Predator 8750 - 7000/8750W Open Frame Inverter Generator

The Predator 8750 (59190) is a powerful open frame inverter generator with a rated wattage of 7,000 W and a starting wattage of 8,750 W.

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Price History
Price history for the Predator 8750
Latest updates:
  • $1,149.99 - March 14, 2023
  • $1,199.99 - February 17, 2023
Data source: harborfreight.com
Since: February 17, 2023
  • Highest Price: $1,199.99 - February 17, 2023
  • Lowest Price: $1,149.99 - March 14, 2023


Zoom on the Predator 8750

In a nutshell, the Predator 8750 is a powerful portable inverter generator mostly geared towards:

  • Food truck owners who do not wish to see their business interrupted under any circumstances
  • Homeowners who want to be able to use the most necessary devices in their household, even during a blackout
  • Camping and tailgating hobbyists looking for a portable power source
  • Professionals who want to be able to deliver results, even during a power failure

In the following paragraphs, we shall explore the power characteristics, available outlets, portability, and any additional features of the device, along with its emission compliance information.

Power & Run Time

The Predator 8750 in use

The Predator 8750

The Predator 8750's core is the 420 cc (12 hp) OHV 4-stroke engine, which runs on gasoline. With an output of 120/240V, it provides a running wattage of 7,000W and a peak wattage of 8,750W.

At a noise rating of 75 dBA (just slightly more noisy than a vacuum cleaner), this inverter generator can be started via a conventional pull-start mechanism, or a simple and elegant electric starter (battery included).

The 8750 can operate for up to 15 hours with a full tank (fuel consumption around 0.39 GPH), due to its fuel capacity of 5.9 gallons.

Delicate electronics can be plugged in an AC outlets safely, as the 8750 generates a clean sine wave, reaching a <3% Total Harmonic Distortion (THD).


The control panel features the following 5 AC outlets:

Two Duplexes 120V 20A (5-20R) GFCI
120/240V 30A (L14-30R) receptacle

Furthermore, it has 3 DC outlets: there's two 5V USB ports (USB-A) with which you may charge electronics, for example mobile phones or tablets, conveniently and a 12V 10A receptacle with which you may charge your batteries with ease.

Because the 8750 is equipped with a twist-lock L14-30R receptacle, it is transfer switch ready: it can power your home during a power outage, as it can be easily connected to your breaker box to power your household.


The design of the Predator 8750 is a typical, open frame, offering support and stability and enabling the possibility of raising it above ground level. The featured design is ideal for the outdoors and all tough environments.

Although this generator is technically considered 'portable' (in the sense that it can be moved), its 151 lbs make it incredibly difficult to manually lift and transport. Nevertheless, it can still be moved quite conveniently with the help of its set of wheels (⌀10") and its folding handle, once it is placed on the ground.


Panel of the Predator 8750

The 8750's control panel

The 8750's status and activity may be monitored conveniently via the control panel, as it features a convenient meter, which displays voltage, frequency and lifetime hours.

In addition to this info, some light indicators allow you to instantly see if the oil level is too low, the generator is on overload and the generator is ready.

The fuel level of the inverter generator can be determined quickly, easily, and conveniently with the help of its built-in fuel gauge.

From a security standpoint, the product offers an automatic low oil shut-off and an overload protection (circuit breaker), allowing you to use it with a peace of mind.

The unit also benefits from the Predator's CO SECURE™ carbon monoxide detection. This system monitors the accumulation of CO gas while the generator is running and will shut off the engine if the levels become dangerously high.

Apart from the typical documentation and an owner's manual (opens in a new tab), which lets you start it right away, the Predator 8750 also is packed along with the following accessories: tool kit, funnel and battery charging cables.


The Predator 8750 is EPA-approved and CARB-compliant. Therefore, its sale and purchase are permitted in all of the 50 states, including California.

Moreover, it features a spark arrestor, making it usable in forested areas.

The unit also meets the ANSI/PGMA G300-2018 safety and performance requirements.

Product Videos

The Predator 8750 versus other generators

The following charts are provided to give you an idea of how some of the key specs of the Predator 8750 compare to generators of similar power (between 6500 and 7500 W).

  • In terms of its dry weight, the Predator 8750 stands at only 151 lbs, meaning that is one of the lighter devices of the 6500-7500 rated wattage category If weight is your top priority, one of the champions in this power category is the Sportsman GEN85KIDF, weighing just 133 pounds.
  • Among the generators of a comparable running wattage, this inverter generator with a lowest noise of 75 dBA can be judged as noisy. For those who are looking for a less noisy device, we suggest the Powerhorse 7500i. With just 55 dBA, it is one of the most quiet devices in this power range.
  • The 8750, offering a run time of up to 15 hours with a full tank at a 25% load, falls within the average autonomy range when compared to its peers. If concerned with autonomy, one of the products of a comparable power output, which offers the highest run time, is the DuroMax XP8500EH, boasting with up to 25 hours.
  • While the run time is an important parameter, it is dependent on the fuel tank’s capacity and thus, doesn’t say much on its own unless we consider fuel consumption as well. As this inverter generator uses an estimated 0.39 GPH (gallon per hour) at a 25% load, it finds itself in the average gasoline consumption range of similar products. If you wish to acquire one of the most gasoline efficient products of this power range, the DuroMax XP7500DX, with a fuel consumption of 0.29 GPH could be in your good books.
According to our stats, the following comparison is pretty popular: Predator 8750 vs Predator 9500.

Price comparison

As you can see from this interactive chart, when compared to other 6500-7500W inverter generators, the Predator 8750 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 generator.

The bottom line

  • Inexpensive
  • CO SECURE™ technology
  • Several accessories included
  • GFCI Outlets
  • Electric start
  • Inverter
  • Lightweight for its kind (151 lbs)
  • Decent run time
  • Decent fuel efficiency
  • No 50-amp output
  • No remote start
  • No parallel ports
  • Weak warranty
  • On the noisy side (75 dBA)

Do you own the Predator 8750 and agree (or disagree) with these strengths and weaknesses?

Let us know and write your own review.

Features and Specifications

Parallel capableNo
RV readyNo
Engine420 cc OHV 4-stroke
Starting systemRecoil, Electric
Warranty90 days
VoltageAC: 120/240V 60 Hz, DC: 12V
Running watts7,000 W
Starting watts8,750 W
Running amps (@120/240V)58.3/29.2 amps
Peak amps (@120/240V)72.9/36.5 amps
Run time @50% loadUnknown
Run time @25% load15 h
GFCI outletsYes
Covered outletsYes
Automatic Voltage RegulationInverter
AC outlets1x 120/240V 30A (L14-30R)
DC outlets2x 5V USB port (USB-A)
1x 12V 10A receptacle
Data centerVFT
IndicatorsLow oil, overload and output ready
Fuel tank5.9 gal
Fuel gaugeYes
Weight151 lbs
Approx. dimensions (L x W x H)Unknown
Noise (lower limit)75 dBA
THD< 3%
ComplianceCARB, EPA, ANSI/PGMA G300-2018
SecurityLow oil and overload protection, CO monitoring
Spark arrestorYes
NeutralBonded to frame
Accessories includedFunnel, tool kit, battery charging cables, battery, and wheel kit
Other model numbers59190

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.

Spec Improvement×

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About Predator

Predator portable generators are solely distributed by the Harbor Freight Corporation, which has an impressive list of over 200 trademarked products. The Predator brand is one of their newer lines of outdoor power products. As with many other makes and models of power equipment sold by Harbor Freight, Predator generators are manufactured in China.

Warranty Information

The Predator 8750 is covered under a warranty for up to 90 days. This warranty may be limited and may not cover all parts of the generator.
For more information about the warranty of Predator generators, please consult Harbor Freight's warranty policies stated in the user manual (opens in a new tab). Alternatively, you can also contact their Customer Support : 1-800-444-3353.

Questions & Answers

What can it power?
Examples of items that can be simultaneously powered.
The examples below are based on a maximum load of 80% and estimated wattages. For a more accurate estimation, use our wattage calculator.
ItemRunning WattsStarting Watts
At homeSump pump (1/2 hp)10502150
Furnace fan (1/2 hp)8752350
Refrigerator (energy star)1921192
Electric range21002100
Clothes iron12701270
Total5587 W7062 W
For campingRadiant heater13001300
RV refrigerator180600
Hair dryer18001900
Electric grill16501650
Rice cooker650650
Total5580 W6000 W
For workTable saw18004500
Air compressor (1 hp)16006100
Reciprocating saw730960
Bug zapper8080
Total4210 W8710 W
Does the predator 8750 inverter generator still ship with shipping brackets? (Asked May 18, 2021)

Yes, shipping brackets are installed between the engine and the frame to protect the unit during shipping.

Can you parallel 2-8750 inverter generators. For a 50 amp plug? (Asked October 12, 2021)

The unit does not feature parallel ports.

I need replacement parts for the predator 8750...I need the on /off start switch asap (Asked February 17, 2023)

Replacement parts can be ordered directly from Harbor Freight: 1-800-444-3353.

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Predator 8750
5 Total Score
6 reviews
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User Reviews

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  1. 0.65

    Bought this generator and only used it maybe 15 days. The generator has stopped putting out enough voltage. Harbor Freight is a HORRIBLE company to buy generators from. I am sitting here with this generator and HARBOR FREIGHT cannot tell you how to fix it. DO NOT BUY FROM HARBOR FREIGHT AND DO NOT BUY THIS GENERATOR .

    + PROS:
    • Nothing
    - CONS:
    • Horrible
    Helpful(0) Unhelpful(3)You have already voted this
  2. Avatar
    Ron Reidlinger March 9, 2022 at 12:35 am

    Need a schematic. Price point is excellent as all harbor freight tools are. BUT get what you pay for.mine will not start by Battery.

    + PROS:
    • Good price. Maybe if it will run.
    - CONS:
    • Almost impossible to fill oil. No schematic. Will not start on electric. No idea or part number for alligator clip cable with a angled plug. Have to search for spark plug again as NO SCHEMA TIC
    Helpful(0) Unhelpful(3)You have already voted this
  3. 3.75

    This is an inverter generator and for the price that is a big selling point, however I don’t understand why they recommend using a surge protector with it. I am using one, but don’t see why it is necessary for an inverter.

    + PROS:
    • BIG plus, this is an INVERTER generator.
    - CONS:
    • Quite noisy, but it is outside my house and acceptable. Manual is not very good and incomplete. Oil fill is slow and will overflow before it is completely full, so it must be filled slowly. Will NOT start if it isn’t full of oil. Esc must be off when starting, but can be turned on after it has started running (will slow engine slightly and reduce noise level). Manual doesn’t mention why there is a cord with alligator clips on one end and what looks like an AC plug on the other (looks really dangerous).
    Helpful(3) Unhelpful(0)You have already voted this
  4. 3.75

    Like anything if you take care of it,it will take care of you.Did a lot of research on generators the 8750 was a no brainer if you want to add natural gas,propane it can be done easily.Other predator older model 9000 is still going strong for 551 bucks try to beat that.

    + PROS:
    • Quieter than older model runs great
    - CONS:
    • Warranty HF should give at least a year warranty with the price of this unit
    Helpful(1) Unhelpful(0)You have already voted this
  5. 3.15

    good generator if only had support from Predator when info. neded.

    + PROS:
    • good if we can make starter work again.
    • worked great for one summer only Harbr Freight offers no help.
    - CONS:
    • no info. on wiring, starter not working
    Helpful(5) Unhelpful(6)You have already voted this
  6. Avatar
    John Benites May 3, 2021 at 4:00 pm

    Just bought one today. Had a problem with a bad vendor on the champion version 100520. Have a Honda eu2000 with 550 hours, zero problems, regular maintenance. Needed to power well pump, fridge,freezer, etc. Not for hvac or water heater. Started up great. Nice idle control, about as loud as a riding mower when running close to 7000 watts. Running a 30 amp transfer to main.

    + PROS:
    • Cost effective inverter.
    - CONS:
    • Can be a little loud.(It's not a Honda,lol)
    Helpful(6) Unhelpful(35)You have already voted this

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