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Cordless 4G40 Battery-Powered Pressure Washer — 4000 PSI, No Cord Required

4000–4999 PSI4.0–4.9 GPMElectric
$14,900.00
$20,000.00Save $5,100

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

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

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Freight · free to a business
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Overview

The AR Cordless 4G40 is a battery-powered, cold-water electric pressure washer that delivers 4000 PSI at 4 GPM — the same performance as a 390cc gas engine with none of the fumes, oil changes, fuel storage, or fuel spills. A 52V DC variable-speed motor drives an industrial AR RKV4G40 pump, and a digital control system lets you dial in both PSI and motor RPM so you use only the flow the job needs. The stainless steel frame and cover plate hold up in the field, and because there's no exhaust, it can run indoors. It's built for contractors and operators who want gas-level cleaning power on cordless, emissions-free equipment.

What's included

  • 4000 PSI at 4 GPM — comparable to a 390cc gas engine, with no exhaust fumes
  • 52V DC variable-speed motor: control PSI, motor RPM, and flow independently
  • Industrial AR RKV4G40 direct-drive pump
  • Digital control system to match water use to the job
  • Stainless steel frame and cover plate
  • Can be run indoors — no engine, no fuel, no fumes
  • Standard battery pack: up to 2 hours of run time
  • Additional battery packs available (14kWh up to 2 hrs, 28kWh up to 4 hrs open-gun time)
  • Charges overnight from a standard 110V outlet (230V available)

Heavy Duty

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

Specifications

Pressure (PSI)
4000 to 4999
Flow (GPM)
4.0 to 4.9
Engine
Electric
Drive
Direct
Motor
52V DC variable-speed
Pump
AR RKV4G40
Frame
Stainless steel frame and cover plate
Charging
110V outlet (230V available)
Run Time
Up to 2 hours (standard battery pack)

Frequently asked questions

Yes. Because it runs on a battery-powered 52V DC motor with no engine, there are no exhaust fumes, so it can be used indoors — unlike a gas unit.

It delivers the same performance as a 390cc gas engine — 4000 PSI at 4 GPM — without the fumes, engine oil changes, fuel storage, or fuel spills.

The standard battery pack provides up to 2 hours of run time. Additional packs are available — 14kWh packs add up to 2 hours and 28kWh packs up to 4 hours of open-gun time (estimated at full power). Lowering pressure or flow with the variable-speed control extends run time further.

The battery pack charges overnight from a standard 110V outlet. A 230V charging option is also available.

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