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CAT INV4000 E - 3200 Watt Electric Start Portable Inverter Generator (CARB)
Model:
INV4000 E
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Features
Grade
Recreational
Style
Portable
Run Watts
3,200 Rated Watts
Surge Watts
4,000
Starting Watts
Engine
Caterpillar

CAT INV4000 E - 3200 Watt Electric Start Portable Inverter Generator (CARB)
Product Video Disclaimer: "PED is not responsible for any variances from the product in this video and the item you purchase. Please review all product specs prior to purchase."
- CAT® INV4000 E Portable Inverter Generator
- Provides clean, reliable power when and where you need it
- Inverter Technology
- Provides clean power with <3% Total Harmonic Distortion (THD)
- Electric Push Button Start w/ Recoil Backup (Battery Included)
- Lithium-Ion battery automatically charges when generator is running
- Includes trickle-charger, to keep prepared for an outage
- 212cc CAT® OHV 4-Cycle Engine
- Fuel-efficient, durable design, with heavy-duty liners for extended life
- Automatic Low-Oil Shutdown Protection
- Helps prevent damage to the engine in a low-oil event
- Engine Smart Control (ESC) Switch
- Will vary engine speed to match the required power output
- Helps conserve fuel, while reducing wear and noise
- Multifunction LCD Smart Display
- Easily monitor real-time power output and fuel usage
- Also provides basic service and fault alerts
- Service, overload, low oil and low battery voltage
- 2.1-Gallon Fuel Tank w/ Low Fuel Level Indicator
- Provides up to 8 hours of run time @ 50% load
- 30-Amp 120-Volt (L5-30) Twistlock Outlet***
- Allows for connection to a manual transfer switch (MTS)
- Allows for connection to a convenience cord
- Parallel Capability
- Allows you to increase your power with another CAT inverter
- Circuit-Breaker Protected Outlets
- Helps prevent against short circuit and overload conditions
- 8.3-Amp 12-Volt DC Outlet
- Ideal for charging batteries; Includes charging cables
- Premium Muffler & USDA Approved Spark Arrestor
- Reduces noise levels & provide safer operation in dry conditions
- Never-Flat Wheels & Foldable Handle
- Makes this generator easy to move over uneven terrain
- Includes Tool Kit & Engine Oil
- Everything you need to get up and running besides gas
- 3-Year Limited Warranty (Must Register within 30 Days)
- Standard 2-Year Limited Warranty if not registered within 30 days
- ***Note - Allows You To Get Maximum Power From Generator
California residents see
Warning: This product can expose you to chemicals including Benzene which is known to the State of California to cause Cancer.
For more information go to: www.p65Warnings.ca.gov
Specifications
Plug Types





INV4000 E

Overview
Weight
103.6 Pounds
Certification
CARB, EPA
Made in USA
No
Consumer Warranty
2 Years
Product Length
25.4 Inches
Product Width
18.5 Inches
Product Height
20.4 Inches
UPC
815683026618
Product Specs
Voltage
120 Single-Phase
Frequency
60 Hertz
Alternator
Inverter
Auto Voltage Regulation
Yes
Rated Watts
3200 Watts
Surge Watts
4000 Watts
Rated Amps
26.6 Amps
Portability Kit
Never Flat Wheels
Tank Size
2.1 Gallons
Run Time @ 50% Load
8 Hours
Fuel Tank Material
Plastic
Fuel Gauge
Yes
Decibel Rating @ 7m
Decibel Rating @ 7m
Sound levels are measured in decibels (dB). The lower the decibel rating, the less noise the product makes. As an example, a ticking watch is 20 dB while on the other end of the scale, a lawn mower is around 90 dB.
61
Idle Control
Yes
Hour Meter
Yes
Battery
Included
Cooling System
Air Cooled
Grade Type
Recreational
CO Sensing
No
Engine
Engine Brand
Caterpillar
Starting System
12-Volt Button Start w/ Recoil
CC
212 CC
Consumer Engine Warranty
2 Years
Low Oil Alert/Shutdown
Yes
Plugs
8.3-Amp DC
1
NEMA 5-20R - GFCI
1
NEMA L5-30R
1
USB
2
Reviews
(12)
Caterpillar INV4000 E Reviews & Ratings
Customer Photos and Videos

Customer Rating
4.58
(12 Ratings)
83% recommend this product
5
(10)

4
(1)

3
(0)

2
(0)

1
(1)

Cat Inv 4000 E For My Travel Trailer
By Mike A.
Oregon
Review Posted 11/17/2023
Have used it camping for 4 years now. Works great, easy start, very quiet, am told that all the time, by other campers. May buy one more for stock, in case they change the model.
Mike A. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Easy To Use, Price, I'd Buy It Again, Easy To Store
Cons:
None
Cat Mechanic Bought This For All My Toys , Love It
By Ricky P.
Rawlins, Wyoming
Review Posted 10/26/2020
Make sure you follow the recommended oil change intervals located in the owners manual. I let mine sit for about 6 months and it did take a bit to get it to fire probably ten cranks, fires right off every other time- it runs better in Texas in warm air than in Wyoming at elevation in cold air but still it doesn’t let me down. I sleep in my truck when on the road sometimes and use this to power a heater and charge my phone etc, it powers my 24ft camper also and I mean you can run the a/c and fridge and lights and watch tv and it runs a little louder due to the increased load so I put it farther away but no issues. I’ve used the usb, the rv twist lock and the 110v outlets and it all works.
Even has a tool kit built into it for service. Changing the oil sucks but I cut a gallon milk jug in half and set the generator on my tailgate letting it hang over just enough to drain the oil into the jug and the mess is unavoidable it gets all inside the bottom but I use brake clean and get as much as I can cleaned up. Overall I love it, it’s very quiet and portable for one guy to pick up without hurting his self. I would buy another. Keep it covered if storing outside.
Even has a tool kit built into it for service. Changing the oil sucks but I cut a gallon milk jug in half and set the generator on my tailgate letting it hang over just enough to drain the oil into the jug and the mess is unavoidable it gets all inside the bottom but I use brake clean and get as much as I can cleaned up. Overall I love it, it’s very quiet and portable for one guy to pick up without hurting his self. I would buy another. Keep it covered if storing outside.
Ricky P. Recommends This
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Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Quiet, High Quality, Exceeded Expectations, Light Weight

Sorry Equipment
By Eric M.
Helena, Montana
Purchased 07/28/2020 |
Review Posted 10/01/2020
It’s a piece of crap and doesn’t run right has to go get fixed. Tried to return this and they refused. I’ll never buy from them again.
Eric M. Does Not Recommend This
Was this review helpful?
Rating Breakdown
1/5
2/5
1/5
1/5
Pros:
None
Cons:
Expensive, Heavy, Unreliable, Bad Instructions

Quiet, Great Features, Cranks A Lot To Get Started??
By Ken D.
San Jose, California
Purchased 08/26/2020 |
Review Posted 09/22/2020
Got the thing outta the Box. Gas n Oiled it, Hit the Start button and it cranked for a few turnovers, hit the start button again, and it cranked for a Few and Farted, Cranked it one more time and it Fired up. Tried the USB outlets n they they worked, tried the Duplex outlet n it worked. I haven’t Tried the Twist Lock yet or the 12volt outlets. It is very Quiet and has a bunch of good features but it is a Pain to Start?? It cranks like a Banchy but does not fire off readily. Guess CAT doesn’t use HONDA for there Engines!!
Ken D. Does Not Recommend This
Was this review helpful?
Rating Breakdown
5/5
4/5
4/5
2/5
Pros:
Quiet, Easy To Use, Features, Easy To Store
Cons:
Bad Instructions, Packaging, Expensive, Hard As HECK TO START

Quiet, Powerful, And Great Performance
By Pedro O.
Lemon Grove, California
Purchased 07/18/2020 |
Review Posted 09/06/2020

I order the Cat INV4000E generator to power what I needed for a mobile detailing truck. Upon arrival there was a hiccup with the spark plug wire being broken in half. However this was fixed asap with the warranty as it was a manufacturer fault as there was no possible way it could have happened during shipping. Since this, I have been using the generator everyday and not only is it much quieter than other mobile detailing setups I have seen, it powers all my machines including the CAT 1800 electric pressure washer. My favorite features are the electric start and fuel gauge to monitor when it is time to fill up.
Pedro O. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Quiet, Price, Easy To Use, High Quality

Great First Impressions
By Haydn C.
Coral Springs, Florida
Purchased 06/18/2020 |
Review Posted 09/02/2020
We bought this generator for home backup after hurricanes. Just to run essentials. It needed to be quite and compact as we live in a town home. This unit is very quiet, my AC unit is louder when running. We have not used it extensively yet, however first impressions are good. Overall build quality looks to be great. Happy with the purchase, especially at the price point.
Haydn C. Recommends This
Was this review helpful?
Rating Breakdown
5/5
4/5
4/5
5/5
Pros:
Quiet, Price, Easy To Use, High Quality

Envy Of The Neighborhood
By Albert B.
Carolina beach, North Carolina
Purchased 07/08/2020 |
Review Posted 08/24/2020
So happy with this purchase. The is quieter than my 2000 watt inverter generator. Used it during recent storm. Powered everything I needed and more. My neighbors all stopped by and couldn’t believe how quiet it was. Had a slight crack in plastic during shipping. Replaced by CAT immediately without question,
Albert B. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Quiet, Easy To Use, Exceeded Expectations, High Quality

Caterpillar INV4000 E Is A Super Generator
By Earl M.
Haines City, Florida
Purchased 07/29/2020 |
Review Posted 08/22/2020
Just received the INV4000 E recently. I live in Florida, so I bought this generator for emergencies. I started the generator up yesterday for the first time and it was super quiet. I feel it was a good purchase and glad I have it, although I hope I don’t need to use it. It is compact and looks to be a well-built unit. I am glad I made the decision to buy a INV4000 E generator from Electric Generators Direct, a super US company.
Earl M. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
4/5
Pros:
Quiet, Features, High Quality, Easy To Store
Cons:
Expensive

Great Unit
By Ryan L.
Bennington, Vermont
Purchased 07/16/2020 |
Review Posted 08/13/2020
Unit is very quiet, will run for a long time under load. Seems very comparable to the hon*a and yama*a units. Runs my 15k camper a/c with ease, only 70% usage on the power bar. Will update after 6 months of usage.
Ryan L. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Quiet, Price, Durable, Exceeded Expectations
Cons:
Heavy

Cat4000 Excellent
By Antonio R.
San Jose, California
Purchased 05/17/2020 |
Review Posted 07/25/2020
Excellent works very well. I have a food trailer with 2 refrigerators a bell with 3 fans and an air conditioning, the CAT4000 very quiet works very good. Excellent purchase.
Antonio R. Recommends This
Was this review helpful?
Rating Breakdown
5/5
5/5
5/5
5/5
Pros:
Features, Quiet, Price, Easy To Use
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