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Simpson ALH4240 vs PS4240 - The Differences

Further down the page, you'll find some explanations regarding the key similarities and differences between the Simpson PS4240 and the Simpson ALH4240.

But before checking out explanations regarding their power, design, and features here's a table that summarizes the main pros of each of these 2 pressure washers:

Simpson PS4240Simpson ALH4240
Simpson PS4240Simpson ALH4240
  • Slighlty less expensive
  • Aluminum frame
  • Lighter
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As the PS4240 and the ALH4240 are both Simpson pressure washers, they benefit from the same overall level of quality and attention to detail.

Power Comparison

  • Fuel: Both units are gas-powered pressure washers, offering high pressure for effective cleaning and continuous operation without the need for recharging or plugging in.
  • Engine & Pump: The Simpson PS4240 and the Simpson ALH4240 utilize triplex plunger pumps, distinguished by their sturdy construction and impressive pressure output. These 2 pumps originate from different manufacturers, with one being produced by AAA and the other by CAT. Both units utilize a 389cc engine to drive the pump. It is worth noting that both pressure washers feature engines manufactured by Honda, a renowned name in the industry for producing high-quality engines. Both devices are started using a traditional pull-start mechanism.

The following charts are provided to show you at a glance how the main specs of the Simpson PS4240 compare to the Simpson ALH4240.

  • Pressure: Because the Simpson PS4240 and the Simpson ALH4240 share the same maximum attainable pressure of 4200 PSI, they should deliver uniform force for effortlessly blasting away dirt and grime.
  • Water Flow: Both units boast the same maximum water flow rate, with each capable of delivering up to 4 gallons per minute (GPM). As a result, both units offer identical rinsing power, ensuring consistent performance for various cleaning tasks.
  • Cleaning Power: Both devices deliver identical cleaning power measured at 16800 Cleaning Units, resulting in equivalent overall cleaning efficiency.

Design Comparison

  • Design: Both units feature a wheelbarrow-inspired design. Consequently, if one unit exhibits superior mobility, it could be attributed to aspects like its wheels and weight, as outlined in the subsequent section. It's noteworthy that the Simpson ALH4240 boasts an aluminum frame, offering durability and resistance to rust.
  • Design: Both units feature a wheelbarrow-inspired design. Consequently, if one unit exhibits superior mobility, it could be attributed to aspects like its wheels and weight, as outlined in the subsequent section. It's noteworthy that the Simpson ALH4240 boasts an aluminum frame, offering durability and resistance to rust.
  • Weight: With a weight of approximately 133 lbs, the ALH4240 is slightly lighter in comparison. As a result, users may expect it to be more manageable for transportation and handling than the PS4240, which has a weight of around 136 lbs.
  • Maneuverability: With the addition of wheels, both products enjoy improved maneuverability. Both products come equipped with a handle, engineered to enhance your grip for increased comfort and control while maneuvering or transporting them.

Feature Comparison

  • Soap Addition: Both washers support the addition of chemical detergent solutions to the water, improving their cleaning potential. For both units, this is achieved through a siphon hose.
  • Trigger Gun & Wand: Each of these units is supplied with a fairly standard ergonomic trigger gun and a classic wand.
  • Nozzles: Out of the box, the ALH4240 and the PS4240 both come with a 5-nozzle package. Both products offer the exact same selection of nozzles: 0°, 15°, 25°, 40°, and a soap nozzle.
  • Reach: With identical 50 ft high-pressure hoses included, neither the Simpson PS4240 nor the Simpson ALH4240 offers an increased range of motion from the unit.
  • Storage: The PS4240 and ALH4240 both offer onboard storage that allows you to neatly keep the nozzles and accessories you need at hand. Both washers come equipped with a set of hooks, ensuring tidy storage for their high-pressure hoses.

TL;DR

Simpson PS4240Simpson ALH4240
Simpson PS4240Simpson ALH4240
  • Slighlty less expensive
  • Aluminum frame
  • Lighter
Show all offers
Show all offers
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