Portable FIRMAN Power Equipment W03663OF generator on wheels with a yellow and black color scheme, displayed against a white background.
Graphic showing items included with the FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert product: toolkit, wheels, handle, engine oil, oil funnel, parallel cable, remote control, charger cable, and battery, all icons.
Portable FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert generator with a "bonus items" label and an illustration of an l5-30p to tt-30r adapter.
A man uses a table saw powered by a fuel-efficient FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert outdoors, with a barn in the background.
A person in winter clothing operates a yellow and black FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert on wheels in a snowy environment.
A FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert displayed outdoors with its manual, a bottle of oil, wheels, and power cords arranged around it.
Yellow and black FIRMAN Power Equipment Inverter Open Frame Portable Generator W03663OF 4500W Remote Start with CO Alert with labeled dimensions on white background.
Yellow and black FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert, displayed against a grey striped background.
Rear view of a fuel-efficient FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert gas generator showing the engine, wheels, and various operational stickers and labels.
Yellow and black FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert on a white background, showing its engine and wheel.
Front view of a modern, fuel-efficient FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert on wheels with visible engine and controls, predominantly black and gray with orange accents.
Top view of a yellow FIRMAN Power Equipment emergency roadside kit in a compact case, featuring various safety tools and clean power instructions, arranged neatly around a central tire pressure gauge.
A FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert with a yellow and black design, featuring large wheels and a structured metal frame.
Yellow and black FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert on a white background.
A FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert on a white background, featuring multiple outlets and a yellow and black casing.
Yellow and black FIRMAN Power Equipment W03663OF Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert with wheels on a white background.
Portable FIRMAN Power Equipment W03663OF generator on wheels with a yellow and black color scheme, displayed against a white background.
Graphic showing items included with the FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert product: toolkit, wheels, handle, engine oil, oil funnel, parallel cable, remote control, charger cable, and battery, all icons.
Portable FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert generator with a "bonus items" label and an illustration of an l5-30p to tt-30r adapter.
A man uses a table saw powered by a fuel-efficient FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert outdoors, with a barn in the background.
A person in winter clothing operates a yellow and black FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert on wheels in a snowy environment.
A FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert displayed outdoors with its manual, a bottle of oil, wheels, and power cords arranged around it.
Yellow and black FIRMAN Power Equipment Inverter Open Frame Portable Generator W03663OF 4500W Remote Start with CO Alert with labeled dimensions on white background.
Yellow and black FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert, displayed against a grey striped background.
Rear view of a fuel-efficient FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert gas generator showing the engine, wheels, and various operational stickers and labels.
Yellow and black FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert on a white background, showing its engine and wheel.
Front view of a modern, fuel-efficient FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert on wheels with visible engine and controls, predominantly black and gray with orange accents.
Top view of a yellow FIRMAN Power Equipment emergency roadside kit in a compact case, featuring various safety tools and clean power instructions, arranged neatly around a central tire pressure gauge.
A FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert with a yellow and black design, featuring large wheels and a structured metal frame.
Yellow and black FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert on a white background.
A FIRMAN Power Equipment Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert on a white background, featuring multiple outlets and a yellow and black casing.
Yellow and black FIRMAN Power Equipment W03663OF Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert with wheels on a white background.
01/01
Certification: Certification CARB Certification cETL Certification EPA
Model: w03663of

Inverter Open Frame Portable Generator 4500W Remote Start with CO Alert
$1,199.99 USD
Free Shipping on all Generators
SERIES Inverter
TYPE Open Frame Inverter

The FIRMAN W03663OF is a 4500-watt remote start generator that's not just a machine—it's a statement of power for weekend warriors, home project conquerors, and tailgating champions.

Packing a punch with 4500 starting watts and 3650 running watts, this portable dynamo weighs only 116lbs and boasts a 6-gallon tank for up to 23 hours of uninterrupted power at 25% load. Fueled by the Max Pro Series 208cc engine, it runs cool at a quiet 64dBs, providing the energy you need without the unnecessary roar. Eco-conscious with an eco mode button and the ability to parallel with any other FIRMAN inverter, it's a force to be reckoned with.

Safety is paramount, featuring a CO Alert carbon monoxide shutdown, ensuring peace of mind. Whether you're an RV enthusiast, camping pro, tailgating virtuoso, or a DIY guru, the W03663OF is your go-to companion.

Backed by a legendary FIRMAN 3-year warranty, with everything you need right in the box—oil, funnel, 12V battery cable, operator's manual, and spark plug wrench. Unleash the power, conquer the weekend, and make the W03663OF your undisputed choice for ultimate performance.

LEGENDARY FIRMAN ENGINEERING

  • 208cc engine
  • Recoil start
  • Electric start 
  • Remote start
  • Low oil shut off
  • Cast iron sleeve
  • Running watts 3650W 
  • Starting watts 4500W 
  • 120 volts

 

PERFORMANCE IN A LEAGUE OF ITS OWN

  • Up to 22 hours of runtime at 25% load
  • 6-gallon tank
  • Eco mode varies engine speed depending on load for maxim fuel efficiency 
  • Weight: 106 lbs
  • 67dB ¼ load

FEATURES YOU EXPECT FROM FIRMAN

3-year warranty

Multi-featured control panel with covered outlets

  • (1) 5-20R 120V 20A DUPLEX
  • (1) L5-30R 120V 30A TWISTLOCK
  • (1) 14-50R 120V/240V 50A (15.2A/120V/3650W)
  • (1) USB-A (2.1A/5V DC/10W)
  • (1) 12V DC Power Port/Plug (8.3A/12V DC/100W)
ENGINEERED IN THE USA

FIRMAN generators are made to endure every condition from cold winter nights to hot summer days to everything in between.

Industry-Leading Warranty

New FIRMAN generators are backed by a 3-year warranty. Refurbished generators have a limited 90 day warranty

Customer Support

Our skilled technicians located in Peoria, AZ are available 7 days a week to provide the support you need when you need it most. 

3650

Running Watts

4500

Starting Watts

208

FIRMAN Engine

6 Gallon Gas Tank

22 Hrs Run Time

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Manuals

W03663OF QSSG

download

W03663OF Manual French

download

W03663OF Manual English

download

W03663OF Manual Spanish

download

Watch

CO Alert Overview

Watch

W03663OF Overview

Watch

W03663OF Maintenance

Watch

W03663OF Unboxing

@FIRMANpowerequipment
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