APSSKU: S/B4042HV

GX390 Honda 4 GPM 4200 PSI Skid Mount Belt Drive AR Pump HD Steel

Name: GX390 Honda 4 GPM 4200 PSI Skid Mount Belt Drive AR Pump HD Steel
Brand: American Pressure Systems
SKU: S/B4042HV
Price: 2099 USD
Availability: InStock

4000–4999 PSI4.0–4.9 GPMHonda

$2,09900

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

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Overview

This is a cold-water, skid-mount pressure washer rated 4200 PSI at 4.0 GPM, built on a heavy-duty domestic steel frame with a corrosion-resistant coating. It pairs a Honda GX390 engine, with Oil Alert low-oil shutdown, to an industrial AR pump through a 3-V groove cog belt drive, so both the engine and pump run at lower RPM for longer service life. The belt drive smooths power transfer and cuts vibration versus a direct-drive setup. It's built for contractors and operators who need a durable, high-output cold-water machine for daily field use, and it ships ready to run with gun, wand, hose, and a full nozzle set.

What's included

Honda GX390 engine with Oil Alert low-oil shutdown
Heavy-duty industrial AR pump, belt-driven for low-RPM long life
3-V groove cog belt drive for smooth power transfer
HD domestic steel skid frame with corrosion-resistant finish
Adjustable-pressure EZ start unloader valve
Thermal relief valve protects the pump from overheating
50-mesh stainless inlet filter screen and four rubber iso-pads
Made and assembled in the USA

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: AR industrial
Water Type: Cold water
Mount: Skid, HD steel frame
Inlet Filter: 50-mesh stainless steel
Hose Length: 50 ft
Origin: Made in USA

Frequently asked questions

It ships with a heavy-duty gun-wand with quick-connects, a 50-foot high-pressure hose with QC couplers, a 10% chemical injector, four color-coded stainless QC spray nozzles, one brass QC chemical nozzle, and a stainless inlet filter with external bypass.

This is a cold-water unit. It runs unheated water at 4200 PSI and 4.0 GPM and does not heat the water itself.

The belt drive lets the pump turn at a lower RPM than the engine, which extends pump life and reduces vibration. It uses a 3-V groove cog belt for smooth, reliable power transfer.

Yes. Available options include an electric-start upgrade with a marine battery box, a block-mount K7 flow-sensitive UL valve, and a portable cart with heavy-duty flat-free tires.

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