The GRACO 25N678 G-Force II 4040 HC-DD is a top-of-the-line direct drive pressure washer designed for large commercial or industrial contractors. It features a heavy-gauge aluminum frame, a premium CAT water pump, and a reliable Honda engine, making it suitable for demanding all-day cleaning and surface preparation jobs.

Key Features:

• Direct Drive Pressure Washer
• G-Force II 4040 HC-DD
• Heavy-gauge aluminum frame (corrosion resistant to water and chemicals)
• 4.0 gpm (15 lpm)
• 4000 psi (276 bar)
• Designed for use with standard pressure washer accessories and fittings
• Premium CAT water pump (most reliable, longest-lasting pumps available, 2X longer life than other pumps)
• Reliable Honda engine (GX390 model, oil alert, thermal sensor for pump protection)
• External pressure unloader (trouble-free, adjustable pressure, keeps water cooler, prolongs pump life)
• EZ Start pressure relief for easier starting (bypasses pump to eliminate pressure build-up)
• Direct drive design (compact, fewer components, lighter weight, pump rpm matches engine)
• 100% heavy-gauge aluminum frame (up to 40% lighter than steel, lifetime warranty)

Applications:
Ideal for large commercial or industrial contractors needing to tackle the toughest cleaning and surface preparation jobs, including all-day use in demanding environments.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and warranty coverage.
• Ensure all connections are secure before operation.
• Use the included quick connect fittings for easy hose attachment.
• Follow the manufacturer’s guidelines for engine and pump maintenance.
• Check oil levels and inspect for leaks before each use.
• Store in a dry, protected area to prevent corrosion and damage.