APSSKU: D4042KV

14 HP Kohler Command Pro Engine 4 GPM 4200 PSI Heavy Duty AR North America

Name: 14 HP Kohler Command Pro Engine 4 GPM 4200 PSI Heavy Duty AR North America
Brand: American Pressure Systems
SKU: D4042KV
Price: 1329 USD
Availability: InStock

4000–4999 PSI4.0–4.9 GPMKohler

$1,32900

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

Warranty

Financing available

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Overview

The D4042KV is a 4200 PSI, 4 GPM cold water pressure washer built around a 14 HP Kohler Command Pro CH440 commercial gas engine direct-driven to an industrial AR pump. It's a heavy-duty unit for contractors who need commercial reliability in a portable package: the aircraft-grade aluminum frame has dual handles and no welds to fail, and it carries a lifetime frame warranty. Low oil shutdown protects the engine, a thermo-sensor prevents pump overheating in bypass, and the unloader is adjustable up to 5,500 PSI. It ships ready to work with a 50-foot 4200 PSI hose, 5000 PSI gun with 42-inch molded-grip lance, and a 10% downstream chemical injector — all on quick connects. A good fit for fleet washing, flatwork, and all-purpose commercial cleaning.

What's included

14 HP Kohler Command Pro CH440 commercial gas engine with low oil shutdown
Industrial AR pump, heavy-duty direct drive
Aircraft-grade aluminum frame with dual handles — no welds to fail, lifetime frame warranty
Adjustable pressure unloader rated to 5,500 PSI
Thermo-sensor prevents pump overheating in bypass mode
50 ft 4200 PSI hose, 5000 PSI gun, and 42 in molded-grip lance — all with quick connects
10% downstream chemical injector with quick connects
Flat-free HD tires, 3/4 in cold-rolled steel threaded axle, dual padded shock-absorbing feet
50-mesh inlet filter

Heavy Duty

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

Specifications

Pressure (PSI): 4000 to 4999
Flow (GPM): 4.0 to 4.9
Engine: Kohler
Horsepower: 10 to 15
Drive: Direct
Pump: Industrial AR (Annovi Reverberi)
Unloader: Adjustable, rated to 5,500 PSI
Hose Length: 50 ft (4,200 PSI rated, quick connects)
Gun / Lance: 5,000 PSI gun with 42 in molded-grip lance
Chemical Injector: 10% downstream, quick connects
Inlet Filter: 50 mesh
Frame: Aircraft-grade aluminum, dual handles (lifetime warranty)
Axle: 3/4 in cold-rolled steel, threaded
Tires: Flat-free HD

Frequently asked questions

It includes a 50-foot 4,200 PSI hose, a 5,000 PSI gun with a 42-inch molded-grip lance, and a 10% downstream chemical injector — all fitted with quick connects. A 50-mesh inlet filter is built in, so the unit is ready to run out of the crate.

It runs a 14 HP Kohler Command Pro CH440, a commercial-grade gasoline engine with low oil shutdown. The engine direct-drives an industrial AR pump, and a thermo-sensor protects the pump from overheating when the gun is closed in bypass mode.

Yes — it includes a 10% downstream chemical injector on quick connects, which draws detergent into the water stream after the pump so chemicals never pass through the pump internals.

No, this unit is not for sale in California. Call our team if you're in California and we can point you to a compliant alternative.

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