4DNX Pumps

The 4DNX series of pumps consists of 2 pumps:

4DNX25GSI: 3000 PSI, 2.5 GPM
4DNX27GSI: 3000 PSI, 2.7 GPM

These two pumps are very similar, there are only a few differences. But you should refer to the parts breakdown for information on your specific pump (see link below).

Looking to repair your 2DX pump? Here is some information you might find useful.
If you don't have one, here is a breakdown diagram for the 4DNX pumps.
Start with figuring out the issue you are having. Click here to see our Troubleshooting Guide for this pump.

Below are some step-by-step repair guides for common repairs on 4DNX pumps:
Valve Replacement
Seal Replacement

If you have any questions about your pump, don't hesitate to contact us. If it's after hours or you don't get someone right away, leave us a message and we'll get back to you as soon as we can.

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