Firman P03503 Gasoline 4450W Portable Generator | Recoil Start 120V Wi | Outbound Power
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Firman P03503 Gasoline 4450W Portable Generator | Recoil Start 120V With CO Alert


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SKU: P03503
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Firman P03503 Gasoline 4450W Generator Overview

The Firman P03503 Gasoline 4450W Portable Generator is the perfect power solution for your home, office, or outdoor adventures. With 4450 starting watts and 3550 running watts, it can power a wide range of appliances and devices, including lights, refrigerators, fans, and tools.

The generator features a 5-gallon gas tank that provides up to 14 hours of run time at 50% load. It also has a built-in CO detector to protect you from carbon monoxide poisoning.

Other features include a recoil start, a fuel gauge, and a 120V/20A outlet. The generator is also EPA and CARB compliant.

So whether you're tailgating at the big game, camping in the great outdoors, or working on a home improvement project, the Firman P03503 Gasoline Generator has you covered.


Firman P03503 Gasoline 4450W Generator Features

The Firman P03503 Gasoline 4450W Generator is a powerful and versatile portable generator that can be used for a variety of applications, such as camping, tailgating, and construction.

Here are some additional features of the Firman P03503.

4450 Starting Watts and 3550 Running Watts

This means that the generator can produce enough power to start a large appliance, such as a refrigerator or air conditioner, and then run it at a lower wattage.

5-Gallon Fuel Tank

This provides up to 14 hours of run time at 50% load, which is enough time to power your appliances and tools for an entire day.

Recoil Start

This is a simple and reliable way to start the generator. Just pull the recoil starter cord and the generator will start up.

Fuel Gauge

This shows you how much fuel is left in the tank, so you know when it's time to refuel.

CO Alert

This will sound an alarm if the generator produces too much carbon monoxide, which can be dangerous.

Low Oil Shutoff

This will automatically shut off the generator if the oil level gets too low, which can prevent damage to the engine.

Power Stream Alternator

This alternator produces more power than a standard alternator, so you can run more appliances and tools at the same time.

1 x L5-30R 120V 30A Twist-Lock Outlet

This outlet is used for larger appliances, such as air conditioners and RVs.>

Wheels and Handle For Easy Transportation

These make it easy to transport the generator to and from your campsite, jobsite, or wherever you need it.


What's In The Box

  • 1 x Firman P03503 Gasoline 4450W Portable Generator
  • 1 x Cover
  • 1 x Engine Oil Bottle
  • 1 x Oil Funnel
  • 1 x Spark Plug Wrench
  • 2 x Double-Ended Wrenches (10mm x 12mm)


Firman 3-Year 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.


Firman P03503 Gasoline 4450W Generator Specifications

Output Specifications

Running Watts 3550
Starting Watts 4450
AC Voltage 120
Frequency (Hertz) 60
Decibels 67dB 1/2 load
Run Time 14hrs
THD @ Full Load 25%



CARB Certified Yes
EPA Certified Yes
cETL Certified Yes
NOM Certified No
UL Certified No


Control Panel

Recoil Start Yes
5-20R 120V 20A DUPLEX 1
L5-30R 120V 30A TWISTLOCK 1
TT-30R 120V 30A RV 1


Generator Specifications

Low Oil Shutoff Yes
Power Stream Alternator Yes
Cast Iron Sleeve Yes
UPC 840876135037
Unit Dimensions 24.8 x 21.7 x 21.7"
Unit Weight 108 lbs.
Carton Carton Dimensions 27.2 x 18.1 x 19.9"
Carton Weight 117 lbs.


Fuel System Specifications

Fuel Type Gas
Tank Size 5 Gallon


Wheel Kit

Wheels 8.0" -black -plastic-flat free
Handle Single folding with grip



Customer Reviews

Based on 2 reviews
Ed T.
Amszing prices, Amazing customer service.

Great Companu to do business with! The courier lost my generator in shipment and the folks at Outbound stepped up when they didn't have to and completely handled it for me. In this day and age you don't find many companies that care about the customer after they have been paid. OUTBOUND POWER IS THE EXCEPTION! A÷÷. The generator was just as promised and works GREAT!

Thank you so much for your kind review, and we were happy to be of service. Most importantly, we're happy to learn the generator has met your expectations. Thank you for your business!

Wanakee M.B.

It is a wonderful unit. I am still receiving help to set it up! I was advised to purchase this particular one. The people at Outbound are helpful!

Thank you so much for your kind review! It's a thrill to know the generator is working out well for you. We appreciate your business!