Discounts on Bulk Quantities!

G-Force II 4040 HC-DD Pressure Washer (25N678)
G-Force II 4040 HC-DD Pressure Washer (25N678)
G-Force II 4040 HC-DD Pressure Washer (25N678)
G-Force II 4040 HC-DD Pressure Washer (25N678)

G-Force II 4040 HC-DD Pressure Washer (25N678)


Regular price $2,099.99 Sale


Ideal for large commercial or industrial contractors, the G-Force II 4040 HC-DD pressure washer is Graco’s top-of-the-line direct drive unit. The premium CAT water pump and reliable Honda engine easily handles tough, all-day cleaning and surface preparation jobs.
  • Premium CAT Water Pump
    • The most reliable pumps in the industry
    • The most durable, longest-lasting pumps available
    • 2X longer life than other pumps
  • Honda® Engine
    • Reliable, powerful & easy-to-start
    • Oil Alert shuts down engine to prevent damage if oil level drops too low
    • Thermal sensor prevents pump from overheating in bypass mode
  • External Pressure Unloader
    • Trouble-free, adjustable pressure
    • Ability to match application requirements
    • Keeps water cooler and prolongs pump life
  • EZ Start Pressure Relief For Easier Starting
    • Allows water bypass pump to eliminate pressure build-up in the system
    • No need to pull the gun trigger while starting the washer
    • Standard Graco feature
  • 100% Heavy-Gauge Aluminum Frames
    • Up to 40% lighter than steel frames
    • Corrosion resistant to water and chemicals
    • Standard on all Graco models
    • Lifetime Warranty
  • Direct Drive
    • Compact design with fewer components and lighter weight
    • Pump is connected directly to the drive shaft of the engine
    • Pump rpm matches that of the engine (usually around 3500 rpm)

Technical Specifications

Engine Brand Honda
Engine Model GX390
Fuel Tank Capacity (qt) 6.9
Hose Inlet Diameter (in) 3/8
Hose Length (ft) 50
Includes Professional-Grade Pressure Washer Spray Gun with Quick Connects, 36 in Pressure Washer Wand with Quick Connect, 3/8 in x 50 ft Non-Marking Pressure Washer Hose, 4 ft Chemical Injector Hose with Strainer, 0° Red Pressure Washer Tip, 15° Yellow Pressure Washer Tip, 25° Green Pressure Washer Tip, 40° White Pressure Washer Tip, Black Chemical Pressure Washer Tip
Maximum Flow Rate (GPM) 4
Maximum Fluid Pressure (psi) 4000
Maximum Operating Temperature (°F) 145
Maximum Working Pressure (MPa) 27.6