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⚡ Restore power, precision, and performance — don’t let your pressure washer fall behind!
The Simpson Cleaning 7108366 Manifold Replacement Kit is a premium OEM replacement designed for axial cam pressure washer pumps 510020 and 520006. This comprehensive kit includes all essential components—valves, seals, unloader, thermal relief valve, integrated soap injector, and hardware—ensuring a durable, efficient, and easy-to-install solution for both residential and commercial pressure washers. Engineered to restore your machine’s peak performance quickly, it’s the trusted choice for professionals and enthusiasts aiming to maintain powerful, reliable cleaning equipment.











| Best Sellers Rank | #53,931 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #576 in Pressure Washer Accessories |
| Customer Reviews | 4.5 out of 5 stars 429 Reviews |
D**E
Works like the original
Had to replace because mine froze up and cracked. I now remove it and store it in a warm room in the winter. Easy to remove. Easy to replace.
J**E
Parts fit perfectly
100% satisfied
J**T
Works great!
I replaced the manifold on my Simpson power washer with this one. It works great. No leaks.
T**L
As good as the original -
Installation was easy, fit was perfect, just don't forget to get the old washers out before you install the new ones. You might need a small needle to pop them off as they get stuck on the rubber seal inside. Easy to get off then replace with new washers.
G**G
Water manifold
Fit perfectly and very easy to switch out
R**A
Fits Simpson 3100 PSI 2.5 GPM Pressure Washer
Fit our Simpson 3100 PSI 2.5 GPM Pressure Washer with the Honda GC190 Engine perfectly. Easy R&R. Have used it four or five times since installing it. No leaks, etc. The soap injector nipple corroded and blew off of the original manifold. Try as I might I could not get the rest of the threaded piece out or I would have just replaced that. So I bought the entire manifold for ~$40 more and am very happy with it. I'll post back if it doesn't work out for some reason.
J**S
You get what you pay of.
I should of ordered this OEM replacement pump first but I thought a knock off pump would work but after two tries I finally reached the conclusion that you get what you pay for and this pump worked the way it was supposed to, Lesson learned.
C**L
Garbage, weak bolts
Garbage, used twice and on the second time one of the bolts snapped off in washer. Ow I have to figure out how to dig it out or I have to replace entire power washer!
A**W
Perfect fit replacement Simpson 3000 psi
Easy to replace with 3 matching bolts provided.
G**G
Perfect fit
Works very well
D**K
Better quality than the original
Replaced it on my pressure washer and found it fit like original and seemed to be better constructed than the original.
J**I
Good service
1st manifold was defective. They replaced it no problem. 2nd one worked perfectly.
K**T
It is the right part and very easy to install
The price I paid was good compared to in store purchase . However a new pressure washer is maybe 600.00 so to pay 189 .00 for a small part seems excessive . However it worked great !
Trustpilot
1 month ago
3 weeks ago