SIMPSON Cleaning ALH4240 Aluminum Series 4200 PSI Gas Pressure Washer, 4.0 GPM, HONDA GX390 Engine, Includes Spray Gun and Extension Wand, 5 QC Nozzle Tips, 3/8-inch x 50-foot Monster Hose, (49 State)

Best Overall: Simpson ALH4240 Gas Pressure Washer

Keeping your home and vehicles clean is no small task. A quality pressure washer is essential for cutting through dirt and grime easily. Simpson Cleaning ALH4240 gas pressure washer has the potential to simplify your cleaning tasks with its powerful 4200 PSI performance.

Best Overall: Simpson ALH4240 Gas Pressure Washer. Andrian Cheng/New York Garden

• Brand: Simpson Cleaning

• Maximum Pressure: 4200 Pound per Square Inch

• Hose Length: 50 Inches

• Maximum Flow Rate: 4 Gallons Per Minute

Simpson's gas pressure washer has a 390cc Honda engine that generates 4,200 psi of pressure at 4.0 GPM. This model, as opposed to the standard axial pump, employs a triple-plunger version with ceramic-coated pistons for increased life.

A 50-foot hose designed for high pressure attached to a 31-inch spray wand adds to the machine's toughness. There are five nozzles included with the pressure washer. Despite being a large machine with a lot of power, the lightweight aluminum frame, along with 13-inch air-powered tires, makes this pressure washer surprisingly easy to handle.

From detailing my car to washing siding and decking to heavy-duty projects like stripping paint, it handles everything expertly. Simpson's ALH4240, with its balanced yet sturdy design, allows me to easily move the pressure washer between tasks without strain. The wheels glide smoothly, and features such as the stable base and onboard hose storage streamline the cleaning process.

Adjustable pressure wand. Being able to seamlessly switch between different spray patterns is very convenient for various surfaces and stain types. The powerful Honda engine easily blasts through tough dirt and grease. It feels incredibly strong yet operates smoothly.

How It Worked in the Long-Term

After putting the Simpson ALH4240 pressure washer through its paces for eight months, it showed no signs of slowing down. The Honda engine fired up on the first pull every time without fail. It reliably delivered strong cleaning power for a variety of tasks, from washing the driveway to degreasing tools. None of the components showed any wear and tear either. With regular quick cleanings, the pump and unloader valve maintained optimal performance.

Editor’s Verdict: The Simpson ALH4240 proved to be a durable, versatile machine that fulfills its core function flawlessly - eliminating dirt quickly and saving users time and effort.