can swap ar49900 for ar51748

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Shadow717
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can swap ar49900 for ar51748

Post by Shadow717 » Mon Oct 03, 2022 4:39 pm

Working on rebuilding the 4219 turbo engine from a jd 450b. I have a newly rebuilt ar49900 injector pump and would like to know if I can swap it for the ar51748?

Both are at 2500

Thank you in advance!

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77 Ford
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Re: can swap ar49900 for ar51748

Post by 77 Ford » Tue Oct 04, 2022 6:47 am

You could have your correct OEM pump rebuilt for less, that is what I would do. Those pumps are fairly specific and I think swapping part numbers would be a bad idea unless JD tells you it's an obsolete part number that has been replaced with the other number.
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78turbo
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Re: can swap ar49900 for ar51748

Post by 78turbo » Tue Oct 04, 2022 9:26 am

It does appear that you can use either one. A quick search shows that the AR51748 is an alternate number for the AR49900 as a replacement.
Here is the specs for both.

https://stanadyne.com/dealerportal/ssi/ ... /02409.pdf
https://stanadyne.com/dealerportal/ssi/ ... /02802.pdf

I hope I can link to these without breaking any rules.

Shadow717
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Re: can swap ar49900 for ar51748

Post by Shadow717 » Tue Oct 04, 2022 11:14 am

Thank you very much for this information!

The ar49900 I have is fresh rebuilt so I will put that on and try it out.

Thank you again!

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