GENMAX · Inverter generator

GM4300iASD

Name: GENMAX GM4300iASD
Brand: GENMAX

Gasoline + Propane inverter generator with 4,300 peak watts

3,350W running4,300W peak160cc OHVGasoline + Propane

Compare retailer offers Retail pricing varies

Genmax GM4300iASD 4300-Watt Dual Fuel Portable Inverter Generator, Light-Weight With CO Sensor — Official product image: GENMAX

Product decision summary

Researched by Andrew Petla · reviewed under the FMG editorial standard · Sep 15, 2026

Trace the evidence · not a hands-on review

Bottom line

Best for specific needs for rv power & home essentials.

Best for: RV power & Home essentials

Running output

3,350W

Fuel / power

Gasoline + Propane

Weight

Not published

Strongest reasons

3,350 running watts and 4,300 peak watts for rv power and home essentials.
Published sound level is quieter than 67% of its class.
Multiple fuel choices add outage flexibility.

Know before buying

A reliable public price is not currently published. Confirm the delivered total and return terms with the seller.

Scores at a glance

Class score

Starter fit

Best for specific needs among 177 mid output inverter generators.

Strong fit

See score details Personalize in 60 sec

Best current buying route

Check current price

See current offers at GENMAX

The only verified seller destination for this exact model. Confirm current price and stock with the seller. Confirm price, stock, shipping, and the exact model on the seller’s site.

Check price & availability

Affiliate links may earn us a commission at no added cost to you. Disclosure

Never run a fuel-burning generator in a home, garage, shed, or other enclosed or partly enclosed space.

Price intelligence Evidence ledger Accessories & manuals

Key specifications

The numbers that drive the decision.

Published values stay labeled, and every usable metric includes class context. Missing data is shown instead of estimated.

Open complete specifications

Specification	This model	Class median	Context
Running output	3,350WHigher than 34% of its class	3,500W	Higher than 34% of its class
Peak / starting output	4,300WHigher than 43% of its class	4,500W	Higher than 43% of its class
Product weight	Not publishedNo class comparison available	Not enough class data	No class comparison available
Published sound level	59 dBAQuieter than 67% of its class	62 dBA	Quieter than 67% of its class
Fuel / power source	Gasoline + PropaneInverter generator	Not applicable	Inverter generator
Best current price	Check current priceSee current offers at GENMAX	Prices change	See current offers at GENMAX

Class comparisons use 177 mid output inverter generators. Runtime figures can use different loads, fuels, or test conditions; confirm the model manual before planning fuel or battery duration.

Product gallery & complete specifications Official imagery, full spec tables, use cases, and source linksView details

Visual spec gallery

The deciding numbers, made scannable.

Scroll sideways to explore →

01 · Maximum output

4,300W peak

Continuous output3,350W running

Size around running load first, then confirm the peak rating covers the largest startup surge.

02 · Fuel output

Gasoline + Propane

Gasoline

3,350W run · 4,300W peak

Propane

3,000W run · 3,700W peak

Alternative-fuel ratings are shown only when GENMAX publishes a fuel-specific figure.

03 · Portability

See manufacturer page

Unit weight

See manufacturer page

Dimensions

Sound rating

59 dBA

04 · Controls & ownership

Starting

See manufacturer page

CO shutoff

Manufacturer-listed

Parallel

Capable

Warranty

See manufacturer warranty

Official product gallery

Every manufacturer view in one place.

GENMAX imagery can include the enclosure, control panel, outlets, dimensions, feature callouts, and included accessories.

Official GENMAX GM4300iASD product image 1 — Official GENMAX image 1 of 6

Official GENMAX GM4300iASD product image 2 — Official GENMAX image 2 of 6

Official GENMAX GM4300iASD product image 3 — Official GENMAX image 3 of 6

Official GENMAX GM4300iASD product image 4 — Official GENMAX image 4 of 6

Official GENMAX GM4300iASD product image 5 — Official GENMAX image 5 of 6

Official GENMAX GM4300iASD product image 6 — Official GENMAX image 6 of 6

Complete specifications

Manufacturer data, organized for comparison.

Power ratings, features, imagery, manuals, and seller links come from GENMAX’s current U.S. model page. A missing figure is labeled instead of estimated.

Never run a portable generator indoors. Keep it at least 20 feet from occupied buildings with exhaust directed away from doors, windows, and vents. Use a qualified electrician and approved transfer equipment for home connections.

Model overview

3,350 running watts and 4,300 peak watts for rv power and home essentials. Confirm exact configuration and included accessories with the seller before purchase.

Fuel-specific output

Gasoline: 3,350W running / 4,300W peak
Propane: 3,000W running / 3,700W peak

Operation & ownership

Engine: 160cc OHV
Voltage / frequency: 120V / 60 Hz
Runtime: See manufacturer page
Fuel capacity: See manufacturer page
Sound: 59 dBA
Starting methods: See manufacturer page
Unit size / weight: See manufacturer page / See manufacturer page
Warranty: See manufacturer warranty

Connections

Have reliable power outdoors with this Genmax 4,300-Watt light-weight dual fuel inverter generator. Perfect for camping or tailgating, it features a powerful 145cc OHV engine and offers a 4,300 starting watts with 3,350 running watts on gasoline and 3,700 starting watts with 3,000 running watts on propane. Clean inverter technology lets you safely use laptops, smart phones, speakers and TVs. The control panel consists of CO sensor indicator light, parallel connectors, 1x Duplex 5-20R 20A 120V, 1x TT-30R 30A 120V

Manufacturer feature details

Features a 145cc OHV fuel-efficient and powerful engine

Dual Fuel For Fuel Flexibility and Choice

Compact Light-Weight Design Weighs Less Than 50 lbs!

Parallel Capable For Double The Power

Current seller links

Compare offers from GENMAX-listed retailers.

These destinations are supplied on the official model page. Prices and availability can change.

Buy on Samsclub

Best-fit uses

RV power
Home essentials
Tailgating
Jobsite tools

Standout features

3,350 running / 4,300 peak watts
Gasoline + Propane
Manual start
CO shutdown system

Compare it with your actual load.

Run your essentials through the calculator before choosing a generator.

Check my power plan

Official sources:Model page All GENMAX generatorsVerified September 15, 2026

Price & Availability

Compare the whole buying route.

The lowest sticker price is not always the best offer. We rank exact-model seller pages using price, stock, shipping, freshness, returns, and warranty details—then show what is still unknown.

Price and delivered cost

Shipping is included only when the seller publishes a usable amount.

Stock and freshness

Current, low-stock, preorder, and stale records are scored differently.

Purchase protections

Published return and warranty terms improve evidence confidence.

Affiliate-neutral ranking

Commission status is recorded but never adds ranking points.

Watch this model

Save it to your shortlist to retain the current price snapshot and turn price and safety watches on or off.

Best current buying route

GENMAX GM4300iASD

Review soon

See current offers

Check current price

at GENMAX · Verify stock

Verify offer

Seller options

0 with price

Offer rank

22/100

Relative to listed sellers

Data confidence

30%

5 open fields

Delivered totals

0/1

Shipping included

The only verified seller destination for this exact model. Confirm current price and stock with the seller.

Seller data checked Sep 15, 2026.

Shipping not yet verified.

Open fields: current price, confirmed stock, delivered cost, return window, warranty term.

Prices, local stock, shipping, taxes, installation, and seller terms can change. Confirm the exact model and final checkout total before buying. Affiliate disclosure.

Seller comparison

Every verified exact-model destination.

Browse all priced models

One exact-model seller destination is currently verified. We show the unknown fields so a single listing is never presented as a broad market comparison.

Seller

Price

Stock & shipping

Buyer protection

Confidence

Action

GENMAX

Best overall

Check current price

Total not available

Verify stock

Shipping not yet verified

Returns not verified

Warranty not verified

30% complete

Checked Sep 15, 2026

Verify seller

GENMAX

Best overall

Review soon

Check current price

Total not available

Availability: Verify stock
Shipping: Shipping not yet verified
Returns: Not verified
Warranty: Not verified

Verify seller

30% data confidence · checked Sep 15, 2026

Price history

A durable record, starting with verified snapshots.

We preserve each dated seller observation instead of replacing the old number. Trends use the lowest verified listed price on each observation date—not an estimated market price.

GENMAX

Check current price · Verify stock

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Ownership

What living with it looks like.

Ownership requires a safe fuel plan, hour-based engine service, correct storage, and confidence that parts and support are accessible.

Ownership rule

Use the exact GENMAX GM4300iASD manual for maintenance intervals, fluids, storage limits, and warranty requirements. Similar models are not interchangeable.

Open owner’s manual Manufacturer support

Published warranty

See manufacturer warranty

Coverage can vary by use, seller, and region. Confirm eligibility and exclusions before purchase.

Service information

1 official resource

An owner or operator manual is linked below for exact service intervals.

Routine upkeep

Engine service required

Oil, filters, spark plug, fuel system, and starting battery needs vary by model and hours used.

Handling & storage

0 lb · Gasoline + Propane

Store dry, fully cooled, and away from ignition sources; follow the manual’s fuel-storage procedure.

Practical care plan

From delivery to long-term readiness

1
Day one
Register and record the exact unit
Save the receipt, serial number, seller, warranty terms, and model-specific manual before packaging is discarded.
2
Before first load
Complete setup and break-in correctly
Add the specified oil, inspect the fuel system, position the generator outdoors, and follow the exact break-in and first-service instructions in the manual.
3
Before every use
Check the safety-critical basics
Check oil level, leaks, cords, outlets, grounding instructions, CO-safe placement, and the transfer equipment needed for any building connection.
4
By hours and season
Log service and keep it outage-ready
Track running hours and perform oil, filter, spark-plug, fuel-system, and starting-battery service at the intervals published for this exact model.

Before you buy

Five ownership questions to settle first

Confirm that See manufacturer warranty applies to your seller, region, and intended use.
Open the official manual for GM4300iASD and review setup, service intervals, warnings, and storage requirements.
Verify access to GENMAX parts, authorized service, and a practical return path in your area.
Plan approved fuel storage, outdoor operating clearance, weather protection, and safe refueling.
Confirm the unit, fuel or charging gear, and essential cords fit the intended storage and transport space.

Manuals and compatible accessories Compare seller protections

Evidence

See the proof behind the conclusion.

We separate sourced facts, reproducible calculations, editorial judgments, and missing evidence. That makes every important claim easier to inspect—and harder to overstate.

Published-data coverage

75%documented

6 of 8 relevant evidence fields are documented for this model.

Source-backed editorial analysis—not a hands-on or laboratory test.

Read our evidence standard Explore original market research

Source record

2 traceable sources

Last reviewed Sep 15, 2026

Hands-on testing

Checking ledger…

No manufacturer data is presented as an independent test

Verified owners

Checking reports…

Percentages stay hidden until the sample qualifies

CPSC screening

No model-text match

39 generator recall records screened

75%

Documented fields

Traceable sources

Reproducible calculations

Open evidence gaps

Original calculation

Published surge reserve

950W

4,300W peak − 3,350W running

28.36% above rated running output. This is arithmetic headroom, not a promise that every motor load will start.

Original calculation

Strongest class-relative spec

67th percentile

Published sound level: 59 dBA ranked within 177 mid output inverter generators

Quieter than 67% of its class

Claim-by-claim evidence ledger

Evidence type	Claim	Basis	Trace
Published factSource-backed	3,350W running and 4,300W peak output are recorded for this model.	Model-specific output fields in the catalog.	Official model source
Published factSource-backed	Gasoline + Propane power is recorded; product weight is not published in the current record.	Published configuration and dimensional data.	Official model source
Original calculationReproducible	Published surge reserve: 950W.	4,300W peak − 3,350W running	Calculation standard
Original calculationReproducible	Strongest class-relative spec: 67th percentile.	Published sound level: 59 dBA ranked within 177 mid output inverter generators	Calculation standard
Editorial judgmentEditorial	Best for specific needs for rv power & home essentials.	Class score 53/100, declared best use, comparative specifications, and explicit buying cautions.	Inspect the score
Editorial judgmentEditorial	A reliable public price is not currently published. Confirm the delivered total and return terms with the seller.	Editorial risk check based on product category, weight, output, price availability, and missing fields.	Judgment standard
Open evidence gapCaution	Product weight is not sufficiently documented in the current record.	The field remains unknown rather than being inferred from a related model or marketing language.	Not available
Open evidence gapCaution	Published price is not sufficiently documented in the current record.	The field remains unknown rather than being inferred from a related model or marketing language.	Not available

Source ledger

Official model source Primary specifications, product identity, and published configuration.CPSC recall search Model-text screening against 39 generator recall records; checked 2026-09-16T02:08:27.514Z.

What this evidence cannot prove

No Find My Generator hands-on test, instrumented load test, teardown, or long-term ownership trial is claimed for this page.
Manufacturer specifications may use different fuels, loads, test distances, temperatures, or operating modes. Cross-brand comparisons inherit those differences.
A reliable public price was not available, so price-efficiency analysis is excluded.
Product weight is missing and receives no invented or estimated value.
Published price is missing and receives no invented or estimated value.

Deeper analysis

Open the details you need

The key decision is above. These supporting scorecards, owner signals, and evidence notes stay out of the way until you want to inspect them.

Fit and score detailsSee the class benchmarks and personalize the fit score for your needs.

Find My Generator score

53/ 100

Best for specific needs

Compared with 177 mid output inverter generators in the current catalog.

Power39

Running and peak output versus the class

Quietness67

Lower published dBA scores higher

Fuel flexibility90

Multiple fuel choices

Class comparison

See what each spec really means.

A number is more useful with context. Each row shows this model beside its class median and translates the difference into a percentile.

SpecificationThis modelClass medianClass standing

Running output

Higher than 34% of its class

This model · 3,350W

Median · 3,500W

Higher than 34% of its class

Peak output

Higher than 43% of its class

This model · 4,300W

Median · 4,500W

Higher than 43% of its class

Published sound level

Quieter than 67% of its class

This model · 59 dBA

Median · 62 dBA

Quieter than 67% 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.

Size a generator for your own appliances

Starter Fit Score

87/ 100

Strong fit

For a 3,000W target and a $1,500 budget.

Clears your critical profile limits

Why it scored this way

A score you can inspect and change.

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.

Power fit

35/35

Clears your 3,000W running target.

Budget fit

11/20

Price is not published; confirm the current offer.

Fuel fit

15/15

Gasoline + Propane works with your flexible fuel preference.

Portability

5.5/10

Weight is not published; portability gets a neutral score.

Noise fit

10/10

59 dBA against your medium quietness priority.

Use-case fit

10/10

Home-backup fit rewards adequate output and fuel flexibility.

Tune my profile

Testing, reviews and evidenceCheck hands-on testing status, owner reliability signals, sources, and data confidence.

Checking the hands-on test ledger…

Testing protocol

The methods behind every result.

This category-specific protocol defines the questions, equipment, conditions, outputs, and safety gates required for this exact model. Published specifications stay visibly separate from hands-on measurements.

Open the hands-on test ledger Read the full test protocol Download measurement worksheet

Manufacturer-published baselines

Rated running output

3,350W

Published

Peak / starting output

4,300W

Published

Product weight

Not published

Published sound level

59 dBA

Pending

How consistently does the unit start under documented conditions?

Follow the manual exactly and record three ambient-temperature starts plus three heat-soaked restarts. Report attempts, elapsed time, start method, battery state, and any intervention.

Attempts per startStart timeAmbient temperatureStart method

Controlled conditions

Record the exact model, serial number, firmware, sample source, and test date before any measurement.
Log ambient temperature, humidity, elevation, wind, surface, and background sound for every test block.
Record instrument model, range, accuracy, and most recent calibration or verification date.
Repeat timing, starting, and sound measurements three times when conditions allow; publish every valid run.
Keep original notes, load logs, meter exports, photos, and any excluded-run explanation with the result.

Required equipment class

Rated resistive or programmable load bank
True-RMS power, voltage, and frequency logger
Calibrated Class 1 or Class 2 sound-level meter
Approved fuel-measurement equipment and fire protection
Weather meter, timer, tachometer, and non-contact thermometer

Safety gate

Operate fuel-burning equipment outdoors only, far from occupied structures, openings, and ignition hazards, with working carbon-monoxide monitoring for personnel.

Testing is for qualified personnel using correctly rated load equipment and the manufacturer’s required grounding, bonding, clearance, and protective-device instructions.

Never connect a generator directly to building wiring or bypass overload, temperature, battery, GFCI, or carbon-monoxide shutdown protection.

Stop a run for unstable voltage or frequency, overheating, fuel or electrolyte leakage, abnormal sound, damaged wiring, or any manufacturer fault indication.

Badge rule: this product receives no “FMG Tested” label or score benefit until a real unit, instruments, conditions, valid runs, raw records, and limitations are documented under the public protocol.

Verified owner reliability

What happens after the honeymoon period?

Long-term reports from confirmed owners show starting, maintenance, failure, support, and recommendation outcomes for the GENMAX GM4300iASD.

See how ownership is verified

Verified owners only

Be the first confirmed owner to report back.

Checking reports…

Reliability percentages stay hidden until at least 5 ownership-verified reports are published for this exact model — 5 more needed.

Ownership checked

Purchase or registration evidence is reviewed privately.

Time in service

Reports separate new ownership from 12+ month experience.

Failures documented

Repairs and maintenance are captured, not buried in a star.

Reports stay private while ownership and model details are checked. Contact information is never shown publicly.

Data trust & safety

Fresh specifications. Visible recall checks.

We show when this record was verified, where its specifications came from, and whether its model number appears in the official CPSC generator-recall dataset.

Review soon

Specification freshness

Last verified: Sep 15, 2026
Review target: Oct 15, 2026
Primary source: Manufacturer / official listing

Prices can change faster than technical specifications. Always confirm the current price, exact model number, and manual before purchase.

CPSC model screening

No model-number match found

39 records checked

The GENMAX GM4300iASD model text did not match the generator recall records in our current CPSC snapshot. This is a screening result, not a guarantee or safety certification. Recalls can be serial-number specific, newly published, or use a different product description.

Search CPSC directly Dataset checked Sep 16, 2026

Research owner

Andrew Petla

Founder & lead researcher

Editorial sign-off

Find My Generator Editorial Review

Accountable editor: Andrew Petla

Review scope: exact model identity, published specifications, calculation inputs, source quality, safety language, and affiliate independence. This is an internal editorial review, not third-party engineering, electrical, or safety certification. Hands-on testing is claimed only when a complete test record is published.Request a correction.

Read the full data methodology

GM4300iASD

Best for specific needs for rv power & home essentials.

The numbers that drive the decision.

The deciding numbers, made scannable.

Every manufacturer view in one place.

Manufacturer data, organized for comparison.

Fuel-specific output

Operation & ownership

Connections

Manufacturer feature details

Compare offers from GENMAX-listed retailers.

Compare it with your actual load.

Compare the whole buying route.

GENMAX GM4300iASD

Every verified exact-model destination.

A durable record, starting with verified snapshots.

What living with it looks like.

From delivery to long-term readiness

Register and record the exact unit

Complete setup and break-in correctly

Check the safety-critical basics

Log service and keep it outage-ready

Five ownership questions to settle first

See the proof behind the conclusion.

Accessories, manuals, and documents.

Match by model and connection.

Generator power cord or inlet connection

Parallel kit

Maintenance kit and service parts

Storage cover or approved running shelter

Official product materials.

Open the details you need

See what each spec really means.

A score you can inspect and change.

Power fit

Budget fit

Fuel fit

Portability

Noise fit

Use-case fit

The methods behind every result.

Questions the measurements must answer.

Continuous output & regulation

Starting-load response

Fuel use & runtime

Sound profile

Cold & hot starting

What happens after the honeymoon period?

Be the first confirmed owner to report back.

Ownership checked

Time in service

Failures documented

Fresh specifications. Visible recall checks.

Specification freshness

No model-number match found

Keep the decision moving.

Compare side by side

Save and watch

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