American Pressure SystemsSKU: D4042HA PRO PACK - WW20Sale

GX390 Honda 4 GPM 4200 PSI Commercial Pressure Washer Heavy Duty AR Pump

Name: GX390 Honda 4 GPM 4200 PSI Commercial Pressure Washer Heavy Duty AR Pump
Brand: American Pressure Systems
SKU: D4042HA PRO PACK - WW20
Price: 2509 USD
Availability: InStock

4000–4999 PSI4.0–4.9 GPMHonda

$2,50900

$2,759.00Save $250

Freight delivery · free to a business with a forklift or dock · $99 to a residence

Financing available. Apply now with Clicklease

VisaMastercardAmexDiscoverZelle & ACH also accepted — call 800-493-7692

A 2% fuel surcharge and 3.9% processing fee are added at checkout.

Ready to ship

Freight · free to a business

Warranty

Financing available

Low Price Guaranteed

Found it cheaper somewhere else? We'll match it. Call 800-493-7692 and we'll beat the deal.

Overview

This is a contractor-grade cold-water pressure washer Pro-Pack built around a Honda GX390 engine and a heavy-duty AR pump, rated at 4200 PSI and 4 GPM. It ships as a complete kit: the machine plus a 20" Whisper Wash flat surface cleaner (rated 8 max GPM / 4200 max PSI with a maintenance-free rotary hub), two 50' commercial-grade non-marking high-pressure hoses, a 5000 PSI gun/wand assembly, a detachable chemical injector, a 3/8" ball valve for remote shutoff, and five spray nozzles. It's built for pros running flatwork and general cleaning who want to switch between the gun and surface cleaner remotely and get more jobs done in a day.

What's included

Honda GX390 engine with heavy-duty AR pump, 4200 PSI at 4 GPM
20" Whisper Wash flat surface cleaner (8 max GPM / 4200 max PSI) with maintenance-free rotary hub
Two 50' non-marking commercial-grade high-pressure hoses with quick-connects
3/8" ball valve for remote shutoff between gun and surface cleaner
5000 PSI commercial-grade gun/wand assembly and detachable chemical injector
Five spray nozzles: three stainless quick-connect plus color-coded brass chemical nozzle
Aircraft-grade aluminum frame with dual handles, no welds, lifetime frame warranty
50 mesh inlet filter, adjustable pressure unloader, low-oil shutdown, thermo-sensor
Flat-free HD 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: AR Heavy Duty
Water Temperature: Cold water
Surface Cleaner: 20" Whisper Wash (8 max GPM / 4200 max PSI)
Hoses: Two 50' non-marking, 4200 PSI
Gun/Wand: 5000 PSI commercial grade
Inlet Filter: 50 mesh
Axle: 3/4" cold-rolled steel threaded
Frame: Aircraft-grade aluminum, lifetime warranty

Frequently asked questions

The Pro-Pack includes the 4200 PSI / 4 GPM Honda GX390 cold-water machine with AR heavy-duty pump, a 20" Whisper Wash surface cleaner, two 50' non-marking high-pressure hoses, a 5000 PSI gun/wand assembly, a detachable chemical injector, a 3/8" ball valve for remote shutoff, and five spray nozzles.

The 3/8" ball valve lets you shut off water flow remotely so you can switch between the gun/wand and the surface cleaner without walking back to the machine. It's meant to help you move between tasks faster on the job.

This is a cold-water unit. The Honda GX390 engine drives the AR heavy-duty pump for cold-water cleaning at 4200 PSI and 4 GPM.

Yes. The Whisper Wash 20" surface cleaner is rated to 8 max GPM and 4200 max PSI, so it comfortably handles this machine's 4 GPM / 4200 PSI output, and it uses a maintenance-free rotary hub.

Talk to a real expert

Our equipment experts

150+ years combined on the equipment

Talk to someone who actually knows the machine

Skip the chatbot maze. Call and you get a specialist who can size the right unit, match the exact part, and match the right sealer. Usually faster than figuring it out yourself.

Mon–Fri 8am–5pm ET Family-owned, US-based

800-493-7692 Message an expert