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Simpson WB4200 4,200 PSI WaterBlaster Commercial Gas Pressure Washer
Model#: SMPNWB4200
Condition: New

Simpson WB4200 4,200 PSI WaterBlaster Commercial Gas Pressure Washer

Model#: SMPNWB4200
Out of Stock
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A heavy duty pressure washer, this unit is for professional or do-it-yourselfers with a lot of surface area that needs constant cleaning. Provides the quickest and cleanest results for extremely large areas and heavily soiled areas. These units will do all of the medium or light-duty jobs PLUS remove oil stains, wash the siding on your house and even remove graffiti!
  • Honda GX390 Commercial Series OHV Engine with Oil Alert
  • General Pump TX Commercial Series Pump
  • Dual belt-drive system for longer pump and engine life
  • 5 Quick Connect nozzles; 0 degrees, 15 degrees, 25 degrees, 40 degrees and soap
  • Detergent siphoning tube
  • Double frame construction reduces vibration, movement of unit and increases durability
  • 10 gauge steel frame with 10 gauge sub-frame, 1-1/4-in tubular steel handles and 5/8-in solid steel welded axle for extreme durability
  • 13-in pneumatic tires (double sealed) with steel wheels
  • On board gun, hose and nozzle storage
  • 1 year limited warranty, 3 year Honda engine warranty, 5 year General Pump warranty, 90 days gun, hose and lance warranty
  • 4,200 PSI WaterBlaster Commercial Gas Pressure Washer - WB4200
  • 3/8-in x 50-ft x 4,500 PSI Hose with Quick Connectors
  • (5) Quick Connect Nozzles
  • Detergent Siphoning Tube


Length: 46 in.
Width: 28 in.
Height: 26 in.
Weight: 200 lbs.
Best Uses: Oil Stains, Siding, Graffiti Removal
Chemical Injection: Siphon Tube
Cleaning Power: 14,700 (PSI x GPM)
Engine Displacement: 390cc
Flow Rate: 3.5 GPM
High Pressure Hose: 50-ft
Motor: Honda GX390
Number of Quick Connect Nozzles Included: 5
Operating Pressure: 4,200 PSI
Power Type: Gas
Pump Type: Triplex Plunger
Temperature: Cold
Type: Heavy-Duty
Wheel Size: 13-in
Wheel Type: Pneumatic


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