A-iPower APW4200 Spec Review

The A-iPower APW4200 is a gas-powered pressure washer offering a maximum water pressure of 4200 PSI and flow of 4 GPM. (Read full specs)

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A-iPower APW4200 4200PSI Gas Pressure Washer
A-iPower APW4200 4200PSI Gas Pressure Washer
A-iPower APW4200 4200PSI Gas Pressure Washer
A-iPower APW4200 4200PSI Gas Pressure Washer
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Set an alert for the A-iPower APW4200 - Current lowest price: $599.00
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Price History
Price history for the A-iPower APW4200
Latest updates:
  • $599.00 - October 3, 2020
  • $821.99 - September 6, 2020
  • $820.00 - August 13, 2020
  • $825.00 - July 13, 2020
Data source: ebay.com
Since: July 13, 2020
  • Highest Price: $825.00 - July 13, 2020
  • Lowest Price: $599.00 - October 3, 2020


The A-iPower APW4200 is built to handle your toughest job. Powered by a reliable Senci 420CC Heavy Duty OHV gasoline engine that feeds into an AR (Annovi Reverberi) brand Tri-Plex Brass Head Pump, it delivers a powerful 4,200 PSI of cleaning power at 4.0 gallon per minute, that’s over 16,000 Cleaning Units to handle the toughest job

Zoom on the A-iPower APW4200

The A-iPower APW4200, 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, unpainted surfaces or high reach areas
  • thorough cleaning of hard, paint-free surfaces
  • cleaning of painted and fragile surfaces
  • use of detergent and cleaning solutions

The following sections will present you in detail its power characteristics and design, its main features and all the additional features it has to offer.


The A-iPower APW4200 in use

The A-iPower APW4200

With an impressive 420 cc (14 hp) engine, its brass triplex pump delivers a pressure of 4200 PSI (roughly 70 times more than a standard garden hose) and a flow of up to 4 GPM (values claimed by the manufacturer), resulting in the A-iPower APW4200's cleaning power of 16800 Cleaning Units.

A classic pull-start mechanism is responsible for starting the gas-powered pressure washer’s Senci SC420 engine.

Gasoline is stored in a fuel tank with a maximum capacity of 1.7 gallon.

Design & Handling

The A-iPower APW4200 offers superb mobility, with a hand truck design and approximate dimensions of D32 x W26.5 x H36 in. The robust and sturdy steel tubing frame offers longevity to the assembly. The handle adds to the APW4200 convenience of transport.

The unit's weight of 132 lbs renders its carrying and transportation challenging, as it is far from lightweight. The main contributor to its weight are its 420 cc Senci SC420 engine, the triplex pump and steel tubing frame. However, the unit is mobile thanks to its two 12" never-flat wheels, which add to its movability and allow it to be manipulated smoothly on the job.

Main Features

The A-iPower APW4200 in use

The A-iPower APW4200

The A-iPower APW4200'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: While the device doesn't feature a soap tank, detergent supply is ensured by a siphon hose. The detergent is automatically added to the water when a soap nozzle is connected.
  • Pressure hose: The 50 ft ⌀5/16" high-pressure hose (5000 PSI rating), 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: The included classic ergonomic spray gun and its wand can be easily 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.




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

Some of the accessories of the A-iPower APW4200

Some of the included accessories

  • Onboard storage: With the A-iPower APW4200's handy storage area, you’ll always have all the necessary nozzles and accessories at hand and thus, you’ll be fully prepared for any job.
  • 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 and the usual documentation to get you swiftly started, the A-iPower APW4200 also comes with tool kit, oil, funnel, wand, pressure hose, soap hose and spray gun.
  • Emissions: The A-iPower APW4200 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.

The A-iPower APW4200's performance versus other pressure washers

The following charts are provided to give you an idea of how the key specs of the A-iPower APW4200 compare to similarly priced pressure washers.

  • The A-iPower APW4200, reaching a PSI of up to 4200, is one of the most powerful gas-powered units in $500-600 price range.
  • With a maximum GPM of 4 (gallons per minute), this washer belongs to the best in terms of water flow, in its respective price range.
  • Boasting with 16800 Cleaning Units (PSI x GPM), the APW4200 is one of the most efficient devices in its respective price range.

Price comparison

As you can see from this interactive chart, when compared to other gas-powered washers between 16500 and 17000 Cleaning Units, the A-iPower APW4200 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

  • Inexpensive
  • Triplex pump
  • Good range of nozzles included
  • Onboard storage
  • Several security features
  • CARB-compliant
  • High PSI for the price
  • High GPM for the price
  • High CU for the price
  • No electric start
  • No soap tank

Do you own the A-iPower APW4200 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

HandlingHand Truck
Cleaning Units16800
Engine420 cc 14 HP Senci SC420 4-stroke OHV
PumpAnnovi Reverberi RSV4G40 Triplex
Pump materialBrass
FrameSteel tubing
Soap injectionVia siphon hose
Nozzles0°, 15°, 25°, 40°, Soap
Quick connect nozzlesYes
Onboard storageYes
Hose50 ft, ⌀5/16
Hose storageHooks
(D x W x H)
Approx. 32 x 26.5 x 36 in
Weight132 lbs
Pressure controlValve
Wheels2 wheels, ⌀12", never flat
Included accessoriesOil, funnel, tool kit, wand, spray gun, high pressure hose, soap hose, 5 nozzles
SecurityLow oil, trigger lock and thermal relief valve
EmissionsCARB, EPA
Warranty1 year

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.

About A-iPower

A-iPower, which stands for American Innovation, is a subsidiary of SENCI Electric Mechanical Co. Ltd. Headquartered in Ontario, California, they have an engineering office in Charlotte, NC, and technical and distribution center in Milwaukee, WI. For almost 30 years, A-iPower has been dedicated to providing excellent customer service and product solutions for a wide range of consumer and commercial power generation equipment. They offer portable generators, pressure washers, gasoline engines, and water pumps for the professional trade and homeowners.

Warranty Information

The A-iPower APW4200 is covered under a warranty for up to 1 year. This warranty may be limited and may not cover all parts of the unit.
For more information about the warranty of A-iPower pressure washers, please contact the A-iPower Customer Support: 1-855-888-3598.

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