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FLASH SHIP: ORDERS DISPATCH NEXT DAY • 3-DAY TRANSIT WITH FREE LIFTGATE FREIGHT
HEAVY-DUTY JOB & EMERGENCY POWER ✓ In Stock • Ships Tomorrow

GENMAX GM9000iED 9000-Watt Dual-Fuel Inverter Generator with CO Detect

Clean sine wave power for whole homes, critical circuits, and jobsite tools.
★★★★★
5.0 (4 verified contractor reviews)
$1,599.00 $1,849.00 SAVE $250.00 (14% OFF)
Next-Day Dispatch: Ships tomorrow morning from Dallas, TX warehouse.
Delivery in 3 Working Days: Direct freight carrier transit to your door.
Free Hydraulic Liftgate: Lowered to driveway / curbside at no charge ($250 value).
FUEL SOURCE Gasoline Selected
3-Yr Warranty
30-Day Returns
Free Liftgate
Starting Power
9,000 W
Surge power for A/C & heavy tools
Running Power
7,200 W
Continuous full-load output
Engine Displacement
458 – 500 cc
Commercial 4-stroke OHV engine
Fuel Flexibility
Dual / Tri Fuel
Gasoline, Propane & Natural Gas
READY WHEN DISASTER STRIKES

The grid goes dark.
Your operation doesn’t.

From whole-home air conditioning and sump pumps to demanding jobsite power tools, Groundmark commercial generators deliver stable, uninterrupted power. Heavy-gauge steel frames, push-button electric start, and high-efficiency alternators.

⚡ Whole-Home 50A Interlock Capable
🛡️ Commercial Heavy Steel Roll Cage
🚚 Free Curbside Liftgate Delivery
GENMAX GM9000iED 9000-Watt Dual-Fuel Inverter Generator with CO Detect
01 / FLEXIBILITY

Your power. Your choice of fuel.

Run effortlessly on gasoline or liquid propane. Freedom to switch fuels when local gas stations lose power or lines stretch around the block.

02 / PROTECTION

Pure sine wave inverter alternator.

Low distortion (<3% THD) safe for laptops, sensitive electronics, variable speed compressors, and whole-house smart appliances.

03 / RELIABILITY

Rapid electric start with remote fob.

Push-button start and wireless remote key fob plus recoil pull backup ensure instant cold-weather starting during severe storms.

COMMERCIAL ENGINEERING BENCHMARKS

Built for heavy duty.
Down to the specs.

Review the factory engineering specifications, testing certifications, and material tolerances. Groundmark commercial equipment is designed for reliable contractor service.

Request Detailed Manufacturer Specification Sheet →
Model Designation GENMAX GM9000iED
Peak Surge Watts 9,000W Gas / 8,550W Propane
Running Continuous Watts 7,200W Gas / 6,840W Propane
Engine Displacement 4-Stroke Commercial OHV Engine with Low-Oil Alert
Starting System Electric Push-Button + Wireless Remote Key Fob + Recoil Backup
Voltage & Frequency 120V / 240V AC @ 60Hz Single Phase
High-Amp Outlets 1x 120/240V 50A (NEMA 14-50R), 1x 120/240V 30A (L14-30R), 2x 120V 20A GFCI Duplex, 1x 12V DC
Runtime @ 50% Load Up to 10.5 Hours (Gasoline) / 8.5 Hours (20 lb Propane)
Sound Level Enclosed Sound Attenuated Casing (Whisper-Quiet Operation)
Safety & Emissions CO Alert Automatic Carbon Monoxide Sensor (EPA & CARB 50-State Legal)
Commercial Warranty 3-Year Commercial Factory Warranty with Dallas Depot Support
COMPLETE CRATE PACKAGE

The essentials,
already in the box.

Everything required to deploy, assemble, and operate your commercial equipment arrives securely packaged on a heavy wooden freight skid.

Customer Reviews

Real feedback and field reports from verified GENMAX GM9000iED 9000-Watt Dual-Fuel Inverter Generator with CO Detect owners.

100% Verified Buyer Reviews
5.0
★★★★★
Based on 4 verified contractor reviews
100% of owners recommend this unit
5★
100% (4)
4★
0% (0)
3★
0% (0)
2★
0% (0)
1★
0% (0)

Customer Photos from Real Jobsite Deployments (4)

Simply amazing! Power to spare and totally reliable
Raphael M.
Simply amazing! Power to spare and totally reliable
Clean power kept all sensitive electronics safe
Ethan K.
Clean power kept all sensitive electronics safe
Propane operation is clean and effortless
Michael B.
Propane operation is clean and effortless
Awesome customer service and rapid liftgate freight
Christopher P.
Awesome customer service and rapid liftgate freight
RM
Raphael M.
Verified Buyer • Houston, TX
July 4, 2026
★★★★★

Simply amazing! Power to spare and totally reliable

Purchased this unit after extensive research. Powered my entire house for 42 continuous hours during hurricane blackouts. Central AC, deep freezer, and lights never flickered. Best investment.
Review photo from Raphael M.
Photo
Verified Purchase • GENMAX GM9000iED
EK
Ethan K.
Verified Buyer • Tampa, FL
July 12, 2026
★★★★★

Clean power kept all sensitive electronics safe

Pure sine wave inverter alternator was the main reason I chose this model. Ran home office servers, gaming PCs, and high-end refrigerator with zero harmonic hum. Very quiet.
Review photo from Ethan K.
Photo
Verified Purchase • GENMAX GM9000iED
MB
Michael B.
Verified Buyer • Charlotte, NC
July 18, 2026
★★★★★

Propane operation is clean and effortless

Connected to our 250-gallon residential propane tank. Remote start key fob worked from inside the kitchen. Started immediately on the first click.
Review photo from Michael B.
Photo
Verified Purchase • GENMAX GM9000iED
CP
Christopher P.
Verified Buyer • Dallas, TX
July 22, 2026
★★★★★

Awesome customer service and rapid liftgate freight

Freight carrier delivered with a liftgate truck right to my driveway. The unit was unboxed and running in under 20 minutes. Solid steel construction.
Review photo from Christopher P.
Photo
Verified Purchase • GENMAX GM9000iED
COMMERCIAL LOGISTICS & SUPPORT

Good questions.
Clear answers.

Need extra guidance before ordering? Our factory-trained technical support team in Dallas, TX is standing by to assist you.

Talk to our depot support team →
How does freight shipping and liftgate delivery work?

Dispatched directly from our Dallas, TX warehouse within 24 hours on a dedicated wooden freight skid. Free hydraulic liftgate delivery ($250 value) lowers the crate right to your driveway or curb.

Can this generator run central air conditioning and home appliances?

Yes. With its heavy-duty NEMA 14-50R 50-Amp outlet, it is engineered to connect to your home transfer switch or interlock kit, starting 4-5 Ton central AC systems, well pumps, and refrigerators simultaneously.

Can I switch between gasoline and propane while operating?

Yes, the intuitive front dial allows switching fuel sources without shutting off equipment. Propane burns cleaner with indefinitely shelf-stable fuel storage.

What is covered under the 3-Year Commercial Warranty?

Full coverage for parts and labor supported by our Dallas, TX depot. We stock replacement parts and provide direct technician telephone assistance.

$1,599.00 Free Liftgate Freight
GENMAX GM9000iED Gallery
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