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Generac GP3300i Inverter Generator

Generac GP3300i Inverter Generator

4.2· 471 ratings

Best price now

$749.00at Nishna Valley CycleObserved at 11:43 AM

Compared across 6 stores. Prices are checked against each store and labelled with when.

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Our take on the Generac GP3300i Inverter Generator

The Generac GP3300i is a portable inverter generator rated at 2500 running watts and 3300 peak watts, aimed at camping, tailgating and backup power for sensitive electronics. It uses PowerRush technology for extra motor-starting surge, True Power for clean output, and COsense to shut the unit down when carbon monoxide builds up. It weighs 59.5 lbs, runs about 4.5 hours at half load on a 1.06-gallon tank, and has a recoil start. The best new price is $749.00 at Nishna Valley Cycle as of November 5, 2026, with 7 stores listing it new.

Best forCampers and tailgaters who need quiet, clean powerHomeowners running a fridge, router and lights during outagesCharging phones and laptops via USBBuyers who want CO shutdown safety on a budget
Pros
  • COsense shuts the engine off when carbon monoxide rises
  • True Power output is clean enough for laptops and TVs
  • PowerRush gives over 50% more starting capacity for motors
  • Economy mode cuts engine speed to save fuel and noise
  • Compact 59.5 lb body with built-in handle
  • Parallel-ready for a second unit, up to 3000W class
Cons
  • Recoil start only, no electric push-button start
  • 4.5-hour runtime at half load is short for overnight backup
  • 1.06-gallon tank means frequent refueling
  • Parallel kit sold separately
  • No published decibel figure to compare against rivals

Generac GP3300i Inverter Generator prices at every store

  • Nishna Valley CycleNew

    In stock

    $749.00Free shippingObserved at 11:43 AM
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  • Home DepotNew

    In stock

    $849.00Free shippingObserved at 11:43 AM
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  • WalmartNew

    In stockSold by GENERAC POWER SYSTEMS

    $849.00Observed at 11:43 AM
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  • Outbound PowerNew

    In stock

    $898.95Free shippingObserved at 11:43 AM
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  • AmazonNew

    Availability unknown

    As an Amazon Associate, Deal.ai earns from qualifying purchases.

    $849.00Free shippingObserved at 11:43 AM
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  • Fleet FarmNew

    Availability unknown

    $899.99Free shippingObserved at 11:43 AM
    Visit store

Also available at

  • WalmartCheck price at Walmart
  • eBayCheck price at eBay
  • Coburn Supply CompanyCheck price at Coburn Supply Company
  • Do it BestCheck price at Do it Best
  • Blain's Farm & FleetCheck price at Blain's Farm & Fleet
  • Global IndustrialCheck price at Global Industrial
  • NFMCheck price at NFM
  • Ohio Power ToolCheck price at Ohio Power Tool
  • SearsCheck price at Sears

Generac GP3300i Inverter Generator price history

Lowest price we've seen: $749.00 on Nov 5 at Nishna Valley Cycle. Tracked across 13 stores since Nov 5.

What reviewers say

  • 4.2 / 5471 ratings

Rated 4.2 out of 5 from 471 ratings, the GP3300i is generally liked for its clean power, quiet inverter operation and CO safety shutoff. Owners most often flag the recoil start and the short runtime between fill-ups.

What people mention
  • NoisePraisedOwners say it runs quietly, especially with economy mode engaged.
  • Power qualityPraisedReviewers report stable output that runs laptops and TVs without issues.
  • CO safetyPraisedThe COsense auto-shutoff is called out as a reassuring feature.
  • StartingCriticisedSome owners find the recoil pull-start takes effort, especially cold.
  • RuntimeCriticisedThe 4.5-hour half-load runtime and small tank draw complaints on longer trips.

From Nishna Valley Cycle

  • PowerRush™ Advanced Technology delivers over 50% more starting capacity
  • Quiet Inverter Power reduces sound emissions and provides optimal performance
  • True Power™ Technology provides clean, stable power ideal for sensitive electronics, tools and appliances
  • Compact, lightweight design with built-in handle for easy carrying
  • PowerDial™ combines Choke, Run and Off into one simple dial
  • Economy Mode adjusts engine speed to save fuel and reduce sound emissions

About the Generac GP3300i Inverter Generator

GENERAC GP SERIES 3300I PORTABLE GENERATOR

The GP3300i inverter featuring advanced PowerRush™ technology delivers over 50 percent more starting capacity so you can do more with less.*

PowerRush™ Advanced Technology delivers over 50% more starting capacity allowing you to do more with less*.

Quiet Inverter Power reduces sound emissions and provides optimal performance.

True Power™ Technology provides clean, stable power ideal for sensitive electronics, tools and appliances.

Easy to Carry compact & lightweight design with built-in handle makes transportation easy.

PowerDial™ Choke, Run, Off: three operation settings integrated into one simple-to-use dial.

Economy Mode automatically adjusts engine speed to save fuel and reduce sound emissions.

USB Ports to charge mobile devices including smart phones and tablets.

Parallel-Ready Capability Allows for connection of two inverter generators for twice the power (3000W and above). (Parallel kit sold separately.)

Generator Status Lights visual alerts when unit is low on oil, overloaded or ready to use.

Disclaimer *Increases electrical current upon demand; above rated output when starting electric motors.

Specifications

CO Sensor
Yes
Low Oil Shutdown
Yes
Overload Protection
Yes
Automatic Shut Off
Yes (COsense® Technology)
Fuel Type
Gasoline
Fuel Capacity
1.06 gal
Fuel Gauge
Yes

Questions and answers

Is the GP3300i enough to run a refrigerator?
Yes for most fridges. Its 3300 peak watts and PowerRush surge handle the compressor start, and 2500 running watts cover the fridge plus a few small loads.
Can I run it inside a garage?
No. Generators must run outdoors, away from windows and doors. COsense shuts the unit down if carbon monoxide builds up, but it is a backup safety net, not a license to run indoors.
Does it have electric start?
No. The GP3300i is recoil start only, with a PowerDial that combines choke, run and off.
How loud is it?
Generac markets it as quiet inverter power and economy mode lowers engine speed, but no decibel rating is published for this model.
Can I connect two units together?
Yes. It is parallel-ready for a second inverter generator, but the parallel kit is sold separately.
When is it cheapest?
The best new price on record is $749.00 at Nishna Valley Cycle as of November 5, 2026. Compare that against the other 7 stores before buying.
Where is the Generac GP3300i Inverter Generator cheapest?
At Nishna Valley Cycle, for $749.00, as of our latest check.
What do buyers say about the Generac GP3300i Inverter Generator?
Rated 4.2 out of 5 from 471 ratings.
Where can I buy the Generac GP3300i Inverter Generator?
14 stores we checked sell it, including Home Depot, Walmart, Outbound Power, Fleet Farm, Amazon.

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Buying guides that pick the Generac GP3300i Inverter Generator

  • Best inverter generators with electric start under $900

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Continuous Output
2500 W
Power Output
3300 W
Runtime
4.5 hours (at 50% load)
Voltage
120V
Peak Output
3300 W
Starting Method
Recoil
Load Capacity
Over 50 percent more starting capacity
Efficiency
Automatically adjusts engine speeds to save fuel
Frequency
60 Hz
Protection
Protection against hazardous carbon monoxide, Automatic voltage regulation (AVR)
Weight
59.5 lbs
Depth
22.3 in
Height
18.4 in
Width
13.4 in
Connectivity Ports
USB, 30A twistlock outlet
Number Of Outlets
4
Receptacle Type
L5-30R, 5-20R