What comes in this Pro-Pack?

You get the Honda GX390 / AR pump pressure washer plus a full accessory kit: an 18" Viper PP-SC18 surface cleaner on casters, a heavy-duty gun/wand assembly, two 50' non-marking grey high-pressure hoses with quick-connects, a 10% chemical injector, four color-coded stainless spray nozzles, one brass chemical nozzle, and a 3/8" remote ball valve assembly.

What does the remote ball valve do?

The 3/8" ball valve lets you switch between the spray gun and the surface cleaner remotely, without walking back to the machine. It's plumbed into the assembly so you can quickly alternate tools while working.

How much pressure and flow does it put out?

It delivers 4200 PSI at 4.0 GPM. That combination of pressure and flow suits flatwork and other high-volume commercial cleaning.

Is the surface cleaner included?

Yes. The Pro-Pack includes an 18" Viper PP-SC18 flat surface cleaner mounted on casters, so it's ready to run flatwork out of the box alongside the gun and wand.

American Pressure SystemsSKU: D4042HA-PRO PACK-PP18Sale

GX390 Honda 4 GPM 4200 PSI Direct Drive HD AR Pump Pro Pack- 18" Viper

Name: GX390 Honda 4 GPM 4200 PSI Direct Drive HD AR Pump Pro Pack- 18" Viper
Brand: American Pressure Systems
SKU: D4042HA-PRO PACK-PP18
Price: 2199 USD
Availability: BackOrder

4000–4999 PSI4.0–4.9 GPMHonda

$2,19900

Free shipping · built to order — call for the current lead time

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Overview

This is a contractor-grade cold-water pressure washer package built on a Honda GX390 commercial engine and a heavy-duty AR pump, delivering 4200 PSI at 4.0 GPM through a direct-drive setup. It ships as a Pro-Pack, bundling the washer with an 18" Viper surface cleaner (on casters), a gun/wand assembly, two 50' non-marking grey high-pressure hoses, a 10% chemical injector, five spray nozzles, and a 3/8" remote ball valve that lets you switch between the gun and the surface cleaner without walking back to the machine. It's aimed at pros running flatwork and high-volume cleaning where uptime and reach matter.

What's included

Honda GX390 commercial gas engine, direct drive to a heavy-duty AR pump
18" Viper PP-SC18 surface cleaner with casters included
Two 50' non-marking grey high-pressure hoses with quick-connect couplers
3/8" remote ball valve to alternate between gun and surface cleaner
Aircraft-grade aluminum frame with dual handles, no welds to fail (lifetime frame warranty)
10% chemical injector, 4 color-coded stainless spray nozzles, plus 1 brass chemical nozzle
Adjustable pressure unloader, 50-mesh inlet filter, low-oil shutdown, thermo-sensor for bypass protection
HD flat-free tires, dual padded shock-absorbing feet, 3/4" cold-rolled steel threaded axle

Heavy Duty

Best for: driveways, concrete, paint stripping, commercial degreasing

Specifications

Pressure (PSI): 4000 to 4999
Flow (GPM): 4.0 to 4.9
Engine: Honda
Horsepower: 10 to 15
Drive: Direct
Pump: Heavy-duty AR
Surface Cleaner: 18" Viper PP-SC18 w/ casters
Hoses: Two 50' non-marking grey, w/ QC couplers
Chemical Injector: 10% w/ QCs
Nozzles: 4 stainless spray + 1 brass chemical
Frame: Aircraft-grade aluminum, dual handles
Axle: 3/4" cold-rolled steel, threaded

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