GRACO 25N677 - G-FORCE II 4040 HG-DD Pressure Washer, 4000 PSI, 4 GPM w/ Honda Engine & GP Pump

Model covered by this parts diagram for Direct-Drive pressure washer

Ideal for large residential or commercial contractors, the G-Force II 4240 HA-DD pressure washer delivers higher power and flow and is built tough to handle weekly use and deliver high flow and pressure in a compact, durable package.

• 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
• Reliable, AR Triplex Plunger Water Pump
• 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
• EZ Start Pressure Relief For Easier Starting
  
  • Standard Graco feature
  • Allows water bypass pump to eliminate pressure build-up in the system
  • No need to pull the gun trigger while starting the washer
• 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)

Additional Specifications

• Max Working Pressure: 4000 PSI / 27.6 MPa / 276 Bar
• Flow Rate: 4.0 GPM

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
Maximum Working Pressure (psi)	4000
Model	G-Force II
Motor Drive Type	Direct Drive
Pump Brand	GP
Pump Type	Triplex Plunger
Recommended Weekly Usage (Hours)	20-30
Series	4040
Type	Gas Pressure Washer
Weight (lb)	92

Compatible Equipment

• G-FORCE II pressure washer systems
• Direct-Drive pressure washer parts shown in diagram
• 25N677

Related Parts

• 25N681, 25N677K
• 25N678
• 25N682, 25N688K
• 25N679
• 25N683, 25N679K
• 25N680
• 25N684

This is a 4040 HG-DD model pressure washer with Honda engine and GP (General Pump) in direct drive configuration. The model number breakdown shows: 40=4000 PSI pressure rating, H=Honda engine, G=GP pump, DD=Direct Drive system. 25N677 is listed as one of the models covered by this parts diagram for Direct-Drive pressure washers. The diagram shows various components including engine, pump, hoses, handles, and other parts but no specific specifications are provided for the 25N677 model itself on this page. 25N677 is listed as one of the main models covered by this parts list. It uses AR RSV series pump (177103), has 11-inch wheels, includes chemical injector with hose and strainer, thermal valve, and comes with 4.0 GPM nozzle set (0°, 15°, 25°, 40°). Compatible with other models in the 25N6XX series family.

Reference Manuals

• 3A6588 (Page 2)