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Firman W05583 Gasoline 5500W/6850W Inverter Portable Generator | Remote Start | 120/240V | CO Alert

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SKU: W05583
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Original Price $1,799.00
Current Price $1,599.00

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The Firman W05583 5500W/6850W Inverter Portable Generator Provides Reliable Power Anytime You Need It

When the lights go out, or when your adventures take you off the grid, nothing gives you more confidence than reliable, ready-to-go power. The Firman W05583 Gasoline 5500W/6850W Inverter Portable Generator is built to deliver steady, clean, and long-lasting energy for home backup, RV travel, job sites, and outdoor living. With advanced inverter technology, generous wattage output, and whisper-quiet operation, this generator ensures your most essential appliances and sensitive electronics stay safe and powered, no matter where you are.

Unlike standard generators, the Firman W05583 combines raw strength with refined engineering. It doesn’t just keep your lights on it gives you true peace of mind, whether you’re preparing for emergencies, powering a busy campsite, or keeping your tools running on the job.

Why Choose the Firman W05583

When you invest in the Firman W05583 Gasoline 5500W/6850W Inverter Portable Generator, you’re not just buying a machine you’re securing peace of mind. Its combination of powerful output, fuel efficiency, portability, and quiet operation sets it apart from standard generators. You get the convenience of clean energy you can trust, backed by a brand known for quality and durability.

Life is unpredictable, but your power doesn’t have to be. From emergencies to adventures, from job sites to family gatherings, the Firman W05583 is your partner in keeping life powered, no matter what comes your way.


Firman W05583 Generator Features

Firman W05583 Gasoline with CO alert feature on a gray background

Strong 322cc Engine Built to Last

At the core of the Firman W05583 is a rugged 322cc engine with a cast iron sleeve for superior durability. Designed for demanding conditions, it delivers consistent power output while extending engine life, ensuring long-term reliability for home, RV, and worksite use.

Easy Remote and Electric Start Options

Power up instantly with the convenience of remote start or the simplicity of an electric start. Whether you’re at home or on the road, starting your generator is effortless, delivering reliable performance without struggling with pull cords in tough situations.

Reliable Backup Recoil Start Assurance

Even when the battery runs low, the recoil start gives you a dependable backup option. With this manual system in place, you’re never left powerless, guaranteeing access to energy when you need it most, regardless of operating conditions or emergencies.

Safe Operation with Low Oil Shut Off

Protecting your investment is simple with automatic low oil shut off. This safety feature prevents engine damage by shutting down the unit when oil levels are low, providing peace of mind during long runtime sessions and ensuring worry-free power generation.

Firman W05583 Gasoline on a white background

High Starting Watts for Demanding Loads

With an impressive 6850 starting watts, the Firman W05583 handles energy surges from refrigerators, air conditioners, and power tools. You can confidently start large appliances without fear of overload, making it perfect for both emergency backup and heavy-duty outdoor projects.

Steady Running Power at 5500 Watts

Once running, the generator delivers a reliable 5500 watts of continuous power. This steady output keeps your essential appliances, tools, and electronics operating smoothly, ensuring no interruptions whether you’re camping, working on-site, or keeping your home running during unexpected outages.

Versatile Dual 120/240 AC Voltage Capability

Engineered for versatility, the Firman W05583 supports both 120V and 240V outputs. This makes it ideal for a wide range of uses—from sensitive electronics to heavy-duty appliances—offering flexibility and convenience to power what matters most in any situation.


Firman W05583 Generator Warranty

Firman warrants to the original purchaser that the mechanical and electrical components will be free of defects in material and workmanship for a period of one (1) year (parts and labor) and three (3) years (parts and technical support) from the original date of purchase 90 days [parts and labor] and 180 days [parts] for commercial; industrial use.

If the product is still under warranty and after technical evaluation the product is determined to be defective as a result of manufacturing, not due to misuse or modification of the product, then Firman will replace the product.


What's Included

  • 1 x Firman W05583 Generator
  • 1 x Battery Float
  • 1 x Charger Cable
  • 1 x Tool Kit
  • 1 x Engine Oil
  • 1 x Oil Funnel
  • 1 x Battery

Firman W05583 Generator Specifications

Starting Watts 6850
Running Watts 5500
Rated AC Voltage 120/240V
Rated Frequency 60Hz
Phase Single
Voltage Regulator Digital
Power Factor 1
Total Harmonic Distortion (THD) < 3%
Alternator Type Magneto Inductor
Engine Brand FIRMAN
Engine Type Single Cylinder, 4-Stroke OHV, Air Cooled
Displacement 322 cc
Low Oil Shutdown Yes
Ignition System Breakless Ignition Type, Flywheel Magneto
Starting System Recoil / Electric / Remote
Fuel Type Unleaded Automotive Gasoline
Fuel Tank Capacity 5.3 U.S. Gallons (20L)
Lubricating Oil Capacity 35.5 oz (1.05L)
Carburetor Type Float
Air Cleaner Polyurethane Type
P.T.O. Shaft Rotation Counter Clockwise (Facing P.T.O.)
Oil Type See “Add Engine Oil” Section
AC Grounding System Neutral Bonded to Frame

Firman W05583 Generator Manual

Firman_W05583_Generator_Manual