Simpson ALH4440-S - 4400 PSI 4 GPM 420cc Gas Pressure Washer
The Simpson ALH4440-S is a gas-powered pressure washer offering a maximum water pressure of 4400 PSI and flow of 4 GPM. (Read full specs)
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Description
Zoom on the Simpson ALH4440-S
The Simpson ALH4440-S is a commercial pressure washer, that provides its users with an all-around versatile cleaning experience, and enables:
- pinpoint spot cleaning of hard, unpainted surfaces, accessing high areas, and successfully removing stubborn stains
- general cleaning of hard surfaces , washing vehicles, and preparing surfaces for painting
- soft cleaning of delicate surfaces, and gentle cleaning for larger areas with low pressure
- applying detergents or chemicals, and rinsing surfaces afterward
Ahead are presented its power characteristics and design, its main features and any other additional features.
Power
Using a powerful 420cc engine, its triplex pump delivers a pressure of up to 4400 PSI (roughly 73 times more than a standard garden hose) and a flow of up to 4 GPM (values as per PWMA testing standards). When these values are taken together, they yield a cleaning power of 17600 Cleaning Units.
For this gas-powered pressure washer, the CRX 420 engine is started using a time-tested pull-start mechanism.
Containing gasoline, the pressure washer's fuel tank can hold a maximum of 1.6 gallon.
Design & Handling
Thanks to its hand truck design and approximate dimensions of L38 x W23.5 x H29 in, the Simpson ALH4440-S offers great mobility. Featuring an aluminum frame, this pressure washer boasts easy handling and exceptional durability, thanks to its corrosion-resistant properties and lightweight construction. The adds to the ALH4440-S convenience of transport.
With its weight clocking in at 133 lbs, this unit's heftiness can't be ignored, presenting significant difficulties for users who need to lift and transport it, especially over uneven terrain. The main contributors to its weight are its 420cc CRX 420 engine, the triplex pump and aluminum frame. However, the incorporation of two 13" pneumatic wheels makes navigating the ALH4440-S less cumbersome, even on uneven terrain.
Main Features
The Simpson ALH4440-S comes with a spray gun, a wand, a pressure hose, 5 nozzles and a detergent injection feature, which are detailed below.
- Soap injection: Though lacking a dedicated soap tank, the device ensures detergent supply via a siphon hose. The pressure washer automatically dispenses and mixes the detergent with the water when a soap nozzle is attached.
- Pressure hose: The unit comes equipped with an included 50 ft ⌀3/8" high-pressure hose, which can be neatly stored on the unit when idle, thanks to a set of convenient hooks, ensuring easy access and organization.
- Spray gun and wand: A side hook enables you to easily store the included classic ergonomic spray gun and its wand.
- Nozzles: Find details on the 5 included nozzles and their recommended surface applications in the table below.
0° | 15° | 25° | 40° | Soap | |
|---|---|---|---|---|---|
| Concrete, brick, masonry | |||||
| Siding, gutters, house | |||||
| Fencing, deck, patio | |||||
| Lawn equipment, boat, RV |
Please be aware: The shapes of the depicted nozzles are for illustration purposes and may differ. Symbols utilized include a indicating 'Not recommended,' a for 'Suitable,' and an for 'Use with caution.'
Other Features
Some of the included accessories
- Onboard storage: Stay prepared for any job with Simpson ALH4440-S's handy storage area, which allows you to neatly store any nozzles and accessories which you may need for the job.
- Safety: Safety of operation is enhanced by a thermal relief valve (which helps to prevent internal pump damage), a low oil protection and a trigger lock mechanism (which prevents accidental operation).
- Accessories: Included with the Simpson ALH4440-S are also the owner's manual (opens in a new tab) and some basic documentation to get you promptly started, along with several accessories, such as wand, soap hose, oil, spray gun and pressure hose.
The Simpson ALH4440-S's performance versus other pressure washers
The following charts are provided to give you an idea of how the key specs of the Simpson ALH4440-S compare to similarly priced pressure washers.
- Equipped to deliver up to 4400 PSI, the Simpson ALH4440-S is recognized as one of the top performers among gas-powered products capable of producing the highest water pressure, priced between $1000 and $1200.
- In the aforementioned price range, the 4 GPM (gallons per minute) of this washer makes it one of the best performing units in terms of the delivered volume of water.
- With 17600 Cleaning Units (PSI X GPM), the ALH4440-S ranks as among the most efficient devices in its price range.
Price comparison
As you can see from these interactive charts, when compared to other gas-powered washers between 17000 and 18500 Cleaning Units, the Simpson ALH4440-S is on the average side of the price range.
Therefore, this pressure washer nicely fits in the expected budget for this kind of cleaning power.
The bottom line
- In the expected price range
- 10 year (limited) warranty
- Triplex pump
- Aluminum frame
- Good range of nozzles included
- Onboard storage
- Several security features
- High PSI for the price
- High GPM for the price
- High CU for the price
- No soap tank
Do you own the Simpson ALH4440-S and agree (or disagree) with these strengths and weaknesses?
Let us know and write your own review.
Features and Specifications
| Fuel | Gas-Powered |
|---|---|
| Engine | 420cc CRX 420 OHV 4-stroke |
| Pump | CAT Triplex |
| Water | Cold |
| PSI | 4400 |
| GPM | 4 |
| Cleaning Units | 17600 |
| Frame | Aluminum |
|---|---|
| Handling | Hand Truck |
| Wheels | 2 wheels, ⌀13", pneumatic |
| Weight | 133 lbs |
| Dimensions | Approx. 38 x 23.5 x 29 in (L x W x H) |
| Hose storage | Hooks |
| Soap injection | Via siphon hose |
|---|---|
| Nozzles | 0°, 15°, 25°, 40°, Soap |
| Quick connect nozzles | Yes |
| Onboard storage | Yes |
| Hose | 50 ft, ⌀3/8 |
| Security | Low oil, trigger lock and thermal relief valve |
|---|---|
| Emissions | EPA |
| Included accessories | Oil, wand, spray gun, high pressure hose, soap hose, 5 nozzles |
| Warranty | 10 years |
| Series | Aluminum |
| Other model numbers | 61252 |
| UPC | 879399008535 |
We've taken extra care to research and verify each of the specifications above. That said, occasional mistakes or omissions are still possible. If you spot any missing or inaccurate information, feel free to suggest a correction so we can address it.
About Simpson
Simpson has over 50 years of experience making quality products for the outdoor power equipment industry. Part of the FNA Group based in Pleasant Prairie, Wisconsin since 2006, they are a vertically-integrated company, meaning most of the parts and accessories are manufactured and assembled by them. Their manufacturing facilities are international, but their gas-powered pressure washers are made in the USA. With the company motto "Driven by Performance", Simpson continues to offer a great variety of pressure-washing systems for the homeowner or the professional contractor.
Warranty Information
The Simpson ALH4440-S is covered under a warranty for up to 10 years. This warranty may be limited and may not cover all parts of the unit.
For more information about the warranty of Simpson pressure washers, please contact the Simpson Customer Support: 1-877-362-4271.
