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The Best 4500W Generator of 2023 – Reviewed and Top Rated

After hours researching and comparing all models on the market, we find out the Best 4500W Generator of 2023. Check our ranking below.

2,470 Reviews Scanned

Rank No. #1
WEN 56455i Super Quiet 4500-Watt RV-Ready Portable Inverter Generator with Fuel Shut-Off and Electric Start Black
  • Extremely quiet 212cc engine produces 4500 surge watts and 3500 rated watts with a half-load runtime of up to 8.5 hours
  • Features both keyless electric start for easy ignitions as well as a recoil pull start as backup
  • Fuel shutoff maximizes the generator’s lifespan by using up the remaining fuel in the carburetor before shutting down
  • Produces clean power to prevent damage to sensitive electronics such as smartphones, tablets and laptops
  • Includes onboard wheels and carrying handle, a 2.2-gallon fuel tank, two three-prong 120V receptacles, one RV-ready AC 120V NEMA TT-30R receptacle, one 12V DC receptacle, two 5V USB ports, a digital load and fuel display, and a two-year limited warranty
SaleRank No. #2
Westinghouse Outdoor Power Equipment 4500 Peak Watt Super Quiet Portable Inverter Generator, Remote Electric Start with Auto Choke, Wheel & Handle Kit, RV Ready, Gas Powered, Parallel Capable
  • 4500 Peak Watts and 3700 Rated Watts at Less Than 3% THD; Telescoping Handle; Gas Powered; Remote Start With Included Key Fob, Electric and Recoil Start
  • Features a 5–20R 120V Duplex Household Outlet, an RV-Ready Tt-30R 30 Amp Outlet and Two USB Outlets – Great Choice for Travel Trailers or Home Use – Strong Enough to Run All Your Essentials
  • Led Data Center: Rotating Digital Display Shows Fuel Level, Power Output, Remaining Run Time, Voltage Output, and Lifetime Hours
  • Extremely Quiet, Extremely Fuel Efficient: as Low as 52 dBA Noise Output and Up to 18 Hour Run Time on a 3. 4 Gallon Gas Tank – Features “Economy Mode” for Maximum Fuel Efficiency
  • All Westinghouse Portable Generators are Functionally Tested in the Factory and May Contain Minimum Residual Oil and/or Fuel Odor; EPA Compliant; Backed By 3-Year Limited Service, Labor, and Parts Coverage and Nationwide Customer Service Network
Rank No. #3
Genkins 4500 Watt Open Frame Inverter Generator 30 Amp Pure Sine Wave
  • 4500 Peak Watt | 4000 Running Watt Powered by Genkins Commercial class 223 cc 4-stroke OHV engine
  • True 30 Amp ready, able to carry most appliance in your RV, boat, & camp
  • Gas Tank: 2.6 Gal | 8 Hours at 50% load or 5 hours at 100% load
  • Open Frame Inverter! Reduce the weight by 25%, cut down noise by 50% and keep your fuel running longer while protecting your sensitive devices
  • 76lbs Net weight with Wheel Kit Sold Separately
Rank No. #4
WEN DF450i Super Quiet 4500-Watt Dual RV-Ready Portable Inverter Generator with Fuel Shut-Off
  • Dual fuel design runs on both gasoline (4500 surge watts, 3500 rated watts) and propane (4500 surge watts, 3150 rated watts)
  • Auto Fuel Selection Technology automatically switches from propane to gasoline for longer run times
  • EPA III and CARB compliant 212cc engine provides extremely quiet operation (58 dBA at quarter load, 22 feet)
  • Produces clean power to prevent damage to sensitive electronics such as smartphones, tablets and laptops
  • Includes fuel shut-off for easier maintenance, onboard wheels and carrying handle, two three-prong 120V receptacles, one RV-ready AC 120V NEMA TT-30R receptacle, one 12V DC receptacle, one 5V USB port, a digital load and fuel display, and a three-year limited warranty
SaleRank No. #5
Champion Power Equipment 200988 4500-Watt Dual Fuel RV Ready Portable Inverter Generator, Electric Start
  • DUAL FUEL: Operate your 4500-watt portable generator right out of the box on either gasoline or propane, plus the unit holds 0.6-quarts of oil (10W-30 oil included) and has a low oil shut-off sensor.Fuel Gauge : No. Voltmeter : No.
  • ELECTRIC START: Battery included, plus Quick Touch Panel allows you to access all your controls in one spot
  • QUIET OPERATION: 61 dBA is perfect for RVs, tailgating, your next project or backup power for your home, featuring 4500 starting watts and 3500 running watts with up to 14 hours run time on gasoline
  • CLEAN POWER: RV Ready with a 120V 30A RV, plus two 120V 20A household outlets with clean electricity (less than 3% THD) and 12V DC outlet with dual USB adapter
  • CHAMPION SUPPORT: Includes 3-year limited warranty with FREE lifetime technical support from dedicated experts
Rank No. #6
WEN 56450i Super Quiet 4500-Watt RV-Ready Portable Inverter Generator with Fuel Shut-Off
  • Generates up to 4500 surge watts and 3500 rated watts
  • EPA III and CARB compliant 212cc engine provides extremely quiet operation (58 dBA at quarter load, 22 feet)
  • Fuel shutoff maximizes the generator’s lifespan by using up the remaining fuel in the carburetor before shutting down
  • Produces clean power to prevent damage to sensitive electronics such as smart phones, tablets and laptops
  • Includes onboard wheels and carrying handle, two three-prong 120V receptacles, one RV-ready AC 120V NEMA TT-30R receptacle, one 12V DC receptacle, one 5V USB port, a digital load and fuel display, and a three-year warranty
Rank No. #7
WEN GN4500 4500-Watt 212cc Transfer Switch and RV-Ready Portable Generator, CARB Compliant, Orange/Black
  • Generate up to 4500 starting watts and 3600 running watts
  • 4-gallon fuel tank provides a half-load runtime of up to 13 hours
  • Digital data meter displays voltage, frequency, session runtime, and total runtime
  • Packed panel includes four standard 120V 20A household duplex outlets (5-20R), one 120V 30A RV outlet (TT-30R), and one 120V three-prong transfer-switch-ready 30A outlet (L5-30R)
  • Features an EPAIII and CARB compliant 212cc 4-stroke engine, an automatic voltage regulator, a spark arrestor, low-oil shutdown, and a two-year warranty
Rank No. #8
Pulsar G450RN, 4500W Super Quiet Portable Inverter Generator with Remote Start & Parallel Capability, RV Ready, CARB Compliant
  • 4, 500 peak watts/ 3, 700 running watts
  • Capable of up to 15 hours of extended operation at half load on 3. 2 gallons of fuel
  • Convenient wireless remote start allows you to operate the unit from up to 80 ft away
  • Quiet operation (63 db) make it possible to have conversation 10 Feet away
  • Compact design with extendable Handle and Never-Flat wheels for easy handling and storage capability
Rank No. #9
GENKINS 4500 Watt Portable Inverter Generator Gas Powered Ultra Quiet RV Ready Camper Friendly…
  • 4500 Peak Watt / 3800 Running Watt Pure Sine Wave Clean Power, Best value on the market $ vs wattage wise guaranteed Powered by GENKINS industrial class 223cc 4-stroke OHV engine
  • 2.64 Gal Gas tank give you 8 hours run time at 50% load
  • Total Portable weight at only 92 lbs, wheel kit & handle are included. no need to buy separate portable kits
  • 56-63 dBA ultra quite operation when it's 15 feet away from your window RVer & Camper Friendly
  • Auto shut down when oil running low/out, no need for manual turn off. 2 Years Limited Warranty
SaleRank No. #10
Pulsar 4500W, Portable Quiet Remote Start & Parallel Capability , CARB Compliant Inverter Backup Generator, PG4500iSR, White, RV ready
  • 4, 500 peak watts/ 3, 700 running watts
  • Capable of up to 15 hours of extended operation at half load on 3. 2 gallons of fuel
  • Convenient wireless remote start allows you to operate the unit from up to 80 ft away
  • Quiet operation (63 db) make it virtually silent from just 10 Feet away
  • Compact design with extendable Handle and Never-Flat wheels for easy handling and storage capability
Rank No. #11
Exhaust Muffler For Champion All Power UST 212CC 196CC 5.5HP 6.5HP 3000W 3250W 3500W 4000W For Predator 3200/4000 3500/4375 Watts For Duromax DuroStar 4400W 4500W Gas Generator
  • High Quality Brand New Generator Muffler
  • For Predator 212CC 6.5HP 3200W 4000W 3500W 4375W Gas Generator
  • For All Power Duromax DuroStar Sigma 3250W 4000W Gas Generator
  • For Harbor Freight Gas Generator 63960 63962 63079 63080 63089
  • Fits Many Brands of 5.5HP 6.5HP 3500W 4000W Gasoline Generator
Rank No. #12
Westinghouse Outdoor Power Equipment 4650 Peak Watt Portable Generator, RV Ready 30A Outlet, Gas Powered, CO Sensor, CARB Compliant, Blue
  • 3600 Running Watts and 4650 Peak Watts; Recoil Start; 4 Gallon Fuel Tank With Fuel Gauge; Up to 14 Hours of Run Time Per Tank
  • Feature Two 5–20R 120V Household Duplex Receptacle, One RV-Ready TT-30R 30 Amp Receptacle, and One L5-30R 30 Amp Receptacle; All Outlets Have Rubber Covers for Added Safety
  • Plug-and-Play: Comes With Oil, an Oil Funnel, a Tool Kit, and a User’s Manual to Get You Started Right Out of the Box (Minimal Assembly Required)
  • Powered by a 212cc Westinghouse 4-Stroke OHV Engine Featuring a Long-Lasting Cast Iron Sleeve With Automatic Low Oil and Carbon Monoxide (CO) Shutdown
  • All Westinghouse Portable Generators are Functionally Tested in the Factory and May Contain Minimum Residual Oil and/or Fuel Odor; EPA and CARB Compliant; Backed by 3-Year Limited Service, Labor, and Parts Coverage with Nationwide Customer Service Network
SaleRank No. #13
Cummins Onan P4500I Portable Inverter Generator, Power Inverter Dual 5V USB Ports for Mobile Charging, Gas Powered for Backup Home Use, RV & Camping - 7.3 HP 224cc OHV 4-Stroke Engine W/Remote Start
  • INNOVATIVE & PORTABLE POWER INVERTER: The Cummins Onan P4500I inverter portable generator is your go-to source of power wherever you need it. Designed compact with RV capabilities, our portable generator is the ideal generator for home use or on-the-go power.
  • HIGH-PERFORMANCE GAS-POWERED GENERATOR: With a robust 7.3 HP 224cc OHV 4-Stroke engine, this heavy-duty generator can run your tools, electronics, and appliances efficiently. Our power generator is a great choice for reliable power at job sites or during emergencies.
  • USER-FRIENDLY RV INVERTER GENERATOR: Easy to start with a push button or pull cord backup, our power inverter generator offers smooth operation. This RV generator has parallel capability with another P4500 for up to 50A - offering you more power when you need it.
  • CONSIDERS ALL NEED: This innovative portable inverter generator features dual 5V USB ports for charging mobile devices and a 30A TT-30R outlet for camper use. An ideal RV generator for camping trips, offering clean, reliable power.
  • DURABLE & POWERFUL 4500 WATT GENERATOR: The P4500I Cummins Onan generator is more than a portable gas generator, it's your power solution. With our reliable and durable inverter/ generator, you can meet your energy needs - whether for outdoor activities or as a home backup.
Rank No. #14
PowerSmart Portable Generator - Gas Inverter Generator 4500 Watt, RV Ready Outdoor Generator, Parallel Capability, Super Quiet Generator for Home Use, Camping
  • Versatile Power Supply: Equipped with 2 AC outlets (120V), 2 USB-A ports (5V), and 1 DC car port (12V), this portable inverter generator is designed to charge a wide range of devices and outdoor electronics. From laptops to mini-coolers and even drones, you'll have the power you need wherever you go.
  • Smart Monitoring: Stay in control with easy monitoring of voltage, frequency, overload indicators, and operating time. The economy mode allows you to monitor power consumption in real time, ensuring you optimize fuel efficiency.
  • Certified and Supported: Rest easy knowing this generator is EPA certified and CARB compliant, meeting stringent emissions standards. Your purchase includes a 3-year limited warranty, FREE lifetime technical support, parts coverage, and 24-hour online service, offering you peace of mind and assistance when you need it.
  • Parallel Ready: You can parallel this inverter generator with another unit to double your output power, giving you the flexibility to handle larger loads and appliances. Its 4-stroke OHV single-cylinder engine and forced air cooling system ensure reliable performance.
  • Quickly Support: Simply click the "sold by Amerisun" button and select "Ask a Question." Alternatively, visit your order page and choose "Get Help" or "Get Product Support." We're here to ensure you have a seamless experience with your Quiet Inverter Generator, so you can focus on your adventures and backup power needs.
SaleRank No. #15
POXURIO 4000 Watt Generator, DK4000iSA Gas Generator, Gasoline Inverter Generator Super Quiet, Eco-Mode/RV Ready/Lightweight/EPA Compliant/Carb for Outdoor Camping, Home, Dining Truck, Travel
  • 【Strong Power】This portable generator has a starting power of 4000W that can your daily needs of various electrical appliances and equipment in camping, outdoor activities, commercial use, or home backup power.
  • 【Low Noise】POXURIO inverter generator adopts advanced sound reduction technology and produces a noise value of only 62 decibels during operation(much lower than other traditional generators), ensuring the comfort of electricity consumption.
  • 【Gas Powered】Our gas powered generator is welcomed by the majority of people. Compared with other fuel types, gasoline is more convenient to store, more affordable, and more convenient to obtain, making it one of the most common fuels in people's daily lives.
  • 【Parallel Operation】This generator outdoor supports parallel operation, and you can achieve power supply of over 4000W by 2 or 3 machines. Also it has excellent current stability that protects electrical equipment from voltage fluctuations.
  • 【Lightweight Design】The generator is made of lightweight materials, weighing only 45 pounds so it is easy to carry and store. You can easily carry and set up this generator to meet the backup power needs for outdoor camping and emergency situations.
Rank No. #16
Carburetor for Ryobi 3600 4500 Watt Inverter Generator 212cc Replace for Carb RY903600
  • Carburetor for Ryobi 3600 4500 Watt Inverter Generator 212cc Replace for Crbutretor RY903600
  • RY903600 Carburetor fit for Ryobi 212cc 3600 watt 4500 watt Inverter generator
  • Replace parts # for Ryobi RY903600, For Homelite 16100-Z300410-0099, DP242852
  • Package including: Carburetor with gasket
Rank No. #17
BILT HARD Generator 5500 Watt, Quiet Inverter Generator Portable with Electric Start, 120V NEMA 5-20R, NEMA TT-30R and 12V DC Output, Outdoor Generators for Home Backup Use and RV Ready
  • Pure Sine Wave Inverter - Less than 2.5% THD. Covered 120V 60HZ AC Max20A duplex receptacle & Max33.3A outlet and 12V Max8.3A DC output (USB adapter included) are protected by circuit breakers.
  • Gas Generator - 224cc 4-stroke air-cooled OHV gasoline engine. 3.17 gal fuel tank allows 12 hours run time @25% load. 3800 rpm max engine speed and 9.1:1 compression ratio.
  • Electric and Recoil Start - 5500 Peak Watts, 4000 Running Watts clean and stable power is ideal for your RV, campsite, pole barn, worksite and home.
  • Quiet and Fuel Efficient - As low as 68 dB with double-insulated acoustic enclosure, asymmetrical cooling fans, automatic RPM control and low tone mufflers to reduce operating noise.
  • Fuel: 87+ octane, stabilizer-treated unleaded gasoline. Engine Oil: SAE 10W-30.
SaleRank No. #18
Pulsar PGD40ISCO Ultra Light Quiet 4000W Portable Gas Inverter Generator
  • 51 lbs [Extreme light weight]
  • 12oz gas tank, 4.5 hrs run time @ half load
  • 3200W Rated / 4000W Peak
  • RV ready, AC ready, Fridge ready
Rank No. #19
WEN DG4500iX 4500-Watt RV and Transfer-Switch-Ready Dual Fuel Open Frame Inverter Generator with Electric Start and CO Watchdog
  • 224cc dual fuel engine produces 4500 surge watts and 3650 rated watts on gasoline or 4500 surge watts and 3285 rated watts on propane
  • Generate clean power to safely operate sensitive electronics such as smartphones, tablets, televisions and computers
  • The WEN Watchdog CO Shutdown Sensor helps protect both you and your family by automatically turning off the generator if dangerous levels of carbon monoxide are detected
  • Extra-large 4-gallon gas tank provides up to 12 hours of half-load run time
  • Includes electric start for easy ignition, a wheel and handle kit, two 120V NEMA 5-20R receptacles, two 5V USB ports, one transfer-switch-ready 120V NEMA L5-30R twist lock receptacle, one RV-ready 120V TT-30R receptacle, and a three-year warranty
Rank No. #20
WEN DF475T Dual Fuel 120V/240V Portable Generator with Electric Start Transfer Switch Ready, 4750-Watt, CARB Compliant
  • Switch between gasoline (4750 surge watts, 3800 running watt) and propane (4350 surge, 3500 running) with the simple turn of the selection dial
  • Voltage easily goes from 120V to 240V, perfect for transfer switches and emergency backup
  • Electric start powers the 224cc 4-stroke OHV engine with the turn of a key
  • 4-gallon tank provides up to 11 hours of half load run time
  • Includes two 120V GFCI outlets (5-20R), a 120V/240V NEMA 30A twist lock (L14-30R), a 12V DC cigarette-lighter-style plug, a bottle of oil, a wheel and handle kit, a 47-inch LPG connection hose, and a 2-year warranty

Last update on 2023-10-17 / Affiliate links / Product Titles, Images, Descriptions from Amazon Product Advertising API

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  1. Brand Value: Every brand of 4500W Generator has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an 4500W Generator?
  3. Specifications: How powerful they are can be measured.
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  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 4500W Generator.
  7. Product Quality: You don’t always get what you pay for with an 4500W Generator, sometimes less, and sometimes more.
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