3000 PSI – 5.0 GPM Gas Pressure Washer – Honda GX390 & Comet Triplex Pump

This machine is Special Ordered and not typically carried in stock, please call for current lead times. By making this purchase you acknowledge the wait time and we will ship this product when it arrives.

The 3000 PSI – 5.0 GPM Gas Pressure Washer featuring the Honda GX390 commercial engine and a Comet industrial triplex plunger pump delivers exceptional performance for professional cleaning contractors. Built for daily use in demanding environments, this unit is ideal for heavy-duty softwash prep, surface cleaning, fleet washing, and commercial property maintenance.

The Comet triplex pump offers outstanding durability, easy maintenance, and reliable flow rates, while the Honda GX390 provides fuel-efficient, smooth-running power with electric or recoil start options. This unit is built on a rugged steel frame with anti-vibration features and large tires for easy transport across rough terrain.

Key Features:

• Engine: Honda GX390 – 389cc, 4-stroke OHV, commercial-grade

• Pump: Comet triplex plunger pump (belt or direct drive depending on model)

• PSI / GPM: 3000 PSI at 5.0 GPM – ideal for high-volume cleaning

• Frame: Heavy-duty powder-coated steel frame

• Wheels: Pneumatic tires for job site mobility

• Unloader Valve: Adjustable, external for pressure control

• Bypass Hose & Filter: Included for pump protection

• Fuel Tank Capacity: 6.4 quarts

• Detergent Injection: Downstream soap injector included

Specifications:

• Max Pressure: 3000 PSI

• Flow Rate: 5.0 GPM

• Engine: Honda GX390

• Pump Type: Comet Triplex (model may vary – e.g., Comet RW, ZWD, etc.)

• Start Type: Recoil (electric start optional on some models)

• Mount Type: Skid frame or wheelbarrow-style cart

• Weight: Approx. 130–160 lbs (varies by build)

• Hose & Gun: Usually sold separately – check kit contents