Generac · Portable generator · GP6500 COsense 49ST
GP6500 COsense 49ST delivers up to 6,500 running watts and 8,125 starting watts from a portable gasoline system.
Infographic gallery
6,500W rated output
The comparison uses Generac’s published rated and peak, surge, or maximum output figures.
Energy source
Gasoline
Published runtime guidance
11.5 hours at 50% load on the primary listed fuel
172 lb
Listed weight
27.2 × 27 × 26.5 in
Dimensions
Charging or integration
Fueling and starting per Generac instructions; manual transfer equipment sold separately
Backup transfer
Not an automatic standby system; approved manual transfer equipment is required for home connection
Noise
No official dBA figure listed on the model page
Official product gallery
The current official image set for GP6500 COsense 49ST includes product views, connection diagrams, feature explanations, and compatible system configurations where Generac publishes them.
Complete specifications
These pages retain Generac's model-specific output, charging, battery, port, continuity, dimensions, environmental, engine, fuel, app-control, and warranty fields where published.
System capability
GP6500 COsense 49ST delivers up to 6,500 running watts and 8,125 starting watts from a portable gasoline system.
Power delivery
GP Series 6500 COSENSE® 49ST Portable Generator.
Safety and controls
Generac's GP6500 COsense® 49ST portable generator offers PowerRush™ Advanced Technology , which delivers more than a 40% increased starting capacity* allowing you to do more with less.
Runtime and fueling
Generac's OHV engine and large-capacity steel fuel tank ensures extended engine life and run times, while the steel tube cradle provides added strength.
Portability detail
The low-oil feature protects the generator from damage.
Connection options
The GP6500 COsense® 49ST can be easily transported across rough or difficult terrain with the heavy-duty wheels and easy fold-down handle.
Ownership note
Even maintenance is a breeze, with the hour meter keeping track of necessary upkeep at regular intervals.
Additional manufacturer note
Featuring PowerRush™ ADVANCED TECHNOLOGY – Delivers over 40% more starting capacity allowing you to do more with less.*.
Best-fit uses
Standout features
Use the independent calculator before choosing a battery system or generator.
Ownership resources
Start with the exact Generac GP6500 COsense 49ST 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.
This model’s published information references parallel operation. Use the manufacturer’s matching kit and pairing rules.
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.
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.