3SPX Pumps

The 3SPX 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:
  • 3SPX30G1I: 3000 Max PSI, 3.0 GPM
  • 3SPX35GEI: 2500 Max PSI, 3.5 GPM

These pumps are all basically the same and, for the most part, contain the same parts. There are only a few differences, you should refer to the parts breakdown for information on your specific pump (see link below). In essence, the 3SPX30G1I is used with a gas motor and the 3SPX35GEI is used with an electric motor. This means the mounting hardware is different.

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