IH 2504 12 or 17 gpm pump?

ja1724 · Jun 6, 2013

How can I tell if my 2504 has the 12 or 17gpm pump?

Thanks.

Weldon K · Jun 6, 2013

Serial number suffix letters ( such as 12345 SY )

S = Torque Amplifier

Y = 12 gpm pump
Z = 17 gpm
FF = 4.5 gpm
GG = 7.0 gpm

mkirsch · Jun 7, 2013

Of course, that assumes that the pump was never-ever changed in the tractor, and "upgraded" to a 17GPM.

I suspect the only way to truly know is to have it flow rated, or pull the pump and look at the part number....

ja1724 · Jun 7, 2013

(quoted from post at 22:47:25 06/06/13) Serial number suffix letters ( such as 12345 SY )

S = Torque Amplifier

Y = 12 gpm pump
Z = 17 gpm
FF = 4.5 gpm
GG = 7.0 gpm

Thanks Weldon. My serial is followed by S-Y so I am going to assume for now that it is the 12gpm pump.

Paul Van Benschoten · Jul 15, 2013

S = Torque Amplifier

Y = 12 gpm pump
Z = 17 gpm
FF = 4.5 gpm
GG = 7.0 gpm

So, my new-to-me 504 has S Y-FF. Are there two pumps?

I have ordered the owners manual and shop manuals, but they haven't gotten to me yet. I hope they will explain all of this :lol: [/quote]

IH fan · Jul 15, 2013

(quoted from post at 06:00:50 07/15/13)

S = Torque Amplifier

Y = 12 gpm pump
Z = 17 gpm
FF = 4.5 gpm
GG = 7.0 gpm

Click to expand...

So, my new-to-me 504 has S Y-FF. Are there two pumps?

I have ordered the owners manual and shop manuals, but they haven't gotten to me yet. I hope they will explain all of this :lol:

/quote]

I have the I&T IH-201 manual and it shows with draft and position controls and power steering there are two pumps. Some use a flow divider for the PS and some do not have PS.
Pumps could be either Cessna or Thompson.

IH 2504 12 or 17 gpm pump?

ja1724

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Weldon K

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mkirsch

Well-known Member

ja1724

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Paul Van Benschoten

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IH fan

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