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Generac 7899 - 2900 PSI 2.4 GPM 196cc Gas Pressure Washer

The Generac 7899 is a gas-powered pressure washer offering a maximum water pressure of 2900 PSI and flow of 2.4 GPM. (Read full specs)

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Generac 7899 2900PSI Gas Pressure WasherGenerac 7899 2900PSI Gas Pressure WasherGenerac 7899 2900PSI Gas Pressure WasherGenerac 7899 2900PSI Gas Pressure Washer
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Features and Specifications

FuelGas-Powered
HandlingHand Truck
WaterCold (100°F max.)
PSI2900
GPM2.4
Cleaning Units6960
Engine196cc Generac 4-stroke OHV
PumpAxial Cam
Pump materialAluminum
SeriesSpeedWash™
FrameSteel
Soap injectionYes
Soap tank0.5 gal
Soap dilutionNo
Nozzles0°, 25°, 40°, Soap, Turbo
Quick connect nozzlesYes
Onboard storageYes
Hose25 ft, ⌀1/4
Hose storageHooks
Dimensions
(D x W x H)
Approx. 24.2 x 18.9 x 35.5 in
Weight57 lbs
Pressure controlVia gun
Wheels2 wheels, ⌀10", never flat
Included accessoriesOil, funnel, wand, PowerDial spray gun, high pressure hose, 5 nozzles, Soap Blaster nozzle
SecurityTrigger lock and thermal relief valve
EmissionsCARB, EPA
Warranty3 years
UPC696471077315

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

Generac’s SpeedWash™ residential grade pressure washers provide you with a complete washing system featuring best-in-class cleaning power. This complete cleaning system includes a family of innovative cleaning attachments to deliver better cleaning results in less time. (source: Generac (opens in a new tab))

Zoom on the Generac 7899

In a nutshell, the Generac 7899 is a heavy duty pressure washer, which not only offers an all-around versatile cleaning experience, but that also allows:

  • focused spot cleaning on hard, unpainted surfaces, accessing high spots, and efficiently eliminating stubborn stains
  • gentle cleaning for sensitive surfaces, and wide coverage cleaning with low pressure
  • applying detergents or chemicals, and rinsing surfaces afterward

Ahead are presented its power characteristics and design, its main features and any other additional features.

Power

The Generac 7899 in use

The Generac 7899

With a 196cc engine powering it, the aluminum axial cam pump of this unit are capable of achieving a pressure of 2900 PSI (approximately 48 times greater than that of a standard garden hose) and a flow rate of up to 2.4 GPM (values claimed by the manufacturer). Corresponding to these values is a cleaning power of 6960 Cleaning Units.

Initiating the Generac engine of this gas pressure washer is achieved through a classic pull-start process.

Gasoline is stored in a fuel tank with a maximum capacity of 0.8 gallon.

Design & Handling

Enhanced mobility is a key feature of the Generac 7899, thanks to its hand truck design. The sturdy steel frame ensures the longevity of the assembly, offering stability and protection for internal components, even during rigorous use. The rubber-padded fixed handle adds to the 7899 convenience of transport, while offering a comfortable grip.

With its 57 lbs weight, this unit offers a manageable size that allows for easy handling by most individuals, enhancing user convenience during operation. The incorporation of the 196cc Generac engine and a durable steel frame contribute considerably to its overall weight. Still, the 7899's two 10" never-flat wheels ensure easy handling and maneuverability.

Main Features

The Generac 7899 in use

The Generac 7899

The Generac 7899'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: A safe detergent storage is facilitated by a 0.5 gal tank. However, since the Generac 7899 does not feature a soap dilution mechanism, you'll have to make sure your detergent is correctly diluted before use. The pressure washer automatically dispenses and mixes the detergent with the water when a soap nozzle is attached.
  • Pressure hose: With a set of convenient hooks, the unit provides a convenient way to store the included 25 ft ⌀1/4" high-pressure hose (3400 PSI rating) when not in use, keeping it organized and readily accessible.
  • Spray gun and wand: A side hook allows for an easy storage of the included PowerDial spray gun and its wand.
  • Nozzles: The following table provides information on the 5 included nozzles and their recommended surface uses.


25°

40°

Soap

Turbo
Concrete, brick, masonryUse with cautionSuitableSuitableSuitableUse with caution
Siding, gutters, houseNot recommendedUse with cautionSuitableSuitableNot recommended
Fencing, deck, patioNot recommendedUse with cautionSuitableSuitableNot recommended
Lawn equipment, boat, RVNot recommendedUse with cautionUse with cautionSuitableNot recommended

Important note: The shapes of the depicted nozzles serve for illustration purposes only and may vary. Symbols used include a red cross for 'Not recommended,' a green check for 'Suitable,' and an orange check for 'Use with caution.'

Other Features

Some of the accessories of the Generac 7899

Some of the included accessories

  • PowerDial™ gun: The PowerDial™ ergonomic spray gun features 4 different power modes, which can be selected simply, according to your cleaning task – soap, wood, concrete or car.
  • Soap Blaster: The Soap Blaster attachment achieves a 3x longer spraying distance than a standard nozzle tip, allows you to penetrate tough stains and improves your overall cleaning results.
  • Onboard storage: Stay prepared for any job with Generac 7899's handy storage area, which allows you to neatly store any nozzles and accessories which you may need for the job.
  • Pressure control: Water pressure can be manually changed, using the adjustable throttle of the trigger gun.
  • Safety: Safety of operation is enhanced by a trigger lock mechanism (which prevents accidental operation) and a thermal relief valve (which helps to prevent internal pump damage).
  • Accessories: On top of an owner's manual and the usual documentation to get you swiftly started, the Generac 7899 also comes with pressure hose, Soap Blaster nozzle, funnel, wand, spray gun and oil.

Product Videos

The Generac 7899's performance versus other pressure washers

The following charts are provided to give you an idea of how the key specs of the Generac 7899 compare to similarly priced pressure washers.

  • The Generac 7899 and its 2900 PSI, ranks amongst gas-powered pressure washers with a comparably low pressure output, considering the units that cost between $400 and $500. As for the device with the most powerful water stream, in this price range, one of the top products is the Simpson PS61201 with 3500 PSI.
  • In comparison to other devices in the above-mentioned price range, this washer and its 2.4 GPM (gallons per minute), has one of the lower GPM values. When it comes to efficiently rinsing away debris, one standout option within this price range is the Lifan LFQ3370E, delivering an impressive 3 GPM.
  • The 7899's Cleaning Units, 6960 CU (PSI X GPM), fall into the lower end when compared to gas-powered devices of similar price. When it comes to the highest overall cleaning power in the current price range, one of the products at the very top currently is the Lifan LFQ3370E and its 9900 Cleaning Units.

Price comparison

As you can see from these interactive charts, when compared to other gas-powered washers between 6500 and 7000 Cleaning Units, the Generac 7899 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:
  • Good range of nozzles included
  • Onboard storage
  • Several security features
WEAKNESSES:
  • On the expensive side
  • No detergent dilution mechanism
  • Low PSI for the price
  • Low GPM for the price
  • Low CU for the price

Do you own the Generac 7899 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 7899 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).

Generac 7899
5 Total Score
1 review
Add your review
Ease Of Use
10
Value
1
Quality
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Performance
8
1 Review
  1. 2.5
    Ease Of Use
    100
    Value
    10
    Quality
    10
    Performance
    80

    Can’t get replacement parts

    + PROS: While it worked it worked great but if you can't get replacement parts than useless
    - CONS: I can't find replacement parts for the washers. I've looked on line and all I get is discontinued. For this reason I won't buy a Generac anything
    Helpful(1) Unhelpful(0)You have already voted this

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