Zoom on the Predator 4375
In summary, the Predator 4375 is a compact portable generator especially useful for:
- RV travellers looking for even more independence
- Occasional participants of outdoor events, competitions, concerts and festivals
- Handcrafting enthusiasts who wish to work on-the-go
- Homeowners who want to be sure of their ability to power their fridges, cooking tools, heating and lighting equipment during power failures
- Professionals who want to be able to deliver results, even during a power failure
In the sections ahead, the power characteristics, availability of various outlets, the portability, and any additional features of the device shall be discussed, including its emission compliance information.
Power & Run Time
The Predator 4375 houses a 212 cc (6.5 hp) OHV 4-stroke engine, which provides 120/240V, consumes gasoline and delivers a running wattage of 3500W along with a peak wattage of 4375W.
The generator is rated for a noise of 72 dBA (just slightly more noisy than a vacuum cleaner). Its starting mechanism is based on a conventional pull-start mechanism.
With a fuel capacity of 4 gallons, the 4375 may run for around 16 hours at 50% load with a full tank (fuel consumption around 0.25 GPH).
The control panel features the upcoming 5 AC outlets:
Additionally, it features 1 DC outlet: there's a 12V 8A (cigarette lighter style) receptacle with which charging your batteries is made easy.
As the 4375 holds a twist-lock L14-30R receptacle, it is transfer switch ready: you'll easily be able to connect it to your breaker box to power your home during a power outage.
The design of the Predator 4375 is a typical, open frame, with the dimensions of L23.3 x W18.7 x H19.3 in, offering support and stability and enabling the possibility of raising it 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 103.5 pounds. However, this lack of maneuverability is compensated by a wheel kit (separate purchase), with which you can conveniently shift it, once it's on the ground.
A light indicator shows you if the oil level is too low.
The fuel level of the generator can be determined quickly, easily, and conveniently with the help of its built-in fuel gauge.
Security-wise, this product benefits from an automatic low oil shut-off and an overload protection (circuit breaker), which gives you a complete peace of mind when using it.
Regarding its accessories, besides the aforementioned features, the Predator 4375's box includes the typical documentation and an owner's manual (opens in a new tab), letting you start it right off the bat.
The Predator 4375 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 and thus, may be used in forested areas.
The Predator 4375 versus other generators
The following charts are provided to give you an idea of how some of the key specs of the Predator 4375 compare to generators of similar power (between 3000 and 4000 W).
- At a weight of 103.5 pounds, the Predator 4375 places in the expected weight range of the generators in the 3000-4000 rated wattage range. If weight is your top priority, one of the champions in this power category is the WEN GN400i, weighing just 66.1 pounds.
- When compared to devices able to produce a similar running wattage, this generator and its lowest emitted noise of 72 dBA is on the noisier side. If you’d prefer a less noisy device, one of the most quiet devices, which share the same power range with this one, is the Cat INV4000E, whose lowest noise levels reach just 51 dBA.
- With a run time of around 16 hours at 50% load, the 4375 has one of the highest run times, compared to its similarly powerful peers.
- 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 generator, with an estimated fuel consumption of just 0.25 GPH (gallon per hour) at 50% load, is one of the more fuel efficient generators, for the previously mentioned wattage range. If you are concerned with gasoline efficiency, having a fuel consumption of just 0.17 GPH, the Westinghouse iGen4200 is a device you should look out for.
Here's a list of the most popular specific comparisons:
As you can see from this interactive chart, when compared to other 3000-4000W generators, the Predator 4375 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
- GFCI Outlets
- High run time
- Fuel efficient
- Decent weight (103.5 lbs)
- No data center
- No electric start
- Wheel kit not included
- Weak warranty
- On the noisy side (72 dBA)
Features and Specifications
|Engine||212 cc OHV 4-stroke|
|Voltage||AC: 120/240V 60 Hz, DC: 12V|
|Running watts||3500 W|
|Starting watts||4375 W|
|Running amps (@120/240V)||29.2/14.6 amps|
|Peak amps (@120/240V)||36.5/18.2 amps|
|Run time @50% load||16 h|
|Run time @25% load||Unknown|
|Automatic Voltage Regulation||Yes|
|AC outlets|| |
|DC outlets||1x 12V 8A (cigarette lighter style)|
|Fuel tank||4 gal|
|Approx. dimensions (L x W x H)||23.3 x 18.7 x 19.3 in|
|Noise (lower limit)||72 dBA|
|Security||Low oil and overload protection|
|Neutral||Bonded to frame|
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.
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.
The Predator 4375 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?
|Item||Running Watts||Starting Watts|
|At home||Electric fry pan||1500||1500|
|Sump pump (1/2 hp)||1050||2150|
|Refrigerator (energy star)||192||1192|
|Set of 5 LED light bulbs||55||55|
|Total||2797 W||3897 W|
|For camping||RV AC (11,000 BTU)||1010||1600|
|Electric fry pan||1500||1500|
|Total||2790 W||3380 W|
|Total||2740 W||3840 W|
Is there a drain plug for gas on the generator for long term storage? (Asked April 29, 2020)
It doesn't seem that there are any. I'd suggest to contact Harbor Freight to make sure.
Does this generator have an inverter? (Asked June 10, 2020)
This unit is not an inverter generator.
how do i change the oil (Asked August 21, 2020)
Oil change procedure is detailed page 17 of the owner's manual (opens in a new tab).
What spark should I use and what is the gap setting (Asked August 23, 2020)
Spark plug type is NHSP/Torch F6TC. Gap setting is 0.027" – 0.031".
What kind of oil (Asked August 28, 2020)
Recommended engine oil is SAE 10W – 30 above 32° F, and SAE 5W – 30 at 32° F or below
What grade of gas? (Asked September 08, 2020)
Recommended gas is 87 octane or higher unleaded gasoline that has been treated with a fuel stabilizer additive.
Do you have to ground this generator predator 4375 (Asked September 08, 2020)
It is always safer to ground your generator.
Can I connect my RV 30 amp cord into the 120/240V 30A (L14-30R) receptacle? The panel says 15A max??? (Asked October 10, 2020)
You absolutely can. You just won't pull more than 15A amps out of it.
Can the 4375 be connected directly to the my homes' main panel box? (Asked October 17, 2020)
It can be connected to a transfer switch. Note that this connection should be made by a licensed electrician.
How much oil does the Predator 4375 hold? I cannot find that info anywhere. (Asked November 01, 2020)
Engine oil capacity is 0.6 quarts.
Does this model have carbon monoxide that automatically shuts off if level gets too high? If machine is placed 30ft from home with "exhaust" pointed away from home safe enough?can strong wind blow CO back to home at a dangerous level? As home health nurse,I had 2 patients,separate cases I had send to morgue,so I know danger! (Asked December 27, 2020)
Can the generator be ran in snowy conditions (Asked February 15, 2021)
Please refer to our article on operating a generator in bad weather.
My question concerns the 240 volt outlet total amperage output. It lists here at (1x 120/240V 30A (L14-30R). So I take this to mean 30 amps even though the label painted on the side says 15 amps maximum. 30 amps would make sense as its combining both of the 15 amp 120 volt circuits. The 4375, the 6500, and the Predator 9000 all list identical outputs in the descriptions but on the unit they differ. So just trying to confirm total amp output as I plan on hooking up to the house panel. (Asked February 17, 2021)
It means that the outlet is 30 amps, as per its NEMA nomenclature (L14-30R). For the Predator 4375, this outlet won't output more than 15 amp. 15A x 240V = 3600W.
What are the valve gaps set at (Asked March 09, 2021)
Intake 0.004" – 0.006", Exhaust 0.006" – 0.008"
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