Karcher Kärcher Pressure Washer K1700, 3 Spray Nozzles, vs Simpson 3400 PSI Gas Pressure Washer, 2.5 GPM
Updated August 2026 — Karcher Kärcher Pressure Washer K1700, 3 Spray Nozzles, wins on ease of use, Simpson 3400 PSI Gas Pressure Washer, 2.5 GPM wins on power and durability.
The Kärcher K1700 is a cost-effective choice for light cleaning, while the Simpson 3400 PSI excels in heavy-duty tasks.
Why Karcher Kärcher Pressure Washer K1700, 3 Spray Nozzles, is better
Price
Kärcher is $169.99, significantly cheaper than Simpson's $329.00.
Weight
Kärcher is lighter and easier to transport.
User-Friendly
Kärcher features an on/off foot switch for easy operation.
Why Simpson 3400 PSI Gas Pressure Washer, 2.5 GPM is better
Cleaning Power
Simpson delivers 3400 PSI and 2.5 GPM for heavy-duty cleaning.
Durability
Simpson has a robust build with a maintenance-free pump.
Hose Length
Simpson includes a longer 25' hose for extended reach.
Overall score
Specifications
| Spec | Karcher Kärcher Pressure Washer K1700, 3 Spray Nozzles, | Simpson 3400 PSI Gas Pressure Washer, 2.5 GPM |
|---|---|---|
| Engine Type | Electric | Gas |
| Pump Type | Electric | Axial Cam |
| Foot Switch | Yes | No |
| Detergent Tank | Yes | No |
| Mobility | Wheels | Pneumatic Tires |
Dimension comparison
Price Comparison
The Kärcher Pressure Washer K1700 is priced at $169.99, whereas the Simpson 3400 PSI Gas Pressure Washer is significantly more expensive at $329.00, making it about 94% pricier. If budget is a primary concern, the K1700 offers a more economical choice for homeowners looking to tackle outdoor cleaning tasks without breaking the bank. Despite the price difference, both products are popular, with the K1700 holding a sales rank of 2976 and the Simpson at 5717, indicating a strong market presence for both.
Cleaning Power
When it comes to cleaning power, the Simpson pressure washer significantly outperforms the Kärcher model. The Simpson delivers an impressive 3400 PSI and 2.5 GPM, providing robust performance for heavy-duty tasks like cleaning driveways and decks. In contrast, the Kärcher K1700 offers 1700 PSI and 1.2 GPM, which is suitable for lighter cleaning tasks such as washing cars and patios. Thus, if you require a machine for intensive cleaning jobs, the Simpson is the clear winner, showcasing superior power for tough stains.
Versatility of Use
The Kärcher K1700 excels in versatility with its three spray nozzles: a 15° nozzle for regular tasks, a turbo nozzle for intense cleaning, and a 65° soap nozzle for detergent application. This allows homeowners to tackle a variety of surfaces efficiently. On the other hand, the Simpson model provides four quick-connect nozzles (0°, 15°, 40°, and soap) which also cover a wide range of cleaning needs. While both machines offer adaptable cleaning options, the K1700's specific features for lighter tasks may cater better to casual users, whereas the Simpson is designed for more demanding cleaning scenarios.
Ease of Use
The Kärcher K1700 stands out with its user-friendly design, featuring an on/off foot switch for easy operation and never-flat wheels for smooth maneuverability. Its lightweight and compact build make it easy to transport around your property. In comparison, the Simpson pressure washer, while also designed for mobility with its 10" pneumatic tires, weighs 64 lbs, which makes it heavier than the K1700. For those who prioritize convenience and ease of use, the K1700 may be more appealing due to its thoughtful features that enhance the overall user experience.
Maintenance and Durability
The Simpson pressure washer features a maintenance-free OEM Technologies axial cam pump and a low-oil shutdown engine, which enhances its durability and ease of maintenance. This design ensures that users spend less time on upkeep and more on cleaning. In contrast, the Kärcher K1700 is an electric model that typically requires less maintenance than gas-powered versions, but it may not offer the same level of durability as the Simpson's robust build. If you prefer a machine that minimizes maintenance hassle, the K1700 might be more suited to your needs. However, for those seeking long-term durability, the Simpson's features are advantageous.
Portability
Portability is a significant factor in choosing a pressure washer. The Kärcher K1700 is lightweight and features never-flat wheels, making it easy to transport across different terrains. It is designed for convenience, particularly for homeowners who may need to move it frequently. Meanwhile, the Simpson's 10" pneumatic tires also provide good mobility, but its heavier weight could be a drawback for some users. If you require a pressure washer that is easy to maneuver around your yard or driveway, the K1700 may offer a more user-friendly experience.
Accessories and Features
Both the Kärcher K1700 and the Simpson pressure washer come with essential accessories that enhance their functionality. The K1700 includes a removable detergent tank, a 15° nozzle, a 65° nozzle, a turbo nozzle, and a 18 ft. hose, providing a comprehensive cleaning kit. Meanwhile, the Simpson includes an ergonomic front-load M22 pressure washer gun, a 16" steel wand, and four quick-connect nozzles, making it versatile for various cleaning tasks. While both products offer valuable accessories, the choice may depend on whether you prefer the specific convenience features of the K1700 or the robust cleaning capability of the Simpson.
Which should you buy?
Ultimately, the choice between the Kärcher Pressure Washer K1700 and the Simpson 3400 PSI Gas Pressure Washer depends on your specific cleaning needs and budget. If you are looking for a cost-effective and versatile solution for light to moderate cleaning tasks, the K1700 is an excellent option at $169.99. However, if you need a powerful machine for heavy-duty cleaning and are willing to invest more, the Simpson at $329.00 offers superior performance and durability. Weigh your options based on the types of cleaning tasks you plan to undertake, and select the model that best fits your lifestyle.

