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Simpson 4400 PSI Gas Pressure Washer, 4.0 GPM vs Westinghouse WPX3400 Gas Pressure Washer, 3400 PSI

Updated July 2026 — Simpson 4400 PSI Gas Pressure Washer, 4.0 GPM wins on flow rate and power, Westinghouse WPX3400 Gas Pressure Washer, 3400 PSI wins on price and portability.

The Simpson 4400 PSI Gas Pressure Washer excels in power and durability, making it ideal for professionals, while the Westinghouse WPX3400 offers a budget-friendly option for casual users.

Why Simpson 4400 PSI Gas Pressure Washer, 4.0 GPM is better

Power

4400 PSI vs 3400 PSI

Flow Rate

4.0 GPM vs 2.6 GPM

Durability

Welded steel frame vs lighter frame

Why Westinghouse WPX3400 Gas Pressure Washer, 3400 PSI is better

Price

$349.00 vs $899.00

Weight

Lighter and easier to transport

Onboard Soap Tank

Convenient for smaller jobs

Overall score

Simpson 4400 PSI Gas Pressure Washer, 4.0 GPM
85
Westinghouse WPX3400 Gas Pressure Washer, 3400 PSI
70

Specifications

SpecSimpson 4400 PSI Gas Pressure Washer, 4.0 GPMWestinghouse WPX3400 Gas Pressure Washer, 3400 PSI
PSI44003400
GPM4.02.6
EngineCRX 420cc212cc OHV
Hose Length50 ft25 ft
Nozzles55

Dimension comparison

Simpson 4400 PSI Gas Pressure Washer, 4.0 GPMWestinghouse WPX3400 Gas Pressure Washer, 3400 PSI

Price Comparison

The Westinghouse WPX3400 is significantly more affordable than the Simpson 4400 PSI Gas Pressure Washer. Priced at $349.00, the Westinghouse model is about 61% cheaper than the Simpson unit, which costs $899.00. This price difference makes the WPX3400 an attractive option for consumers on a budget or those who don't require high-end features. While both pressure washers deliver impressive performance, the Simpson is positioned as a premium product targeting professionals, which is reflected in its higher price point.

Performance and Power

When it comes to performance, the Simpson 4400 PSI Gas Pressure Washer clearly outshines the Westinghouse WPX3400. The Simpson model boasts a powerful 4400 PSI and a flow rate of 4.0 GPM, making it ideal for heavy-duty cleaning tasks. In contrast, the Westinghouse provides 3400 PSI and 2.6 GPM, which is still effective but falls short for more intensive jobs. This difference in power makes the Simpson better suited for professionals who need a reliable machine for challenging cleaning projects.

Engine and Pump Technology

The Simpson is equipped with a premium CRX 420cc engine and a maintenance-free AAA industrial triplex pump, which allows it to deliver high performance and durability. On the other hand, the Westinghouse is powered by a 212cc OHV engine and features a maintenance-free axial cam pump. While both engines are reliable, the more powerful engine in the Simpson provides a clear advantage for demanding applications, such as commercial cleaning or extensive outdoor maintenance.

Portability and Design

Portability is essential for users who need to transport their pressure washers frequently. The Westinghouse WPX3400 is designed with a lightweight frame and 12-inch never-flat wheels, making it easy to maneuver. The Simpson, while also portable with its 13-inch pneumatic tires, features a more robust welded steel frame, which adds to its durability but may be heavier. Users who prioritize ease of transport might find the Westinghouse more suitable, but those requiring a more durable option may prefer the Simpson.

Accessories and Usability

Both pressure washers come with a set of useful accessories, enhancing their usability. The Simpson includes a 50-foot high-pressure hose and five quick-connect nozzle tips, providing versatility for various cleaning tasks. The Westinghouse, while featuring a shorter 25-foot hose, also offers five quick-connect nozzles along with an onboard soap tank for added convenience. Although both models are user-friendly, the Simpson's longer hose may be beneficial for larger areas, while the Westinghouse's onboard soap tank simplifies the cleaning process for smaller jobs.

Target Audience

The target audience for each product varies significantly. The Simpson 4400 PSI Gas Pressure Washer is aimed at professionals and contractors who require high performance and durability for demanding jobs. Its powerful features justify its higher price and appeal to those in the commercial cleaning sector. Conversely, the Westinghouse WPX3400 is geared toward homeowners and casual users who need a reliable yet more affordable option for maintaining their properties. This difference in target audience influences the overall design and capabilities of both pressure washers.

Customer Satisfaction and Sales Rank

In terms of customer satisfaction, the Westinghouse WPX3400 holds a strong sales rank of 695, indicating its popularity among consumers. The Simpson 4400 PSI model, however, has a sales rank of 8495, suggesting it may not be as widely purchased, likely due to its higher price point. This discrepancy in sales rank highlights the appeal of the Westinghouse to everyday users looking for effective cleaning solutions at a reasonable price.

Which should you buy?

Choosing between the Simpson 4400 PSI Gas Pressure Washer and the Westinghouse WPX3400 ultimately depends on your specific cleaning needs and budget. If you are a professional seeking high performance and durability for heavy-duty tasks, the Simpson is well worth the investment. However, if you are a homeowner looking for an effective and budget-friendly pressure washer, the Westinghouse is an excellent choice. Consider your cleaning requirements, the types of surfaces you'll be working on, and how often you'll use the machine to determine which product will best serve your needs.