Generac 6500W 49ST CoSense Portable Generator

Generac 6500W 49ST Portable Generator

The Generac GP6500 COsense® portable generator delivers 6,500 watts of steady running power and up to 8,125 surge watts, making it ideal for powering heavy-duty appliances, tools, and even central air during outages. Driven by a durable OHV engine with splash lubrication, it offers dependable performance and a robust 7.9‑gallon steel fuel tank for extended runtime—up to around 11½ hours at half load, and up to 16½ hours at 25% load.

Equipped with Generac’s PowerRush™ Advanced Technology, the GP6500 ramps up its output by over 40% during heavy startup demands, ensuring it can handle tough inductive loads like HVAC compressors, pumps, and power tools without missing a beat. Meanwhile, COsense® technology adds a critical layer of safety—continuously monitoring for carbon monoxide and automatically shutting the unit down if levels become unsafe.

Built tough, the GP6500 features a steel tube frame, never-flat wheels, and a fold-down handle for stable transport across rough terrain and compact storage. The control panel includes four 120 V GFCI outlets and a 120/240 V twist-lock outlet, all covered for protection, along with an hour meter to track maintenance intervals. A low-oil shutdown guards the engine from damage, while the steel fuel tank’s integrated gauge keeps fuel management simple.

For homeowners, contractors, and outdoor enthusiasts who need reliable, high-output power with built-in safety and rugged portability, the Generac GP6500 checks all the boxes. It’s a versatile solution that combines long-lasting performance, advanced surge capacity, and CO protection in a thoughtfully designed package.

Generac 6500W Portable Generator Specs

Fuel Tank Capacity: 7.9 gal

Oil Capacity: 1.06 qt

Starting Method: Recoil

Running Watts: 6500

Starting Watts: 8125

Engine Type: OHV

Battery Included: No

Run Time @@ 50% Load: 11.5 hrs

Dimensions (LxWxH): 27.2 x 27 x 26.5 in.

Product Weight: 172 lbs.

Generac 6500W Portable Generator Features

• Featuring PowerRush™ ADVANCED TECHNOLOGY – Delivers over 40% more starting capacity allowing you to do more with less.*

• Generac's durable OHV engine with splash lubrication provides a long engine life.

• Large-capacity steel fuel tank with incorporated fuel gauge provides durability and up to a 10.5 hour run-time at 50% load.

• Low-oil level shutdown automatically safeguards engine from damage.

• 1 ¼” steel-tube cradle for added durability and strength.