Simpson 3400 PSI at 2.5 GPM HONDA® GX200 with CAT Triplex Plunger Pump Cold Water Professional Gas Pressure Washer

|231 ratings
Item # 990421600
Current price is $829.00
Prices may vary in club and online
How do you want your item?

Shipping

Free for Plus on eligible orders over $50
Columbus, 43215
Return or replace anytime.
Sam's credit card
Get a $30 statement credit¹ when you open an account 9/1-9/30/26 + learn how to earn 10% back on fuel for a limited time‡ See details

Smart summary

Generated by AI
  • Agile Aluminum: Features a premium aircraft-grade aluminum frame, meticulously engineered for a lightweight design that significantly reduces weight, enhancing portability for professional use.
  • Powerful Output: Delivers 3400 PSI at 2.5 GPM cold water, powered by a high-performance HONDA GX200 engine and a renowned CAT Triplex Pump for exceptional, consistent cleaning.
  • Diverse Applications: Engineered for demanding cleaning tasks such as deck cleaning, wood restoration, paint preparation, and graffiti removal across diverse residential, commercial, and industrial projects.
  • Efficient Engine: Features a HONDA GX200 engine compliant with 49-State emission standards, promoting efficiency and environmental responsibility, and includes a low oil shutdown feature.
  • Resilient Construction: Constructed for optimal performance in harsh environments, combining strength with durability. The CAT Triplex pump includes an integrated unloader, and the Monster 5/16 x25 hose is kink and abrasion-resistant.
We also recommend

Sun Joe 2200 PSI Electric Pressure Washer W/ Wheels | Accessory Kit | 14.9-Amp | 1.1 Rated GPM $149.98

Sun Joe 2200 PSI Electric Pressure Washer W/ Wheels |  Accessory Kit  | 14.9-Amp | 1.1 Rated GPM
current price $149.98

Sun Joe 2200 PSI Electric Pressure Washer W/ Wheels | Accessory Kit | 14.9-Amp | 1.1 Rated GPM

5 out of 5 stars
5 out of 5 Stars. 8 reviews
Sponsored
simpson 3400 psi at 2.5 gpm honda® gx200 with cat triplex plunger pump cold water professional gas pressure washer — front three-quarter view showing aluminum-frame cart with red HONDA® GX200 engine and white fuel tank, visible CAT PUMPS® triplex pump, coiled 5/16" x25' dual-braided high-pressure hose, steel wand with brass tip, large pneumatic treaded wheels and top control panel; often used by contractors for deck cleaning or paint prep.
Simpson 3400 PSI at 2.5 GPM HONDA® GX200 with CAT Triplex Plunger Pump Cold Water Professional Gas Pressure Washer
Hero image 0 of Simpson 3400 PSI at 2.5 GPM HONDA® GX200 with CAT Triplex Plunger Pump Cold Water Professional Gas Pressure Washer, 0 of 10

About this item

Product details

"The SIMPSON® Aluminum Series frame is meticulously engineered to meet the demanding needs of professional cleaners. Crafted from premium aircraft-grade aluminum, this frame offers a superior lightweight design, significantly reducing weight compared to traditional steel-frame pressure washers. This feature enhances portability, making it easier for contractors to move and transport the unit, whether they are on a job site or between multiple locations. Its reduced weight makes it especially appealing to contractors who handle a variety of demanding cleaning tasks, such as deck cleaning, wood restoration, paint preparation, graffiti removal, and other professional cleaning services. Designed for optimal performance, the SIMPSON Aluminum Series thrives even in the harshest environments. Its construction combines strength with durability, ensuring that the unit can endure challenging conditions without sacrificing reliability. The pressure washer is powered by a high-performance HONDA® engine, which complies with 49-State emission standards, ensuring both efficiency and environmental responsibility. This engine, paired with the renowned CAT PUMPS® pump, delivers exceptional pressure and flow for powerful, consistent cleaning results. Whether you're working on residential, commercial, or industrial projects, the SIMPSON Aluminum Series is built to handle a wide range of tasks. Offering dependable, long-lasting performance, this pressure washer is a perfect solution for cleaning professionals seeking efficiency, durability, and top-tier performance."
info:
If the item details above aren't accurate or complete, we want to know about it. 

Specifications

  • Aircraft-grade aluminum frame is crafted from high-grade aircraft aluminum, making it lightweight, durable, and corrosion-resistant
  • 10 in. Premium pneumatic tires for ease of maneuverability across various terrain
  • 5 Quick connect nozzle tips, 0°, 15°, 25°, 40° and soap nozzle to use for a variety of cleaning applications
  • Images shown may vary from the actual unit
  • This product is not for sale in California

Member ratings & reviews

4.6 out of 5 stars
stars
231 ratings231 reviews
Write a review
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Sort by |

Showing 1-3 of 231 reviews

May 24, 2026
Reviewer name: vblaze
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

It is a nice one!

The unit is flawless after I secured two of the engine mounting bolts. Two of the four were not tightened at the factory. The nut fell off of one of them, luckily I discovered it almost immediately upon initial startup when I saw the nut laying on my sidewalk. I secured the two that were loose and checked all other fasteners and found that the rest were all fine. I have used the unit twice for a total of approximately 2 hours and it works flawlessly. I purchased the Simpson stainless surface washer unit as well and it made quick work of my patio and driveway. It is a nice one!

Review from simpsoncleaning.com
Helpful?73RL69WXDDAG15910509749
Jun 26, 2026
Reviewer name: Anonymous
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great features

I Purchased a unit just like this one 28 years ago. It served me well over the years, I loaned to my children on several occasions. It finally started giving me a few problems so I give it to a friend. Being very pleased with the previous unit, I purchased this one expecting the same service

Review from simpsoncleaning.com
Helpful?73RL69WXDDAG15910509749
Apr 30, 2026
Reviewer name: NH_Dave
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Simpson Quality, Honda Reliability

I followed the unboxing instructions, added oil & gas, and the unit started on the very first pull. The insane part is, I never turned the gas “on”. It started & ran & while I was admiring it, I could hear it starving for fuel & then I quickly turned the fuel on & it started purring like a kitten. I was shocked, but not shocked; it's as effortless & reliable as every small Honda engine I own. The quality of the pressure washer is exceptional; heavy duty & commercial grade, well worth a little more money to get the aluminum frame, Honda engine & CAT pumps.

Review from simpsoncleaning.com
Helpful?73RL69WXDDAG15910509749