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Generac XC4000W - 4000 PSI 3.5 GPM Gas Pressure Washer With Honda Engine

The Generac XC4000W #8872 is a gas-powered pressure washer offering a maximum water pressure of 4000 PSI and flow of 3.5 GPM. (Read full specs)

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Generac XC4000W 4000PSI Gas Pressure WasherGenerac XC4000W 4000PSI Gas Pressure WasherGenerac XC4000W 4000PSI Gas Pressure WasherGenerac XC4000W 4000PSI Gas Pressure Washer
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Features and Specifications

FuelGas-Powered
HandlingWheelbarrow
WaterCold (100°F max.)
PSI4000
GPM3.5
Cleaning Units14000
Engine389cc Honda GX390 OHV 4-stroke
PumpCAT Triplex
Pump materialAluminum
SeriesXC
Other model numbers8872
FrameWelded steel
Soap injectionVia siphon hose
Nozzles0°, 15°, 25°, 40°, Soap
Quick connect nozzlesYes
Onboard storageYes
Hose35 ft, ⌀3/8
Hose storageNone
Dimensions
(L x W x H)
Approx. 51.5 x 23.3 x 32.5 in
Weight150 lbs
Pressure controlValve
Wheels3 wheels, ⌀10", never flat
Included accessoriesStainless steel wand, spray gun, high pressure hose, soap hose, 5 nozzles
SecurityLow oil, trigger lock and thermal relief valve
EmissionsCARB, EPA
Warranty3 years
UPC696471079845

Unlike many websites, we did our best to research each of the specs above. That being said, we are not immune to making the occasional mistake or omission. Should you notice any missing or incorrect values, don't hesitate to suggest improvements so we can address the issue.

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Description

Zoom on the Generac XC4000W

The Generac XC4000W, a heavy duty, commercial pressure washer, gives its user an all-around versatile cleaning experience, topped off by the following features:

  • spot cleaning of hard, paintless surfaces and reaching far-away areas
  • intense cleaning of tough, paintless surfaces
  • cleaning of painted and fragile surfaces
  • applying detergent and cleaning solutions

Its power characteristics and design, its main features and all its additional features are presented ahead.

Power

With a powerful 389cc engine, its aluminum triplex pump delivers a pressure of 4000 PSI (roughly 67 times more than a standard garden hose) and a flow of up to 3.5 GPM (values claimed by the manufacturer), resulting in the Generac XC4000W's cleaning power of 14000 Cleaning Units.

The Honda GX390 engine of this gas-powered pressure washer gets started by a classic pull-start mechanism.

The fuel is stored in a steel tank, which can hold up to 1.52 gallon of gasoline.

Design & Handling

The wheelbarrow design of the Generac XC4000W grants mobility and stability to the unit. Its sturdy welded steel frame provides longevity to the assembly. The folding handle enhances its mobility, while allowing for a convenient storage.

With a weight of 150 lbs, the model is not lightweight. Therefore, it may be challenging to manually carry it around and transport it. The main contributors to its weight are its 389cc Honda GX390 engine, the triplex pump and welded steel frame. However, its three 10" never-flat wheels play an important part in its maneuverability, as they allow for a smooth manipulation on the job.

Main Features

The Generac XC4000W's package includes a spray gun, a wand, a pressure hose, 5 nozzles and a detergent injection feature, with a more detailed description below.

  • Soap injection: The XC4000W does not feature a traditional soap tank. Instead, the detergent is supplied by a siphon hose. For this purpose, it has an integrated 5 gallon bucket holder that can hold cleaning detergent or serve as an additional onboard storage for tools and accessories. This bucket holder can be folded to save storage space. When a soap nozzle is connected, the detergent will be added automatically to the water.
  • Pressure hose: An easy-to-connect 35 ft ⌀3/8" high-pressure hose (4200 PSI rating) is included with the unit. However, it doesn't feature any proper storage solution for it (no reel, strap or hook).
  • Spray gun and wand: A side hook allows for an easy storage of the included classic ergonomic spray gun and its stainless steel wand. A rotating auxiliary side handle further improves both left-handed and right-handed users' comfort.
  • Nozzles: The table below shows you the 5 included nozzles, as well as the surfaces they're the most appropriate for.


15°

25°

40°

Soap
Concrete, brick, masonryUse with cautionSuitableSuitableSuitableSuitable
Siding, gutters, houseNot recommendedUse with cautionUse with cautionSuitableSuitable
Fencing, deck, patioNot recommendedUse with cautionUse with cautionSuitableSuitable
Lawn equipment, boat, RVNot recommendedUse with cautionUse with cautionUse with cautionSuitable

Note: The shape of the nozzles above is for illustration purposes only and may differ.
Red cross: Not recommended. Green check: Suitable. Orange check: Use with caution.

Other Features

  • Onboard storage: The Generac XC4000W allows you to be always fully prepared, as it features a handy storage area, where nozzles and accessories can be stored.
  • Safety: Safety of operation is enhanced by a thermal relief valve (which helps to prevent internal pump damage), a low oil protection and a trigger lock mechanism (which prevents accidental operation).
  • Accessories: On top of an owner's manual (opens in a new tab) and the usual documentation to get you swiftly started, the Generac XC4000W also comes with soap hose, spray gun, pressure hose and wand.
  • Emissions: The Generac XC4000W is EPA-approved and CARB-compliant. Therefore, the sale and purchase of this pressure washer is permitted in all of the 50 states, including California.

Product Video

The Generac XC4000W's performance versus other pressure washers

The following charts are provided to give you an idea of how the key specs of the Generac XC4000W compare to similarly priced pressure washers.

  • The Generac XC4000W and its 4000 PSI, ranks amongst gas-powered pressure washers with a comparably low pressure output, considering the units that cost between $1400 and $1800. If the highest possible power of the water stream is your priority, one of the champions in this price range is the Lifan LFQ4515E-Elite with 4500 PSI.
  • In the aforementioned price range, this washer, with 3.5 GPM (gallons per minute), is placed on the lower end of the GPM scale. If rinsing away debris most efficiently is your priority, one of the devices with the highest GPM in this price range is the DeWalt DH4240B, which can reach up to 4 GPM.
  • The XC4000W ranks as below average in terms of Cleaning Units, compared to gas-powered devices in its price range, reaching only a value of 14000 CU (PSI X GPM). If the highest overall cleaning power is your top priority, the Lifan LFQ4515E-Elite, which can reach up to 18000 Cleaning Units, is one of the most efficient of the devices in the current price range.

Price comparison

As you can see from these interactive charts, when compared to other gas-powered washers between 13800 and 14700 Cleaning Units, the Generac XC4000W is on the expensive side of the price range.

While certainly not the cheapest of its cleaning power range, purchasing it could most likely also mean enjoying the reliability of a high-end product.

The bottom line

STRENGTHS:
  • Triplex pump
  • Honda engine
  • Designed to be stable
  • Good range of nozzles included
  • Foldable bucket holder
  • Onboard storage
  • Several security features
  • CARB-compliant
WEAKNESSES:
  • On the expensive side
  • No pressure hose storage
  • Low PSI for the price
  • Low GPM for the price
  • Low CU for the price

Do you own the Generac XC4000W and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

About Generac

Founded in a garage in Wales, Wisconsin by Robert Kern and five employees, Generac has been a leader in power generation systems since 1959. In the early 1960s, Generac began producing electric generators for Sears and Roebuck Company. During the 1970s the company began to manufacture other outdoor power equipment such as electric chainsaws, pressure washers, and welders. Generac, now a subsidiary of CCMP Capital, continues to be headquartered in Waukesha, with manufacturing facilities in four other cities in Wisconsin USA.

Warranty Information

The Generac XC4000W is covered under a warranty for up to 3 years. This warranty may be limited and may not cover all parts of the unit.
For more information about the warranty of Generac pressure washers, please consult Generac's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-888-GENERAC (888-436-3722).

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