SIMPSONCleaning 7106627 Replacement Water Seal Kit for Pressure Washer Pumps, Black

Fit perfect and fast shipping as well.

I bought a used Simpson Pressure washer and after getting it home realized it was leaking. I looked on youtube and contacted Simpson Cleaning to confirm that it could possibly just need a water seal kit since some of the seals might be bad. I saw a youtube video by James Bubnick title Simpson OEM pump rebuild valves and seals Pump... Anyway, the video was very helpful and he said in the video that after he replaced the seals, he still had a leak and then he realized there was a small o-ring in the middle of the 3 seals that was missing so he replaced that and it repaired the leak. I had the same experience - after replacing all seals included in the kit, the pump still leaked so I went to Harbor Fr and picked up an o-ring kit for about $5 and found a small one (about the size of a nail top) and it fit and once in, I reassembled the pump and no more leak. The schematic from Simpson does not appear to show the small o-ring and the water seal kit does not include if which I think it should because without it, the pump still leaked immensely. Even though the water seals that were in my pump were old and one was torn from use, I think the leak I had could have been resolved with replacing that one small o-ring. So if anyone takes apart their pump, and then put it back together, make sure to watch for that small o-ring so you don't lose it or your pump, if the same design as mine, will likely leak until its replaced. Another positive was Simpson Cleaning customer service reps were very friendly and tried to help as best as they could based on the schematic but since I'm guessing most have not worked on the pressure washers, they were not aware of the small o-ring that was not included in the schematic nor in the kit. Bottom line, while the kit is good, it should include that small o-ring and Simpson should also update their schematic to show the o-ring.

Haven’t used yet, but as described

Package arrived but not complete kit, useless

Fit right in to my vehicle!