Simpson Professional 4200PSI(Gas-Coldwater) Pressure Washer Trailer W/ CAT Pump+Honda GX390 Engine

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This powerful SIMPSON cold water mobile pressure washing system will handle all your commercial jobs. It is perfectly suited for contract cleaners, mobile detailers, municipalities, and resorts. The trailer is dot certified as an over-the-road pressure washer system. Job-Site set-up is a snap. Pull up to the work area, connect the spray gun, start the engine and begin cleaning. Equipped with a (49-State compliant) HONDA engine and reliable CAT PUMPS triplex pump.


  • HONDA GX390 engine with a low oil shutdown feature (49-State compliant)
  • Reliable CAT triplex plunger pump with external unloader and bypass hose
  • Direct Drive
  • Steel-braided Monster Hose 3/8 in. x 100 ft. kink and abrasion resistant hose with quick connect fittings and polyurethane outer jacket
  • 9 ft. (4 ft. x 5.6 ft. Platform)
  • 12 ft. Premium 6-ply tires for ease of maneuverability across rugged terrain
  • 5 Quick connect nozzle tips: 0°, 15°, 25°, 40° and soap to use for a variety of cleaning applications
  • 2000 lb. Single axle construction
  • Fuel tank capacity: 6.4 quarts (6.1 liters)
  • Water tank size: 150 gallon
  • Unit Dimensions: L: 80” x W: 72” x H: 52”
  • Unit Weight: 630 lbs
  • The actual product may vary slightly from product images
Weight 630 lbs
Dimensions 80 × 72 × 52 in