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Briggs & Stratton 20647 Spec Review

The Briggs & Stratton 20647 is a gas-powered pressure washer offering a maximum water pressure of 3600 PSI and flow of 2.5 GPM. (Read full specs)

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Description

Commercial Grade. No Compromises. Contractor-specific features and superior construction.

Zoom on the Briggs & Stratton 20647

The Briggs & Stratton 20647, 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, paint-free surfaces and out-of-reach areas
  • thorough cleaning of hard, paint-free surfaces
  • cleaning of painted and fragile 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 Briggs & Stratton 20647 in use

The Briggs & Stratton 20647

With an impressive 205 cc engine, its triplex pump delivers a pressure of 3600 PSI (roughly 60 times more than a standard garden hose) and a flow of up to 2.5 GPM (values claimed by the manufacturer), resulting in the Briggs & Stratton 20647's cleaning power of 9000 Cleaning Units.

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

Gasoline storage is facilitated by a fuel tank with a maximum capacity of 0.83 gallon.

Design & Handling

With its hand truck design, the Briggs & Stratton 20647 provides great mobility. The strong welded steel frame assures assembly longevity. The handle adds to the 20647 convenience of transport.

With a weight of 99 lbs, the model is not lightweight. Therefore, it may be challenging to manually carry it around and transport it. The major reasons for its heavy weight are its 205 cc Vanguard™ engine, the triplex pump and welded steel frame. However, the unit’s two 12" pneumatic wheels are crucial to its maneuverability, since they provide a smooth method of manipulation on the job.

Main Features

The Briggs & Stratton 20647 in use

The Briggs & Stratton 20647

Along with the Briggs & Stratton 20647 itself, the package also includes a spray gun, a wand, a pressure hose, 5 nozzles and a detergent injection feature, which are discussed in further detail below.

  • Soap injection: While the device doesn't feature a soap tank, detergent supply is ensured by a siphon hose. When a soap nozzle is connected, the detergent will be added automatically to the water.
  • Pressure hose: The 35 ft high-pressure hose, which is included with the device, can be stored neatly on the unit itself when idle, using a set of convenient hooks.
  • Spray gun and wand: A side hook enables you to easily store the included classic ergonomic spray gun and its wand.
  • 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 Briggs & Stratton 20647's handy storage area lets you store nozzles and accessories, and thus, you’ll be always prepared and have everything necessary for the job at hand.
  • 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: Besides the usual owner's manual (opens in a new tab) and documentation to get you promptly started, the Briggs & Stratton 20647 comes with soap hose, spray gun, wand, pressure hose and oil.
  • Emissions: The Briggs & Stratton 20647 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 Briggs & Stratton 20647's performance versus other pressure washers

The following charts are provided to give you an idea of how the key specs of the Briggs & Stratton 20647 compare to similarly priced pressure washers.

Note: Even though we couldn’t list its price on this page, our research indicates that some retailers sell this unit around $450.

  • With 3600 PSI, the Briggs & Stratton 20647 ranks as one that can reach the highest pressure, amongst the gas-powered products that cost between $400 and $500.
  • This washer reaches 2.5 GPM (gallons per minute) and thus, has an average water flow compared to similarly priced devices. If maximum rinsing efficiency is your top priority, one of the devices with the highest water flow in the same price range is the Lifan LFQ3370, with a GPM of 3.
  • The 20647, which reaches up to 9000 Cleaning Units (PSI x GPM) is one of the more efficient, in comparison to its similarly priced counterparts. If the highest overall cleaning power is your top priority, the Lifan LFQ3370, which can reach up to 9900 Cleaning Units, is one of the most efficient of the devices in the current price range.

Price comparison

As you can see from this interactive chart, when compared to other gas-powered washers between 9000 and 9500 Cleaning Units, the Briggs & Stratton 20647 is on the cheap side of the price range.

It can therefore be a really good buy if you're looking to acquire a budget pressure washer.

The bottom line

STRENGTHS:
  • Inexpensive
  • Triplex pump
  • Good range of nozzles included
  • Onboard storage
  • Several security features
  • CARB-compliant
  • 5 year (limited) warranty
  • High PSI for the price
  • High CU for the price
AVERAGE SPECS:
  • Decent GPM for the price
WEAKNESSES:
  • No soap tank

Do you own the Briggs & Stratton 20647 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

General
FuelGas-Powered
HandlingHand Truck
WaterCold (100°F max.)
PSI3600
GPM2.5
Cleaning Units9000
Engine205 cc Vanguard™ 4-stroke OHV
PumpAnnovi Reverberi Triplex
Features
FrameWelded steel
Soap injectionVia siphon hose
Nozzles0°, 15°, 25°, 40°, Soap
Quick connect nozzlesYes
Onboard storageYes
Hose35 ft
Hose storageHooks
Misc
Dimensions
(D x W x H)
Unknown
Weight99 lbs
Pressure controlValve
Wheels2 wheels, ⌀12", pneumatic
Included accessoriesOil, wand, spray gun, high pressure hose, soap hose, 5 nozzles
SecurityTrigger lock and thermal relief valve
EmissionsCARB, EPA
Warranty5 years

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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About Briggs & Stratton

Founded in 1908 with an informal agreement between inventor Stephen F. Briggs and investor Harold F. Stratton, this company has become one of the most recognized names in the small engine manufacturing world. Headquartered in Wauwatosa, Wisconsin, USA, the company has manufacturing facilities in five continents. Beginning in the early 2000's, Briggs & Stratton began to acquire other companies such as Generac Portable Power Systems and Simplicity, thereby expanding into the ownership of manufacturing not just engines, but portable outdoor power equipment such as generators, pressure washers, and other home products.

Warranty Information

The Briggs & Stratton 20647 is covered under a warranty for up to 5 years. This warranty may be limited and may not cover all parts of the unit.
For more information about the warranty of Briggs & Stratton pressure washers, please consult Briggs & Stratton's warranty policies (opens in a new tab). Alternatively, you can also contact their Customer Support: 1-800-743-4115.

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