Power fit
35/35Clears your 3,000W running target.
Predator · Inverter generator · 4550W Open-Frame Inverter 49-State
4550W Open-Frame Inverter 49-State supplies up to 3,650 running watts and 4,550 starting watts with CO SECURE carbon-monoxide shutoff.

Infographic gallery
3,650W rated output
The comparison uses Predator’s published rated and peak, surge, or maximum output figures.
Energy source
Gasoline
Published runtime guidance
See official Harbor Freight runtime guidance
See the official Harbor Freight specification table
Listed weight
See the official Harbor Freight specification table
Dimensions
Charging or integration
Fuel and starting procedures vary by model; follow the official owner manual
Backup transfer
Manual transfer equipment is required for home-panel connection
Noise
See the official Harbor Freight sound-rating specification
Official product gallery
The current official image set for 4550W Open-Frame Inverter 49-State includes product views, connection diagrams, feature explanations, and compatible system configurations where Predator publishes them.












Complete specifications
These pages retain Predator's model-specific output, charging, battery, port, continuity, dimensions, environmental, engine, fuel, app-control, and warranty fields where published.
System capability
PREDATOR 4550W Open-Frame Inverter 49-State
Power delivery
CO SECURE technology automatically shuts the generator down when harmful carbon-monoxide levels are detected.
Charging and fueling
Inverter architecture is designed for stable power and sensitive electronics.
Battery and durability
Gasoline-powered portable operation.
Best-fit uses
Standout features
Use the independent calculator before choosing a battery system or generator.
Starter Fit Score
Excellent fit
For a 3,000W target and a $1,500 budget.
Clears your critical profile limits
Why it scored this way
This personal score is separate from the model’s class score. It measures fit against your priorities and gives neutral partial credit when price or noise data is missing.
Clears your 3,000W running target.
$679.99 is within your budget.
Gasoline works with your flexible fuel preference.
Weight is not published; portability gets a neutral score.
Noise is not published; quietness gets a neutral score.
Home-backup fit rewards adequate output and fuel flexibility.
Find My Generator score
Competitive in its class
Compared with 172 mid output inverter generators in the current catalog.
Running and peak output versus the class
Single-fuel operation
Output or stored energy per listed dollar
Class comparison
A number is more useful with context. Each row shows this model beside its class median and translates the difference into a percentile.
Running output
Higher than 55% of its class
Peak output
Higher than 57% of its class
How the score works: Scores use published specs and are relative to comparable products in this catalog. Missing specs are excluded and remaining weights are normalized. Runtime is the longest manufacturer-published figure and may use a different load or fuel than another model.
Ownership resources
Start with the exact Predator 4550W Open-Frame Inverter 49-State model or item number. Accessory families can look alike while using different connectors, electrical limits, engines, or mounting points.
Compatible accessories
Use a correctly rated cord or professionally selected inlet connection for the intended load.
Model-matched filters, spark plugs, batteries, oil supplies, and service parts support scheduled maintenance.
A fitted storage cover protects a cooled, stored generator. A running shelter must be designed for generator operation.
Manuals & PDFs
Compatibility note: Links lead to manufacturer or official retailer resources. Confirm the full model or item number, connector type, voltage, amperage, and published compatibility list before buying. Installation involving a home panel, inlet, transfer switch, or fuel plumbing should be handled as required by local code.