The Predator 3500 (71358) is a quiet and compact inverter generator with a rated wattage of 3,000 W and a starting wattage of 3,500 W. (Read full specs)
ShortlistShortlistedRemoved from shortlist 326
Harbor Freight 
Amazon | Price history for the Predator 3500 |
|---|
| Highest Price $799.99 Lowest Price $599.99 Current Price $799.99 |
Page Content
Description
Zoom on the Predator 3500
In a few words, the Predator 3500 is a quiet and compact portable inverter generator perfectly suited for:
- RV travellers who wish to upgrade their experience to another level
- People occasionally participating in sporting competitions, open-air performances and outdoor festivals
- DIYers who wish to improve their efficiency with tools
- Homeowners who want to be able to use the most necessary devices in their household, even during a blackout
- Camping and tailgating buffs looking to enhance their experience
In the forthcoming sections, you'll delve into its power characteristics, the various outlets it offers, its overall portability, and the additional features it boasts.
Power & Run Time
The Predator 3500
Predator 3500 runs on gasoline, powered by a 212 cc (6 hp) OHV 4-stroke engine, delivering 120V, boasting a running wattage of 3,000W alongside a starting wattage of 3,500W. Moreover, since it is parallel capable (parallel kit (opens in a new tab) not included), its power may be doubled if linked to a second compatible unit.
Enjoying a noise rating of 56 dBA (less noisy than a quiet suburb), this inverter generator can be started thanks to a traditional recoil pull-start mechanism, but also to a simple and elegant electric starter (battery included).
The fuel capacity of 2.64 gallons allows the 3500 to operate for up to 11 hours with a full tank (fuel consumption around 0.24 GPH).
The 3500 generates a clean sine wave: providing <5% Total Harmonic Distortion (THD), delicate electronics can be plugged in its AC outlets safely.
Outlets
The control panel features the upcoming 3 AC outlets:
Furthermore, it showcases 1 DC outlet: there's a 12V 8A receptacle with which you may charge your batteries with ease.
While this Predator generator is not RV Ready, its L5-30R receptacle can be used for a simple RV connection with an L5-30P to TT-30R adaptor (included).
Portability
As the Predator 3500 is an inverter generator, its encased design (L22.8 x W17.3 x H20 in) offers more aesthetics than a conventional, open frame product. This type of design is the most modern and convenient way to recreationally generate power.
Though weighing 102 lbs, the generator remains classified as 'portable,' indicating its capability to be moved, though its weight could pose transport challenges. Nevertheless, the restricted maneuverability is counteracted by its set of 4 wheels and its double handle, enabling easy shifting once the generator is set in place.
Features
The 3500's control panel
Enhancing monitoring capabilities, the 3500 features a digital data center within its control panel, furnishing essential details on the power output, voltage and lifetime run hours for tracking activity and status.
In addition to this info, the light indicators show you if the generator is ready, the generator is overloaded and its oil levels are insufficient.
With its built-in fuel gauge, the inverter generator provides quick and convenient gas level checks.
In terms of security, the generator features an overload protection (circuit breaker) and an automatic low oil shut-off, ensuring peace of mind during its use.
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.
While the standard documentation and an owner's manual (opens in a new tab), helpful for starting the device promptly, come with the Predator 3500, the following accessories are also included: RV adapter, funnel, battery charging cables and tool kit. A storage cover is also available, as a separate purchase.
Product Video
The Predator 3500 versus other generators
The following charts are provided to give you an idea of how some of the key specs of the Predator 3500 compare to inverter generators of similar power (between 2500 and 3500 W).
- At a dry weight of 102 pounds, the Predator 3500 is one of the heavier inverters which can produce between 2500 and 3500 running watts. Regarding dry weight, one of the champions in the same power range is the Pulsar PGD40iSCO, with a dry weight of only 46 lbs.
- With noise levels starting from 56 dBA rating, this inverter generator stands out as one of the quieter options among products of similar type and power. If noise level is one your key decisive factors, you may find the Honda EU3000iS appealing. It's rated at 50 dBA, making it one of the quietest generators in its power range.
- Concerning its runtime, the 3500 provides up to 11 hours at a 25% load, indicating that it falls on the lower side compared to other generators of its type and power range. If you wish to prioritize autonomy, the Champion 200977 shines as one of the top contenders, offering one of the highest run times among generators with similar power output, totaling up to 22 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. Compared to similar devices, this inverter generator is less fuel-efficient than most: it burns around 0.24 gallons of gasoline per hour at a 25% load. If you wish to acquire one of the most gasoline efficient products of this power range, the Energizer eZV3500P, with a fuel consumption of 0.13 GPH could be in your good books.
Here's a list of the most popular specific comparisons:
- Predator 3500 vs Cummins Onan P4500i
- Predator 3500 vs Firman W02981
- Predator 3500 vs Generac GP3000i
- Predator 3500 vs Generac GP3300i
- Predator 3500 vs Generac GP3500iO
- Predator 3500 vs Generac iQ3500
- Predator 3500 vs Honda EG2800i
- Predator 3500 vs Honda EU2200i
- Predator 3500 vs Honda EU3000iS
- Predator 3500 vs Honda EU3200i
- Predator 3500 vs Powerhorse LC4500i
- Predator 3500 vs Predator 2000
- Predator 3500 vs Predator 4000
- Predator 3500 vs Predator 4375
- Predator 3500 vs Predator 4550
- Predator 3500 vs Predator 5000
- Predator 3500 vs Predator 9000
- Predator 3500 vs Predator 9500
- Predator 3500 vs WEN 56380i
- Predator 3500 vs WEN GN400i
Price comparison
As you can see from these interactive charts, when compared to other 2500-3500W inverter generators, the Predator 3500 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
- RV adapter included
- Electric start
- Parallel capable
- Inverter
- Quiet for its power (56 dBA)
- No remote start
- Weak warranty
- On the heavy side (102 lbs)
- Relatively low run time
- Low fuel efficiency
Features and Specifications
| Inverter | Yes |
|---|---|
| Parallel capable | Yes, cable not included |
| RV ready | No |
| Fuel | Gasoline |
| Engine | 212 cc OHV 4-stroke |
| Starting system | Recoil, Electric |
| Warranty | 90 days |
| Voltage | AC: 120V 60 Hz, DC: 12V |
|---|---|
| Running watts | 3,000 W |
| Starting watts | 3,500 W |
| Running amps | 25 amps |
| Peak amps | 29.2 amps |
| Run time @50% load | Unknown |
| Run time @25% load | 11 h |
| GFCI outlets | No |
|---|---|
| Covered outlets | No |
| Automatic Voltage Regulation | Inverter |
| AC outlets |
|
| DC outlets | 1x 12V 8A receptacle |
| Data center | Power output, lifetime run hours and voltage |
| Indicators | Low oil, overload and output ready |
| Fuel tank | 2.64 gal |
| Fuel gauge | Yes |
| Weight | 102 lbs |
|---|---|
| Approx. dimensions (L x W x H) | 22.8 x 17.3 x 20 in |
| Noise (lower limit) | 56 dBA |
| THD | < 5% |
| Compliance | EPA, ANSI/PGMA G300-2023 |
| Security | Low oil and overload protection, CO monitoring |
| Spark arrestor | Yes |
| Neutral | Floating |
| Accessories included | Funnel, tool kit, RV adapter, battery charging cables, and battery |
| Other model numbers | 71358, 59137 |
| UPC | 193175546265 |
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 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 3500 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?
| Item | Running Watts | Starting Watts | |
|---|---|---|---|
| At home | Refrigerator (energy star) | 192 | 1192 |
| Hair dryer | 1800 | 1900 | |
| Blender | 400 | 850 | |
| Total | 2392 W | 3392 W | |
| For camping | Radiant heater | 1300 | 1300 |
| RV refrigerator | 180 | 600 | |
| Toaster oven | 800 | 800 | |
| Radio | 100 | 100 | |
| Total | 2380 W | 2800 W | |
| For work | Grinder | 1400 | 2500 |
| Reciprocating saw | 730 | 960 | |
| Drain cleaner | 250 | 250 | |
| Total | 2380 W | 3480 W |
Does the inverter charge the battery? (Asked April 10, 2020)
The unit will charge its own battery, while running.
Does the Predator 3500 have GPS tracking (Asked September 18, 2020)
The unit does not have such a feature.
are there remote starter kits available for model 63584 3500 watt portable inverter generator (Asked November 27, 2020)
There are no official remote start kits for this unit. However, you may find third-party ones.
Up to what altitude can the predator 3500 run (Asked February 26, 2021)
You'll probably need to rejet the unit above 5000 feet. Learn more on operating portable generators in high altitudes.
How many running hours before oil change is needed on the predator 3500 inverter (Asked April 10, 2021)
Oil shoud be changed once the breaking-in period is complete, then every 6 months or 100 hours of use, whichever comes first. Oil level should also be checked before each use. You may want to refer to the maintenance schedule located page 17 of the owner's manual (opens in a new tab).
How do I clean the air filter on the predator 3500 inverter (Asked April 10, 2021)
For “paper” filter elements: In a well-ventilated area away from bystanders, use pressurized air to blow dust out of the air filter. Wear protective equipment to prevent injury from dust and debris.
For foam filter elements: Wash the element in warm water and mild detergent several times. Rinse. Squeeze out excess water and allow it to dry completely. Soak the filter in lightweight oil briefly, then squeeze out the excess oil.
Does it have a fuel injection (Asked May 13, 2021)
The unit is carbureted.
How much oil does the 3500 W inverter hold? (Asked November 19, 2023)
Engine oil capacity is 20 fl.oz.
What is the valve lash to be set at (Asked July 30, 2024)
Valve clearance settings are the following: intake 0.002″ – 0.003″, exhaust 0.002″ – 0.003″.
2020 predator 3500 inverter do I have to mix gas with oil (Asked December 03, 2024)
The unit has a 4-stroke engine, so no oil-gas mix is required.
Couldn't find the right answer for you? Ask your own question.
User Reviews
Off grid cabin power. Runs 1500 watt heater and 1000w microwave easily. Plus all the lights and power devices I’d normally use at home. Will add a portable a/C unit eventually. Had in use for past 4mos with no problems. Been using 91 octane non-ethanol gas with a stabilizer. Only due to requirements of the 2yr purchased warranty. Replaced the spark plug with an NGK out of the box before I even started it. I built a open ended box to protect against weather. Stays outdoors and is surrounded by mouse poison and such. So far so good.
On,y two issues in 4 years use is the output meter died (HF sent a replacement, no hassle) and the battery’s lives have been short, regardless of the make of battery I’ve used. Minor inconveniences.
Major upsides are fast, reliable startups, the fact it powers both my RV A/C units (with soft starters), charges my power stations and my house when power goes out (Florida hurricanes), and is the quietest generator in its class.Running at high output it might be the quietest ever. But Hondas idle w slightly less noise.
Purchased a year ago been using it in Florida, found out it is NOT weather proof. Guess you’re expected to run it indoors and asphyxiate your family or something. The rain shorts out the sensors and it needs to dry out for a few days before it works again. Good luck
I picked up one of these barely used for a very good price and I’ll have to say I’m very impressed by this generator, it’s very quiet and seems to be efficient, had to replace the carburetor because the eco idle didn’t work (bad stepper motor) and a new carb was cheap enough to replace, I also replaced the jet with one appropriate for my elevation. They use 1 size jet (75) for all carburetors even in the new replacement, It now runs better and doesn’t smell rich anymore. Haven’t run it since I replaced the old carb and jet for a extended period of time. Others who have done the same experience longer run times on a tank of gas so I’m sure I’ll experience the same.
The generator battery will self deplete in about one month. I have a 3500. The internal battery was dead after 30 days of no use. Measurements showed that the generator has a 570uA parasitic load on the battery when it is not running. I little math will show that the battery will be depleted by at least 50% if it is stored for 20 days without running. The sealed 12V 7AH battery will not accommodate repeated depletion without damaging the battery. You will want to add a battery disconnect switch if you do not run the generator often. Walmart sells the battery for about $80. This is another example of Chinese engineering. Otherwise the 3500 is a good value.
Bought this back in November 2020 for the home IF we needed it. Ran fine and was quiet. Shut off and put away. Started / shut it over every 2-3 weeks, running it for 10 minutes or more while using ON/OFF and table grinder. Fast forward to August 2021. Go to start as usual. It WILL NOT START. Checked all the usual stuff – Gas in tank, drained gas from carb to check for bad gas, checked for spark. Still won’t start. Decided to check the carb. Looked OK. Cleaned anyway. Same thing. I did purchase the protection plan when I bought it, so back it went. I got a no hassle swap for a new one, which I don’t plan on opening and will end up selling. While I was impressed when I first got it. my trust in it when I truly may need it is damaged. Up for sale it goes. Looking to buy a Honda for peace of mind. Won’t have all the bells and whistles this one does but I am OK with that. I want reliability.
Bought this 4 years ago and it has 200 hours on it. Runs a 30 amp camper when the power goes out, which is rather often, needed it 2 days ago and a week before that. Twist lock receptacle, which is a must-have. Very quiet when lightly loaded but noisier at half load. Fuel efficiency is very low. Uses a whole gallon of gas to heat 10 gallons of hot water, I’ve done this at least 50 times. No way to check the fuel level without removing both the cap and strainer, you get gas on your fingers and it runs dry occasionally. Never had a problem but the engine runs rich. The exhaust stinks of unburned fuel, for this reason I would not buy another. But it was low cost and has been trouble-free. Oil change is relatively easy. Still using it, but purchased a Champion propane generator which is totally safe to store indoors because there is no gasoline in it. This one must live outdoors in the shed.
This is the first generator I’ve ever bought or used frequently so I don’t know to much about the longevity of these machines but I have to say this little monster is a workhorse! We use it every day, all day long, and sometimes day and night for weeks straight! I currently have 4951 hours of run time on it so far and I don’t know if that’s high for this generator or not but I’m impressed! It is starting to show wear. But I’ll buy another one just like it!
This is my first dry camping generator Purchased in late 2018. This Predator inverter generator has been great. It has started every time via starting switch or pull start. I have ran 92 octane fuel in it and so far haven’t had any issues with not running it for a month to 4 months. Longest stretch not running is between mid November and the end of March. I am very happy with this product and will be installing a tri fuel kit soon.
This thing is an excellent generator for emergency or camping. Because it is so (relatively) quiet. When running an adequate load, think quieter than a lawnmower and louder than a box fan. The readout is simple to understand and the push start is excellent (also has a pull start if you need it). As many online forums mention, it’s recommended to run on ethanol-free fuel, change the oil after the first hour of use (to remove lose debris from engine), and get a magnet oil-cap to help remove shards of metal (best practice for any generator). You won’t find a better value on an inverter.
Predator 3500 has been a great solution for me for 4 years of camping and home emergency use. I run it monthly and use stabil in the gas. I added the remote start option which is nice to start it up for morning coffee before having to go outside. It powers 2 AC units in my RV with Soft Start RV installed.
Costs too much. Weighs too much. Needle valve sticks. Don’t know if it’s compatible to charge Tesla Model 3. It is not dual fuel. No weatherproof housing option.