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Sun Joe SPX4003 vs SPX3000 - The Differences

Further down the page, you'll find some explanations regarding the key similarities and differences between the Sun Joe SPX3000 and the Sun Joe SPX4003.

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:

Sun Joe SPX3000Sun Joe SPX4003
Sun Joe SPX3000Sun Joe SPX4003
  • Higher GPM
  • More mobile by design
  • Lighter
  • Dual soap tank system
  • Onboard storage
  • Higher PSI
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As the SPX3000 and the SPX4003 are both Sun Joe pressure washers, they benefit from the same level of quality and attention to detail.

Power Comparison

  • Fuel: Both units are electric pressure washers.
  • Engine & Pump: The Sun Joe SPX3000 and the Sun Joe SPX4003 both use an axial-type pump to put water under pressure. In either case, the pump is powered by a 14.5-amp motor.

The following charts are provided to show you at a glance how the main specs of the Sun Joe SPX3000 compare to the Sun Joe SPX4003.

  • Pressure: With a maximum reachable pressure of 2200 PSI, the Sun Joe SPX4003 provides a slightly higher force to blast off dirt and grime than the 2030 PSI of the Sun Joe SPX3000.
  • Water Flow: When operating at low pressure, the SPX3000 can generate a higher maximum volume of water than the SPX4003. It can deliver up to 1.76 GPM (gallons per minute), whereas the SPX4003 offers a maximum water flow of 1.6 GPM. The former should thus allow you to rinse away dirt and debris with better efficiency and speed.
  • Cleaning Power: As the difference in Cleaning Units (PSI x GPM) between the Sun Joe SPX3000 and the SPX4003 (3572.8 and 3520 C.U., respectively) can be considered negligible, we can say that both theses devices share the same overall cleaning efficiency. Therefore, even though the Sun Joe SPX3000 has a lower pressure rating, its higher water flow makes it the superior unit.

Design Comparison

  • Design: With its compact, portable design, the Sun Joe SPX3000 will be the better option if you consider portability, mobility, and ease of storage as important factors, as the Sun Joe SPX4003 can be considered less mobile, with a hand truck design.
  • Weight: At 23.4 lbs, the SPX3000 is somewhat lighter than the 27.3 lbs of the SPX4003.
  • Maneuverability: Both products benefit from a set of wheels, which greatly contributes to their maneuverability. The SPX3000 has a standard handle and the SPX4003 a foam-padded handle, both of which aid in maneuvering.

Feature Comparison

  • Soap Addition: Both washers allow for the addition of chemical detergent solutions to the water. For that, the SPX3000 has an advantage over the SPX4003. The latter offers a single soap tank, whereas the former benefits from a dual soap tank system that lets you easily store and use 2 different cleaning solutions.
  • Trigger Gun & Wand: While each of these 2 units comes with a fairly standard ergonomic trigger gun, the Sun Joe SPX3000 sports a classic wand, while the Sun Joe SPX4003 has an adjustable one.
  • Nozzles: The SPX4003 doesn't come with any nozzles (its aforementioned wand removes the need for any), but the SPX3000 is supplied with five (0°, 15°, 25°, 40°, and a soap nozzle).
  • Reach: Both products include a 20 ft high-pressure hose. Therefore, neither of them will, out of the box, allow for a higher freedom of movement around the unit. As both units feature a 35 ft power cord, their maximum allowable placement from an electrical outlet is the same.
  • Storage: In contrast to the SPX3000, which offers convenient onboard storage to keep your accessories at hand, the SPX4003 does not have such a feature. Both washers feature a set of hooks to help you neatly store their high pressure hoses when not in use.

TL;DR

Sun Joe SPX3000Sun Joe SPX4003
Sun Joe SPX3000Sun Joe SPX4003
  • Higher GPM
  • More mobile by design
  • Lighter
  • Dual soap tank system
  • Onboard storage
  • Higher PSI
Show all offers
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