4018 O-Ring Kit for units 2002 and newer.
The 4000PSI at 18GPM O-Ring kit is contains all of the o-rings, springs, and back up rings between the inlet and delivery manifold heads in the pump. This kit is usually required when:
· Pump is leaking between the two manifold heads or at the bolts (see thumbnail)
Use this o-ring kit when your pump is on the younger side (3 years or less / 700 hours or less) and is leaking. Do not replace unless the pump is leaking – this is not a preventative maintenance tool. If the pump is 700 hours or older, it may require a Valve Kit instead which would replace more components within the pump.
Yes, these two kits are made for 4018 jetters built prior to 2002 and after 2002. For other pump rebuild kits, please contact your US Jetting representative as we have various options.
- Download this PDF to help guide you on how to do your own O-Ring kit replacement. It doesn’t require taking to a service shop as long as you can follow the drawing.
- For additional assistance, call your US Jetting representative.