American Pressure SystemsSKU: B4040HC

GX390 Honda 4 GPM 4000 PSI Reliable CAT Belt Drive Commercial Pressure Washer

Name: GX390 Honda 4 GPM 4000 PSI Reliable CAT Belt Drive Commercial Pressure Washer
Brand: American Pressure Systems
SKU: B4040HC
Price: 2169 USD
Availability: InStock

4000–4999 PSI4.0–4.9 GPMHonda

$2,16900

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 commercial cold-water pressure washer that delivers 4000 PSI at 4 GPM, driven by a Honda GX390 engine and a heavy-duty CAT belt-drive pump. The belt drive turns the pump slower than the engine, cutting heat and wear for long daily runtimes, which is why contractors pick it over cheaper direct-drive units. It rides on an aircraft-grade aluminum frame with dual handles and no welds to fail, backed by a lifetime frame warranty. Built for pros running the machine hard on fleet washing, concrete and flatwork, and equipment cleaning. It ships ready to run with a 50-foot hose, gun and lance, and a downstream chemical injector, all on quick connects.

What's included

Honda GX390 commercial engine with low-oil shutdown
Heavy-duty CAT V-belt-drive pump with adjustable pressure unloader
Aircraft-grade aluminum frame, dual handles, no welds to fail
Lifetime frame warranty
Thermo-sensor prevents overheating in bypass mode
50-foot 4200 PSI hose with quick connects
5000 PSI gun and 42-inch molded-grip lance with quick connects
10% downstream chemical injector, 50-mesh inlet filter, flat-free tires

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: Belt
Pump: CAT V-belt drive
Horsepower Class: 10 to 15 HP
Inlet Filter: 50 mesh
Hose: 50 ft, 4200 PSI, quick connects
Gun/Lance: 5000 PSI gun, 42 in molded-grip lance
Chemical Injector: 10% downstream, quick connects
Axle: 3/4 in cold-rolled steel, threaded
Tires: Flat-free
Frame: Aircraft-grade aluminum, lifetime warranty

Frequently asked questions

A belt drive runs the pump slower than the engine, which lowers heat and vibration and extends pump life under heavy daily use. That is why this CAT belt-drive setup suits commercial operators running long hours rather than occasional homeowner jobs.

It ships ready to run with a 50-foot 4200 PSI hose, a 5000 PSI gun with a 42-inch molded-grip lance, and a 10% downstream chemical injector, all on quick connects. It also includes a 50-mesh inlet filter and flat-free tires.

The downstream injector pulls cleaning chemical into the water stream after the pump, so soap or detergent passes through the hose and out the nozzle without running through the pump. It is standard equipment on this unit for applying detergents on the low-pressure setting.

This is a cold-water pressure washer. It runs off your incoming water supply and does not heat the water, which fits most general commercial cleaning, fleet washing, and flatwork.

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