3DNX Pumps

The 3DNX series of pumps was used on many pressure washers. This line of pumps is no longer made, but repair parts are available. The series consists of:
  • 3DNX25GSI: 2850 Max PSI, 2.5 GPM
  • 3DNX27GSI: 2850 Max PSI, 2.7 GPM

These pumps are all basically the same and contain the same parts. There are only a few differences (well just one, the crankshaft), you should refer to the parts breakdown for information on your specific pump (see link below).

Need help repairing your 3DX pump? Start with these documents:
For a general outline of the pumps, here is a breakdown diagram for the 3DX pump
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 3DX pumps:
Valve Replacement
Seal Replacement

If you have any questions about your pump, don't hesitate to give us a call. 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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