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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

General
FuelGas-Powered
HandlingHand Truck
WaterCold (100°F max.)
PSI2900
GPM2.4
Cleaning Units6960
Engine196cc Generac 4-stroke OHV
PumpAxial Cam
Pump materialAluminum
SeriesSpeedWash™
Features
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
Misc
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 summary, the Generac 7899 is a heavy duty pressure washer, that offers an all-around versatile cleaning experience, and also:

  • spot cleaning of hard, paint-free surfaces and out-of-reach areas
  • cleaning of painted or delicate surfaces
  • application of detergent and cleaning solutions

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, its aluminum axial cam pump delivers a pressure of 2900 PSI (roughly 48 times more than a standard garden hose) and a flow of up to 2.4 GPM (values claimed by the manufacturer), resulting in the Generac 7899's cleaning power of 6960 Cleaning Units.

A classic pull-start mechanism is responsible for starting the gas-powered pressure washer’s Generac engine.

Gasoline storage is facilitated by a fuel tank with a maximum capacity of 0.8 gallon.

Design & Handling

Thanks to its hand truck design and approximate dimensions of D24.2 x W18.9 x H35.5 in, the Generac 7899 offers great mobility. The robust and sturdy steel frame offers longevity to the assembly. The rubber-padded fixed handle adds to the 7899 convenience of transport, while offering a comfortable grip.

Weighing 57 lbs, the unit is easy to maneuver by most people. A major component of its weight are its 196cc Generac engine and steel frame. The 7899 can still be easily manipulated and maneuvered, thanks to its two 10" never-flat wheels.

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: Detergent storage is ensured by a 0.5 gal tank. It must be noted that the Generac 7899 doesn’t come with a soap dilution mechanism. Therefore, you must always make sure that your detergent is correctly diluted. The detergent will be added automatically to the water when a soap nozzle is attached.
  • Pressure hose: A neat storage for the included 25 ft ⌀1/4" high-pressure hose (3400 PSI rating) is facilitated by a set of convenient hooks.
  • Spray gun and wand: Both the PowerDial spray gun and its wand may be conveniently stored in a side hook.
  • Nozzles: The 5 nozzles included with the device, and the respective surfaces which they’re the most suitable for, are shown in the following table.


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

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

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: The Generac 7899 features a handy storage area, which allows you to neatly store nozzles and accessories and be always prepared by having everything needed at hand.
  • Pressure control: Water pressure can be manually changed, using the adjustable throttle of the trigger gun.
  • Safety: Safety of operation is enhanced by a thermal relief valve (which helps to prevent internal pump damage) and a trigger lock mechanism (which prevents accidental operation).
  • Accessories: The Generac 7899 comes with an owner's manual (opens in a new tab) and some basic documentation to get you quickly started. On top of that, you also get Soap Blaster nozzle, spray gun, funnel, oil, wand and pressure hose.
  • Emissions: The Generac 7899 is EPA-approved and CARB-compliant. And so, this pressure washer is available for sale and purchase in any of the 50 states, including California.

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 PS60995 with 3600 PSI.
  • When compared to devices in the above-mentioned price range, this washer and its 2.4 GPM (gallons per minute), is on the lower end of the achievable water flow. In case you are looking for a device which can most efficiently rinse away debris in the current price range, the Predator 3200 has the highest GPM of 2.8.
  • Amongst similarly priced gas-powered devices, the 6960 Cleaning Units (PSI X GPM) of the 7899 rank as low. If you are after the highest overall cleaning power, the Simpson PS60995 with its 9000 Cleaning Units is one of the products that can achieve the highest cleaning efficiency in this price range.

Price comparison

As you can see from this interactive chart, when compared to other gas-powered washers between 6500 and 7000 Cleaning Units, the Generac 7899 is on the average side of the price range.

Therefore, this pressure washer nicely fits in the expected budget for this kind of cleaning power.

The bottom line

STRENGTHS:
  • In the expected price range
  • Good range of nozzles included
  • Onboard storage
  • Several security features
  • CARB-compliant
WEAKNESSES:
  • 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
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Ease Of Use
10
Value
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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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