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d17 hydraulic plug- where to find part?
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muck7898 View Drop Down
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Joined: 15 Jul 2026
Location: Indiana
Points: 5 		Post Options Post Options   Thanks (0) Thanks(0)   Quote muck7898 Quote  Post ReplyReply Direct Link To This Post Topic: d17 hydraulic plug- where to find part?
    Posted: 15 Jul 2026 at 12:45pm
New member here trying to get a tractor ready to square bale some hay. I have a series 4 D17 and am in need of Agco Part# 70229579 plug. I found the part number from a post by forum member Saubz back in 2020. His post showed a picture of where the plug goes and even included part number. I just am not having luck finding one online. does anyone have a recommendation?

Thank you, 
Adam
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muck7898 View Drop Down
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Joined: 15 Jul 2026
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Points: 5 		Post Options Post Options   Thanks (0) Thanks(0)   Quote muck7898 Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jul 2026 at 1:07pm
Also to update: I called a dealership and they looked up the part number for me. They said it is no longer available.
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8070nc View Drop Down
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Joined: 21 Mar 2019
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Points: 898 		Post Options Post Options   Thanks (0) Thanks(0)   Quote 8070nc Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jul 2026 at 1:16pm
What does it do and what makes it special
1984 80780
1957 D14
DES 300 with 25000 engine
616 tractor
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
Location: illinois
Points: 93064 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jul 2026 at 1:19pm
i dont think there are any threads in that hole ??  Seems like it is similar to a FREEZE PLUG that you pound in a hole to seal it up ???

You should be able to use a GENERIC plug if you measure the ID of the hole..does it look something like this ??? you would need to check the RIGHT DIAMETER...




Edited by steve(ill) - 15 Jul 2026 at 1:25pm
Like them all, but love the "B"s.
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muck7898 View Drop Down
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Points: 5 		Post Options Post Options   Thanks (0) Thanks(0)   Quote muck7898 Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jul 2026 at 1:24pm
The plug keeps it from leaking hydraulic oil. There are no threads in there and I am starting to think the answer of finding a generic plug like a freeze plug and driving it in seems to be the fix. I think Napa has something I can use.
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steve(ill) View Drop Down
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Joined: 11 Sep 2009
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Points: 93064 		Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jul 2026 at 1:30pm
DORMAN part numbers available at NAPA.... just match the HOLE SIZE
Like them all, but love the "B"s.
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Points: 5 		Post Options Post Options   Thanks (0) Thanks(0)   Quote muck7898 Quote  Post ReplyReply Direct Link To This Post Posted: 15 Jul 2026 at 1:34pm
Thank you Steve!
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