Generac GP3300i 3300-Watt Portable Inverter Generator with COsense (7153)

The Generac GP3300i Portable Inverter Generator (7153) delivers 3,300 starting watts and 2,500 running watts of clean inverter power in a compact, lightweight package. Built with Generac's PowerRush™ Advanced Inverter Technology and COsense™ carbon monoxide safety shutdown, the GP3300i is ideal for RV camping, tailgating, job site power, and emergency backup — wherever you need quiet, reliable portable power.

Key Features & Benefits

• PowerRush™ Advanced Inverter Technology: Delivers over 50% more starting capacity — start RV air conditioners, sump pumps, and other motor-driven equipment that other inverters can't handle.
• COsense™ CO Safety Shutdown: Built-in carbon monoxide sensor automatically shuts down the generator if dangerous CO levels are detected — meets PGMA G300-2018 safety standard.
• True Inverter Power (Clean Sine Wave): Safe for sensitive electronics like laptops, phones, TVs, and CPAP machines.
• Quiet Operation: Whisper-quiet inverter design — ideal for campgrounds, tailgates, and residential areas.
• Parallel Capable: Link two GP3300i units together with a parallel kit to double your power output.
• Multiple Outlet Options: Duplex 120V outlets, a 30A twist-lock outlet for RV power, and USB ports for direct device charging.
• Compact & Portable (59.5 lbs): Easy to load in the truck, RV, or storage closet — built for life on the move.
• 4.5 Hours Run Time at 50% Load: 1.06-gallon fuel tank delivers reliable runtime for extended use.
• Reliable OHV Engine: Generac's overhead-valve gas engine, engineered for long service life.

Specifications

• Model / SKU: Generac GP3300i (7153)
• Starting Watts: 3,300 W
• Running Watts: 2,500 W
• Fuel Type: Gasoline
• Fuel Tank Capacity: 1.06 gal
• Run Time at 50% Load: 4.5 hours
• Engine Type: OHV (Overhead Valve)
• Outlets: Duplex 120V, 30A twist-lock, USB
• Parallel Capable: Yes
• COsense CO Sensor: Yes (automatic shutdown)
• Dimensions (L × W × H): 22.3" × 13.4" × 18.4"
• Weight: 59.5 lbs

Common Applications

• RV Power: Run your RV AC, refrigerator, lights, and devices on the road
• Job Site Power: Portable power for tools and lighting at remote work sites
• Tailgating & Camping: Quiet inverter power for outdoor gatherings without disturbing neighbors
• Emergency Backup Power: Keep essentials running during Houston-area hurricanes, tropical storms, and grid outages

Buy the Generac GP3300i in Houston & San Antonio, TX

Tool Mart is your trusted Texas source for Generac portable generators and inverter generators. With Houston's hurricane season running June through November — and the unpredictable winter weather Texans have come to expect — having a reliable portable generator on hand isn't optional, it's essential. Order the Generac GP3300i (7153) online for same-day pickup at our Houston or San Antonio retail locations, or request fast local delivery.

Need help comparing Generac generators or sizing the right wattage for your home or RV? Call our Houston store or visit us in person — our team helps Texas homeowners, contractors, and RV owners pick the right portable power solution every day.