Shopping Cart

Your cart is empty.

Your cart is empty.

3100 PSI Upgraded POWER PRESSURE WASHER WATER PUMP Simpson MSV3024 by The ROP Shop

Free shipping on orders over $29.99

$99.99

$ 47 .99 $47.99

In Stock

About this item

  • The ROP Shop replacement Vertical Pressure Washer Pump
  • Specs - Maximum Pressure: 3100 PSI. Maximum Flow: 2.5 GPM. Maximum Pump Speed: 3400 RPM. Shaft Diameter: 7/8" Shaft. 3 Bolt Pattern: 7 11/16" x 6 3/16" x 6 7/16" & 4" Center to Each Outer Hole. Maximum Water Temperature: 140° F. Inlet Connection Type: Standard Garden Hose. Outlet Tube Connection: 22mm Male. Refer to images 2 and 3 for more information
  • Includes - (1) Vertical Pressure Washer Pump with Chemical Injector, Unloader Valve, Thermal Release Valve & Outlet Tube, Hose & Keyway; comes as shown in the first image
  • This pump mounts vertical and is a rear facing (water inlets/outlets come out of the rear of the engine). Pump needs at least 6HP to handle PSI. Pump head can be flipped
  • Please note it is not recommended to run any pressure washer pump above its maximum PSI rating. Doing so can result in damage to the pump (not covered by warranty) and/or serious bodily injury


Please review all product information to ensure that this product is compatible with your unit. Our staff constantly strives to provide clear and concise product information. We understand that sometimes it can be difficult to confirm product compatibility. It is your responsibility to confirm this is the correct product you need; therefore, we encourage all customers to fully review the information provided in this listing prior to purchase. Nothing is worse than having to return a product, trust us...we get it. Let's work together to avoid this! If you are unsure as to whether or not this is the correct product for your unit, please ask. If you seek assistance we will need as much of the following information as possible, if applicable, to help you find the product you are looking for: ▪ Model and/or Sub-model ▪ Spec and/or Type Number ▪ Code and/or Serial Number ▪ Year ▪ Engine Horsepower. Our knowledgeable product specialists are always willing to help you verify product fitment. Stay rugged, my friend.


907 JMAC
Reviewed in the United States on May 25, 2024
Blew the pump in my pressure washer. I didn't want to waste the Honda engine so decided to try replacing the pump assembly even though I'm not really mechanical. The pump came quickly. The holes lined up perfectly and now it works better than ever. Great product!
Den Demron
Reviewed in the United States on May 13, 2024
I called customer service to double check to see if the part number was correct. Very helpful AND THEY ARE AMERICANS!!!!! Go figure. Pump fit perfectly - directions were accurate and followed up with a video. Nice. I wish more American companies did that!!!
Douglas J. McFall
Reviewed in the United States on February 13, 2024
Moderately well built and works great.
Kevin G. McCoy
Reviewed in the United States on November 15, 2023
I replaced my old pressure washer pump with this one. It is a 1:1 replacement for the old one on my unit. Installation was easy.I am not sure there is much difference in output pressure compared to the old one when it was new, but the new one beats the zero PSI of the old one :-)
Richard Huston
Reviewed in the United States on March 26, 2021
Amazon listing was accurate and reassuring, after having looked at the numerous options. This pump did indeed fit the Costco/Honda pressure washer (Simpson MSV3024) perfectly.I made a rookie installation mistake, however. I decided to use the old 'chemical induction' fitting that the siphon tube was attached to. When I removed the new little brass fitting, the spring and ball inside (which I knew nothing about - because I never checked for instructions) evaporated into an alternate universe. When I fired up the unit, high pressure water jetted out the siphon tube...bummer. THEN I did some research. Found out about the check ball/spring function. Searched high and low in my garage for the missing pieces to no avail. If you could see the state of my workbench, you'd understand.I called the ROP shop and the friendly agent identified and sold me the needed part quickly, referencing the original Amazon order number. They even provided fast and free shipping. Now the new part (with spring and ball bearing in place) is installed. Pump works like a dream. I highly recommend this vendor. Previous good reviews proved correct. These guys rock.
ND 120
Reviewed in the United States on August 2, 2020
Very easy install for my Costco 3000 PSI Simpson pressure washer. Unfortunately it will only install one direction which points the outlets to the rear of the machine. This is the reason the last one broke as you have to tilt the machine to wheel it around. This caused the outlet to crack... Hoping this one lasts longer than the original. Will update if it fails. Other reviews have said it seems more powerful than original... My experience was not that and it seemed slightly less powerful in my opinion.
John R.
Reviewed in the United States on May 20, 2020
Bought this for my son's power washer since his factory pump stopped working after two years. Installed it and the unit works better now than it did when it was new. Great price and very easy to install, I also purchased the extended warranty. If you buy this pump you will not be disappointed thanks ROP Shop
Makrel Johnson
Reviewed in the United States on August 15, 2019
Installing this pump was a near idiot-proof (thankfully for me). This body was a 3-arm setup where the factory was a circular universal-fit bracket. All bolt holes aligned perfectly and the shaft fit very snugly - keeping the key aligned was the hardest part of install.Testing was satisfying, and a noticeable kick above the older, leaky pump and no oils misting the washer and driveway underneath it sealed the deal. Well worth the price over finding a guy to rebuild, hoping it was done right and having the down time in between. I did get the small can of pump saver to prolong the life of this one.UPDATEJust under 3 years later and maybe 10 -12 car washes, patio washings and genera light duty, the seals are letting go an dripping oil like the last one. It's never sat with pressure on the hose for more than 60 seconds and I've used the Simpson preservative when stored. It still pumps at full pressure (it seems) but if you don't want to leave stains on your customer's concrete or kill grass, put it on a mat.