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⚡ Upgrade your clean game with power and durability that lasts!
The OEM Technologies 3100 PSI 2.4 GPM Vertical Pressure Washer Pump Kit (model 90026) is a high-performance, easy-to-install replacement pump designed for gas-powered vertical engine washers. Featuring stainless steel pistons, a maintenance-free crankcase, and a thermal relief valve, it ensures long-lasting durability and efficient cleaning power. Compatible with many popular models, it offers a cost-effective way to extend your pressure washer’s life without sacrificing performance.

















| ASIN | B00TQLMNF4 |
| Best Sellers Rank | #22,617 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #11 in Pressure Washer Pumps #1,271 in Pressure Washer Accessories |
| Brand | SIMPSON |
| Brand Name | SIMPSON |
| Color | Silver |
| Customer Reviews | 4.5 out of 5 stars 848 Reviews |
| Flow Rate | 2.4 gpm |
| Global Trade Identification Number | 00879399001468 |
| Included Components | OEM Technologies Vertical Axial Cam Pump Kit |
| Item Dimensions L x W x H | 9"L x 9"W x 7.5"H |
| Item Type Name | Replacement Pressure Washer Pump Kit, 3100 PSI, 2.4 GPM, 7/8" Shaft, Includes Hardware and Siphon Tube, for Residential and Industrial Gas Powered Machines |
| Item Weight | 6 pounds |
| Manufacturer | simpson |
| Manufacturer Part Number | 90026 |
| Manufacturer Warranty Description | 2 year warranty |
| Material | Metal |
| Material Type | Metal |
| Maximum Lifting Height | 22 meters |
| Model Number | 90026 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Power Source | Gas Powered |
| Product Dimensions | 9"L x 9"W x 7.5"H |
| Product Style | Vertical 3100 PSI |
| Specific Uses For Product | Pressure Washing |
| Style | Vertical 3100 PSI |
| UPC | 879399001468 |
| Unit Count | 1 Count |
J**N
Replacing the lower part on my pressure washer
It was an easy install and my problem was corrected.
P**W
Yes!! Found a replacement for my Simpson 3100 psi!!!
I've had the awesome powerwasher for 10 or more years, which I purchased from Costco! Great washer! But since I live in Utah, and the winters are long and cold here, I forgot to purge the water from the pump, and you can imagine what happened, well it sat for 2 years as I looked for a replacement pump. I finally decided to call Simpson to see if they still made a pump that would fit my model... Sure enough they did but the cost through them would have been close to 300.00, so I asked the support person for a model number of the pump, which she happily gave me... A quick search later, and I found this pump!! It fit perfectly, and works great! Time will tell how long it will last, but for now... I'm very happy, and my side by sides can again be clean!! Thanks
T**.
Great replacement for OEM
Works great so far.
H**Y
Better than original pump.
Arrived in 36 hours. Installed in 30 minutes. This Simpson pump looks to be equal to the original in design, but supersedes it with better pressure and volume. Very pleased that I decided to upgrade the pump rather than purchase a new complete unit at more than quadruple the price of the replacement pump.
V**E
Can stand the pressure
This is a decent pump, running it with a 5.5hp Briggs removed from a push mower that the bed had rotted through. The unloader valve is adjustable, but to be able to start the gas engine I had to reduce the unloader to almost zero, shut the water supply off (until started) and keep the trigger on the HP gun to relieve ALL sources of load/pressure on the pump. Without doing this I could not pull the starter rope due to the "load". This pump fits numerous washers and made a very nice homebuilt unit. Plenty of pressure indicated on my test rig. 2700-3000psi. Not a Toy.
M**G
No issues
Works like a charm
A**N
Perfect fit for Honda/Simpson 3000 purchased at Costco 10+ years ago.
Perfect fit for my 10+ year old red Honda/Simpson 3000 pressure washer originally purchased at Costco.
M**5
Not so good a product
I bought this pump & installed it correctly. Unfortunately, the first time I used the power washer, the pump leaked oil like a siv. I got no relief from customer service other than to take it to a service center, a one hour drive from my house. No can do that. Would have been nice to get a replacement since I did pay for a pump that would work & did not get that. Be careful buying from this company.
S**L
IT WORKS
Ordered this product as a replacement pump for my Simpson 3000psi 2.4GPM gas powered pressure washer as the previous pump had cracked and stopped working. I was a bit hesitant on ordering because I was not sure if this would fit. I'm glad I ordered as the pressure washer is up and running, ran it for a couple hours after install without any problems. It comes with everything you need to install, just be careful when taking the previous pump off. Requires some effort but nothing major. I was able to take off the old pump and install the new one in about 15-20mins. Hopefully this replacement pump lasts a while. Saved me a few hundred $$ as I was thinking of going out and purchasing a new one. Overall I'm happy with it.
Y**E
je recommande
livraison ultra rapide emballage parfait livré avec vraiment tout ce quil faut meme la clé du shaft moteur , pour mon power washer briggs staton 2200 , pour aligné avec moteur les in and and out se retrouvait a larriere plutot qua lavant me disant que je vivrais avec cet inconvenient mais impossible a cause du shaft des roues arriere ca ne passe pas !!! alors jai demonté la pompe pour inversé les entrees vers lavant ce qui fut tres facile plusieurs position de boltage possible sauf que jai pris ce risque et ne le recommande a personne car ceci pourrait annulé la garantie toutefois tout ceci ne ma pris que 45 minutes meme avec inversion des inlets et ensuite au premier essai wow vraiment surpris par la puissance jai maintenant une machime tres performante pour beaucoup moins cher que den acheter une neuve
S**E
Capable
This is capable of pumping pressure that can peel paint and damn near cook a 5.5 HP motor if you don't wind the blow off way down. It forced a lot of water at a high pressure out the nozzle making the motor work so hard full governor that it backfired like hell everytime I shut it off. I had to wind it way back or that motorwiud have fried it got so hot lol!
A**M
Replaced Simoniz 2600PSI pressure washer pump with a KOHLER XT775
Pump fit the motor shaft but i did have to drill new mounting holes on the chassis for the motor/pump because of the way the hose connects to the pump. After about 2 hours of use I haven't had any issues with the pump.
K**H
Mint machine
Orders Monday got it Thursday at 5:00 pretty easy installing I'm pretty happy with the power I went from a 2700psi to this 3000psi was worth the money in my opinion got to clean up my trucks and cars pretty good over all I'm pretty impressed only time I'll actaully make a review is wen I'm impressed or the product sucked witch this one did not
Trustpilot
3 weeks ago
2 weeks ago