GX390 Honda 4 GPM 4200 PSI Commercial Pressure Washer Heavy Duty ARPump

Overview

This is a Honda GX390-powered cold-water pressure washer rated 4200 PSI at 4 GPM, driven by a heavy-duty AR RRV4G40 pump on an aircraft-grade aluminum frame with dual handles and no welds to fail. It's a commercial/industrial unit built for full-day cleaning — flatwork, fleet, equipment, and building washdown. It ships as a Pro Pack: the machine plus a 16" surface cleaner with greasable rotary hub, two 50' non-marking high-pressure hoses, a 5000 PSI gun/wand assembly, ball valve, detachable chemical injector, and four spray nozzles. Built-in protection includes low-oil shutdown and a thermo-sensor that prevents overheating in bypass mode.

What's included

• Honda GX390 engine with AR RRV4G40 heavy-duty pump
• 4200 PSI at 4 GPM cold water
• Aircraft-grade aluminum frame with dual handles, no welds to fail
• 16" surface cleaner with greasable rotary hub (8 max GPM / 4200 max PSI)
• Two 50' commercial-grade non-marking high-pressure hoses with quick-connects
• 5000 PSI commercial-grade gun/wand assembly
• Detachable chemical injector and ball valve with 3/8" quick-connects
• Adjustable pressure unloader, 50 mesh inlet filter, low-oil shutdown, thermo-sensor
• Lifetime frame warranty; pneumatic tires and shock-absorbing feet

Specifications

Pressure (PSI)

4000 to 4999

Flow (GPM)

4.0 to 4.9

Engine

Honda

Horsepower

10 to 15

Drive

Direct

Pump

AR RRV4G40 heavy-duty

Water Temperature

Cold water

Frame

Aircraft-grade aluminum, dual handles

Inlet Filter

50 mesh

Surface Cleaner

16" (8 max GPM / 4200 max PSI), greasable rotary hub

Hoses

Two 50' commercial-grade non-marking, with QCs

Gun/Wand

5000 PSI commercial-grade assembly

Axle

3/4" cold-rolled steel, threaded