APSSKU: B4042HV

Portable Cart Cold Viper Belt Drive 4 gpm 4200 psi Pressure Washer

Name: Portable Cart Cold Viper Belt Drive 4 gpm 4200 psi Pressure Washer
Brand: American Pressure Systems
SKU: B4042HV
Price: 1799 USD
Availability: InStock

4000–4999 PSI4.0–4.9 GPM

$1,79900

$2,099.00Save $300

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

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Overview

This is a portable, cart-mounted cold-water pressure washer rated at 4200 PSI and 4 GPM, driven by a Honda GX390 13 hp engine turning a Viper pump through a V-belt. The belt drive runs the pump slower and cooler than a direct-drive setup, which is why it's built for long, daily commercial runs rather than occasional use. It ships ready to work with a commercial unloader, thermal relief valve, low-oil shutdown, and a 50-mesh inlet filter to protect the pump. The cart and flat-free tires make it easy to roll around a job site. Good fit for contractors, fleet washing, and heavy equipment or concrete cleaning.

What's included

Honda GX390 13 hp engine with low-oil shutdown
Belt-drive Viper pump runs cooler for longer duty cycles
Commercial unloader and thermal relief valve
50-mesh inlet filter protects the pump
Cart frame with flat-free tires for job-site mobility
50' high-pressure grey hose with quick connects
Gun/wand assembly with quick connects
5 quick-connect nozzles plus 20% high-draw chemical injector

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 GX390 13 hp
Pump: Viper belt-drive (V-belt)
Water Temperature: Cold water
Inlet Filter: 50 mesh
Hose Length: 50'
Nozzles: 5 quick-connect
Chemical Injector: 20% high-draw, quick connects
Configuration: Portable cart, flat-free tires

Frequently asked questions

This is a cold-water unit. It runs at line-supply water temperature and does not heat the water.

The belt drive lets the Honda GX390 turn the Viper pump at a slower, cooler speed, which extends pump life on long daily runs. That makes it better suited to commercial, high-hour use than a direct-drive machine.

It comes ready to run with a gun/wand assembly, a 50' high-pressure grey hose, 5 quick-connect nozzles, and a 20% high-draw chemical injector — all with quick connects. It also includes a commercial unloader, thermal relief valve, low-oil shutdown, and a 50-mesh inlet filter.

At 4200 PSI and 4 GPM it handles heavy commercial cleaning like concrete, heavy equipment, and fleet washing. The higher flow helps rinse large surfaces faster than a lower-GPM machine.

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