Predator 8750 - Spec Breakdown

The Predator 8750 (57480) is a powerful open frame inverter generator with a rated wattage of 7000 W and a starting wattage of 8750 W.

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Price History
Price history for the Predator 8750
Latest updates:
  • $1,349.99 - April 22, 2022
  • $1,299.99 - March 8, 2022
  • $1,099.99 - March 4, 2022
Data source: harborfreight.com
Since: March 4, 2022
  • Highest Price: $1,349.99 - April 22, 2022
  • Lowest Price: $1,099.99 - March 4, 2022


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 sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
  • Camping and tailgating hobbyists looking for a portable power source
  • Professionals who want to be able to deliver results, even during a power failure

The following sections will present you in detail its power characteristics, the different outlets it offers, its overall portability, the extra features it benefits from, and any relevant emission compliance details.

Power & Run Time

The Predator 8750 in use

The Predator 8750

The Predator 8750's engine, 420 cc (12 hp) OHV 4-stroke, fueled by gasoline, can deliver 120/240V. It provides a running wattage of 7000W and reaches a peak wattage of 8750W.

With a noise rating of 75 dBA (just slightly more noisy than a vacuum cleaner), the inverter generator features a simple traditional pull-start mechanism, but also a convenient and easy-to-use electric starter (battery included).

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

As the 8750 produces a clean sine wave, with a <3% Total Harmonic Disruption (THD), sensitive electronics may be plugged in the AC outlets safely.


The control panel features the upcoming 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 charging of electronics like mobile phones and tablets is made convenient and a 12V 10A receptacle with which charging your batteries is made easy.

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 conventional, open frame design of the Predator 8750 offers stability and allows the generator to be raised above ground level. The generator is designed for ideal use outdoors and in rough environments.

Even though this device may be technically portable (as in movable), manipulation and transportation without special equipment can be a challenge, as it weighs 151 pounds. 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 control center features a convenient meter showing you voltage, frequency and lifetime hours to aid you with the monitoring of its status and activity.

In addition to this info, some light indicators allow you to instantly see if the generator is ready, the generator is on overload and its oil levels are insufficient.

Thanks to a built-in fuel gauge, the inverter generator allows you to quickly, conveniently and easily check the gas level at a glance.

As for its security measures, the device features an automatic low oil shut-off and an overload protection (circuit breaker), letting you 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. It’s a welcomed additional security feature, but don’t forget to always take your generator outside (opens in a new tab).

Along the basic documentation and an owner's manual (opens in a new tab), useful for starting the generator right away, the Predator 8750's package also includes these accessories: battery charging cables, tool kit and funnel.


The Predator 8750 is EPA-approved and CARB-compliant. It can therefore be sold and purchased in all 50 states, including California.

Moreover, it features a spark arrestor, which makes it suitable for use in forested areas.

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).

  • As far as its dry weight is concerned, the Predator 8750 weighs just 151 pounds and thus, it is one of the lighter 6500 to 7500 rated wattage generators. If weight is your top priority, one of the champions in this power category is the Sportsman GEN85KIDF, weighing just 133 pounds.
  • Since the inverter generator's noise is rated at 75 dBA, it has the roughly average expected noise for a device of similar power. If noise emissions are important to you, one of the least noisy generators of this power range is the Powerhorse 7500i with only 55 dBA.
  • Offering up to 15 hours of running time on a full tank at 25% load, the 8750 is within the average autonomy range of similarly powerful generators. If autonomy is your priority, one of the devices of a similar power output with the highest run time is the Powerhorse 7500i, reaching up to 16 hours.
  • Even though run times are undoubtedly important, they are dependent on the fuel capacity to a large extent. For a more wholesome picture, we must take into consideration the fuel consumption of the generator. This inverter generator can be considered as fuel efficient, due to its low estimated fuel consumption of only 0.39 GPH (gallon per hour) at 25% load, within the aforementioned wattage range. If fuel consumption is your top priority, we suggest to check out the Energizer eZV8000, which has a fuel consumption of only 0.35 GPH and thus, is one of the most efficient devices in our database.
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 generators, the Predator 8750 is on the average side of the price range.

Therefore, this generator nicely fits in the expected budget for this kind of product.

The bottom line

  • In the expected price range
  • CO SECURE™ technology
  • Several accessories included
  • GFCI Outlets
  • Electric start
  • Inverter
  • Lightweight for its kind (151 lbs)
  • Fuel efficient
  • Acceptable noise (75 dBA)
  • Decent run time
  • No remote start
  • No parallel ports
  • Weak warranty

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
VoltageAC: 120/240V 60 Hz, DC: 12V
Running watts7000 W
Starting watts8750 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 outlets
  • 2x Duplex 120V 20A (5-20R) GFCI
  • 1x 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
SecurityLow oil and overload protection, CO monitoring
Spark arrestorYes
NeutralBonded to frame
Accessories includedFunnel, tool kit, battery charging cables, battery, and wheel kit
Warranty90 days
Other model numbers57480

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 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 Predator'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 generator sizing calculator.
ItemRunning WattsStarting Watts
At homeDish washer15003000
Electric fry pan15001500
AC (10,000 BTU)15002200
Sump pump (1/2 hp)10502150
Pair of small speakers4545
Total5595 W7095 W
For campingRV AC (11,000 BTU)10101600
RV refrigerator180600
Hair dryer18001900
Electric grill16501650
Toaster oven800800
LED TV150150
Total5590 W6180 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.

Couldn't find the right answer for you? Ask your own question.

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Predator 8750
5.8 Total Score
5 reviews
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5 Reviews
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  1. 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(4) Unhelpful(31)You have already voted this
  2. 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(4) Unhelpful(6)You have already voted this
  3. 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(0) Unhelpful(0)You have already voted this
  4. 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(0) Unhelpful(0)You have already voted this
  5. 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(0)You have already voted this

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