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Predator 4375 Generator

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You may use this PREDATOR® 4375 Watt generator anywhere you need some extra juice, from home backup power to job site gear. This PGMA-compliant generator is equipped with a large fuel tank, GFCI outlets, and a CO SECURETM carbon monoxide shutdown for further safety.

Who makes Predator generators, and where can I buy one?

Harbor Freight Tools produces Predator generators in the United States. Harbor Freight Tools is a corporation with roots in the United States that opened its doors in Calabasas, California in 1977.

The power plants and engines for the Predator were manufactured in China. The engines used to be produced by a Chinese company called the Lifan Group. Location: Chongqing, China. They were given permission to do business in the Middle East, China, South Asia, and Latin America.

In the field of retailing tools and equipment, Harbor Freight Tools, or simply Harbor Freight, has earned a solid reputation.

The company is responsible for the production of numerous high-quality products and the management of a retail outlet network.

  • Inception occurred in 1977.
  • The company's main office may be found in Calabasas, California.
  • The Good Ol' U.S. of A.
  • Executive Vice President and Chief Executive Officer: Eric Smidt.
  • Workforce of 24,000

Harbor Freight Tools sells a wide variety of products in their stores and on their website, including generators, air compressors, drills, automotive tools, hand tools, and much more.

Harbor Freight Tools is well-known for selling high-quality equipment at low prices since the company manufactures and distributes its own products.

As with the rest of the company's offerings, the Predator generator series is covered by the hassle-free return policy and the 100% satisfaction guarantee.

More about Predator generators

It is the distinctive qualities of the Predator's engines and generators that set them apart from those of rival brands.

In the case of carbon monoxide, for instance, Predator generators are equipped with CO SECURE technology that automatically switches down the unit in unsafe conditions.

In addition, the electric start features integrated into Predator generators make it effortless to activate the unit anytime power delivery must be initiated.

To improve the effectiveness and longevity of the Predator engines, some models of the generator feature an Electronic Speed Control mode.

If you plan on using your portable generator in tough conditions, you'll appreciate the 1-1/4 inch steel roll cage that provides excellent protection for some models.

Predator 4375 generator review

3500 Watt Super Quiet Inverter Generator With CO Secure Technology For RVs, Home Back-Up by Predator

This PREDATOR® 4375 has a max starting watt of 4375W, and 3500 running watts and is made to last and to protect its users. The 212cc PREDATOR® gas engine powers the lightweight, portable generator, allowing it to be used anywhere electricity is needed.

The generator's output may be easily monitored with the help of the integrated voltmeter and fuel gauge. With its large fuel tank, it can operate for up to 16 hours on half power.

Notable features

Because of the CO SECURETM technology installed in the generator, it automatically shuts off when unsafe levels of carbon monoxide are detected.

The PREDATOR® 212cc engine is a powerful option for RV air conditioners and other uses.

At a 50 percent load, it may run for up to 16 hours straight.

Shutdown/low oil warning.

Circuit breakers prevent dangerous overloads from occurring accidentally.

The weather and challenging working conditions can be avoided by using outlet covers.

There is a recoil start.

Conforms to ANSI/PGMA G300-2018 standards.


3500 Watt Super Quiet Inverter Generator With CO Secure Technology For RVs, Home Back-Up by Predator

On the control panel, there are five different AC outlets.

In addition to the standard 120V 20A (5-20R) GFCI outlets, there are also 120/240V 30A (L14-30R) duplexes available.

Battery power may be replenished quickly and easily thanks to the unit's single DC outlet with a 12V 8A plug (similar to a cigarette lighter).

The twist-lock L14-30R receptacle included with the 4375 allows you to connect it to a breaker box and use it to power your home in the event of a power outage.


The Predator 4375 has received approval from the EPA and CARB. As a result, it's legal to buy and sell in every one of the United States, including California.

A spark arrestor allows its use in forests as well.

The device also meets all requirements set forth by ANSI/PGMA G300-2018 in terms of both safety and performance.

Fuel efficency

The Predator 4375 is powered by a gasoline-fueled OHV 4-stroke engine with a 212-cc (6.5-horsepower) cylinder displacement that may generate 120/240V. It can produce 4375W at its peak and 3500W at its steady state.

The generator has a typical pull-start and produces 72 dBA of noise, making it only slightly louder than a dishwasher.

The 4375 can run for up to 16 hours on a single tank of gas and can maintain a 50 percent load for that entire time (fuel consumption around 0.3 GPH).

How easy is it to move around

The Predator 4375's dimensions of 23.3 by 18.7 by 19.3 inches provide stability and allow the generator to be elevated off the ground, as does the unit's standard open frame design. This style of construction is suited to rigorous outdoor use and severe conditions.

This generator may be "portable" in the sense that it may be moved from place to place, but at 105 pounds, it is not exactly light. Once it's on the floor, though, a wheel kit (an extra cost) will make it much more movable and convenient to relocate.

Similar generators

The Predator 4375's 105-pound dry weight is typical for generators with a 3000-4000-watt rating. The Genmax GM3300i, at just 47.4 pounds, is one of the lightest and most efficient generators in its power range.

This generator is louder than the average 72 dBA for generators of similar operational wattages. If you're looking for a quieter appliance, the Westinghouse iGen4500DF is a great option. Having a decibel level of only 52, it is one of the quietest devices in its category.

The 4375 has a remarkable run time of around 16 hours at 50% load, making it one of the longest-lasting generators in its power range.

Run times are important, but they must be considered alongside the device's fuel consumption because they are dependent on the fuel capacity. At 50% load, this generator uses an estimated 0.3 GPH (gallon per hour), making it one of the most fuel-efficient options for the aforementioned wattage range.

If you're looking for one of the most fuel-efficient products in this power range, the Genmax GM3300i might be on your list of favorites. It consumes just 0.22 GPH.

Are Predator generators good value?

It is quite difficult to predict how long a Predator engine or generator will last.

How often you use the equipment, how well you maintain it, and the conditions you typically work in all contribute to how long it will last.

If you are careful and treat your generator with care, it should last you a long time; Predator engines and generators are noted for their durability.

In addition to a regular storage and maintenance schedule, you need take precautions to prevent water from damaging your portable generator:

Damage to your portable generator can be avoided by using a cover, steel cage, or pop-up canopy in wet or rainy conditions.

The power outlets for your generator should never be exposed to water. Avoid getting any moisture near the connection and control panel at all costs.

Predator generator range

3500 Watt Super Quiet Inverter Generator With CO Secure Technology For RVs, Home Back-Up by Predator

Predator 9000

Predator 9000 is Harbor Freight's largest and most powerful generator. With a peak power output of 9000 watts and a continuous output of 8750 watts, it can easily power a large house for several days without access to grid electricity. 

The electric start requires a connected battery, but a pull-start is included just in case. The low oil shutdown and indicator are great tools for knowing when to add oil. You can use the seven built-in outlets to power everything, or you can have an electrician wire it correctly. 

With its massive amount of power, this gadget is ideal as a backup generator, but it may also be put to use in a wide variety of different situations. It's huge, people may find it cumbersome, and noisy, to put it briefly but it is an affordable price. The wheel-kit is an optional extra, so keep that in mind.

Predator 8750

The Predator 8750 is Harbor Freight and Predator's second-most powerful portable generator. With a maximum output of 8750 watts and a steady output of 7000 watts, it is capable of powering an entire house for many days in the event of a power outage. 

The low oil indicator/shutdown is an excellent safety feature. In case you don't have a battery for the electric start, you can use the recoil mechanism instead.

A licensed electrician can hook this up to your house in no time at all, supplying energy to the entire structure without risk of backfeeding. This is vital to ensure the safety of those repairing the power loss. 

It's powerful enough to meet your requirements, but it's also huge and heavy and doesn't come with the wheels.

Predator 6500

The similarities between the Predator 6500 and 8750 will be immediately obvious to anyone who has been comparing multiple models. The size of their engines and gas tanks, among other characteristics, are all roughly the same. 

The 8750 has an additional 3-pronged, twist-lock outlet in addition to its extra 2250 peak and 1500 operational watts. But aside from that, these two are essentially interchangeable. If you don't need or don't want the 8750's greater power and can get by with fewer appliances running, this is a decent alternative. 

Moreover, a smaller, less powerful engine of the same size may allow for a greater range on a single tank of gas, depending on your power needs. The pricing is unbeatable, making it a great tool for usage in a variety of settings, including emergency situations, construction sites, recreational activities, and domestic upkeep.

Predator 4000

Due to their limited power output (3200 operating watts for the Predator 4000), smaller generators should only be used in backup or emergency situations. This may be adequate for the time being, but if your refrigerator requires 700W and your stove takes 2500W, you will shortly exhaust your power supply and be unable to continue with power. 

The cheap generator is better suited for job sites or remote applications due to its lightweight design (99 pounds), long runtime (10 hours at 50% efficiency), and identical set of outlets (4x 120V outlets and the 4-prong 240V outlet) as the more expensive 6500. 

It can run most RV air conditioners, making it great for recreational use. Remember that the wheel kit is not included and that it only has a pull-start.

Predator 3500 (4375)

3500 Watt Super Quiet Inverter Generator With CO Secure Technology For RVs, Home Back-Up by Predator

This is the generator the article is named after, and a more indepth review is above. Here is a little reminder though:

The Predator 3500 Inverter Generator is the best predator generator on the market, in my opinion. It's great for any purpose, as it includes a lot of useful features and sufficient processing power. 

The inverter technology allows it to run for 11 hours on a 2.5 gallon gas tank at 50% draw. It won't provide a lot of juice if you use it as a backup power source, but you can get by. This generator stands out due to its exceptionally quiet operation and long runtime. 

This makes it perfect for mobile eateries, camping, RVing, and even football games! Casters make it useful on construction sites, provided that you don't need to transport too many hefty tools. 

The two VAC outlets might be the only real downside, but you might not even need them. Its digital LCD display is digital and it features an electric starter. 

In conclusion, this is a fantastic machine, and if you find that the power it provides is insufficient, you can simply link it in parallel with a second generator to double the output.

Predator 2000

The Predator 2000 Inverter Generator is one of the most popular and competitively priced models despite being the smallest in the entire series. While not ideal for long-term use, it is great for temporary activities like charging batteries or going camping.


Harbor Freight Tools stands behind the quality of their Predator generators with a 90-day guarantee that the products will be defect-free.

When you buy a generator from Predator, you also get a two-year warranty on the emission control system.

These guarantees are still valid if the generator or engine hasn't been mistreated in any way, including improper maintenance, excessive use, or abuse.


The engines and generators produced by Predator are among the best in the industry. The generators can provide consistent power because the engines have a stellar reputation for strength and dependability.

A further attractive quality of many Predator generators is their relatively low noise level and high efficiency.

Most clients will be able to find a Predator generator that works for them because of the large selection available.

About Tom Bell

Hey, I’m Tom, the owner of Generator Reviews! I built this website to help you get the very most out of your generator and select the correct one for your personal circumstances. This site contains reviews of virtually every generator, detailed buying guides, as well as maintenance advice to help you keep yours in tip-top shape!


Generator.Reviews is an independent review business. I am not affiliated with any manufacturers and do not accept paid reviews. When you buy through my links, I may earn a commission which helps me to maintain this website and keep the reviews coming your way!

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