hose, but there are other on-line sellers. DHH has references to identify fitting sizes and types of end fittings, and how to measure the length. I've found fine thread SAE bolts to be good gauges for JIC ends. You may want to order any suspect hoses, since the shipping cost for one hose can be expensive.

I'll look up your part number and see if a picture helps, and edit this post if so.

OK there's a picture on Messick's and info at Kubota. Appears to be 3/8" hose, I like the 100R16. One end appears to be a #6 JIC straight female swivel. If so a 9/16-18 bolt will fit. The other end appears to be a male thread, can't tell with the thread protector. If the threads are tapered, they're most likely NPT and a TSC hose should screw right in. If it's a straight (parallel) thread, it may be ORB, the male end will have an o-ring on it. Check all measurements and good luck.
.
The B1620 loader uses 3/8 hose but 1/4" is all thats really needed.

The valve end is a JIC-6 female swivel.
The tube ends are 3/8" male NPT

See my earlier response for my take on buying replacement hoses.

Dan
 
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TerryKing

Active member
Lifetime Member

Equipment
B7100HST-D
Aug 18, 2024
153
94
28
84
Topsham, Vermont USA
arduinoinfo.mywikis.net
The B1620 loader uses 3/8 hose but 1/4" is all thats really needed.

The valve end is a JIC-6 female swivel.
The tube ends are 3/8" male NPT

See my earlier response for my take on buying replacement hoses.

Dan
Hokie, THANKS!! Just what I needed. I am beginning to understand this stuff.. When I worked on complicated Engineering stuff, often TERMINOLOGY was the key to get started..

Changing oil today and may actually get to drive this thing.

OTHER: Where the heck do I put in my SIG?? Or maybe Newbies have limitations??

Regards, Terry King
...In The Woods In Vermont and On The Nile in Egypt
The one who dies with the most Parts LOSES! WHAT DO YOU NEED??
 

TerryKing

Active member
Lifetime Member

Equipment
B7100HST-D
Aug 18, 2024
153
94
28
84
Topsham, Vermont USA
arduinoinfo.mywikis.net
Many THANKS to all you guys!!

Had to replace all 4 of the control-to-loaderFrame hoses..

NOW the engine starts and runs sweet, the loader actions are what I expect, and I got to finally DRIVE the thing around the driveway! And I understand the connectors and the variations.

I THINK I should adjust that one hose at the forward end to have it follow the curve of the others...

LoaderControlHoseLayout.JPG
 

PoTreeBoy

Well-known member
Lifetime Member

Equipment
L35 Ford 3930
Mar 24, 2020
2,828
1,544
113
WestTn/NoMs
Many THANKS to all you guys!!

Had to replace all 4 of the control-to-loaderFrame hoses..

NOW the engine starts and runs sweet, the loader actions are what I expect, and I got to finally DRIVE the thing around the driveway! And I understand the connectors and the variations.

I THINK I should adjust that one hose at the forward end to have it follow the curve of the others...

View attachment 135491
Looks good. Now fix your equipment list, D7100? :)
 

Russell King

Well-known member
Lifetime Member

Equipment
L185F, Modern Ag Competitor 4’ shredder, Rhino tiller, rear dirt scoop
Jun 17, 2012
5,409
1,442
113
Austin, Texas
Not that it is that important but they make hose covers and ties of various types to help manage and protect the hose (from sun and abrasions) and the user (From spray)

Here are examples of a few.

 

TerryKing

Active member
Lifetime Member

Equipment
B7100HST-D
Aug 18, 2024
153
94
28
84
Topsham, Vermont USA
arduinoinfo.mywikis.net
Not that it is that important but they make hose covers and ties of various types to help manage and protect the hose (from sun and abrasions) and the user (From spray)

Here are examples of a few.

Thanks Russell ! I'll get some. Regards, Terry (Just Another King)