Buy Generac GP6500 6500 Watt Portable Generator, Gas, COsense, PowerRush

Generac GP6500 6500 Watt portable generator delivers reliable power for home backup, job sites, and outdoor use, featuring PowerRush Advanced Technology, COsense carbon monoxide protection, and up to 11.5 hours run time at 50% load.

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GP6500 6500 Watt Portable Generator for sale

The Generac GP6500 6500 Watt Portable Generator is a robust, gasoline‑powered unit designed for homeowners, contractors, and outdoor users who need dependable power on the go. With 6,500 running watts and 8,125 starting watts, it can handle essential household circuits, job‑site tools, and event equipment with ease. PowerRush Advanced Technology delivers over 40% more starting capacity, allowing high‑demand tools and motors to start more easily without overloading the generator.

The GP6500 is equipped with Generac’s durable 389cc OHV engine, a large 7.9 gal steel fuel tank with integrated fuel gauge, and a heavy‑duty steel tube frame for long service life. COsense (CO‑SENSE) technology automatically shuts down the generator when dangerous carbon monoxide levels are detected, adding an important safety layer for residential and light commercial users. A fold‑down locking handle, 9.5 in never‑flat wheels, and included 20 ft multi‑outlet generator cord make transport and power distribution fast and convenient on any site. Buy Generac GP6500 6500 Watt Portable Generator

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Key features

• 6,500 running watts / 8,125 starting watts, 120/240 V, 60 Hz single‑phase output.

• PowerRush Advanced Technology – delivers over 40% more starting capacity for easier starting of motors and tools.

• COsense / CO‑SENSE technology – automatically shuts off generator when elevated carbon monoxide levels are detected.

• Generac 389cc OHV engine with splash lubrication for long engine life.

• Large 7.9 gal (29.9 L) steel fuel tank with fuel gauge, up to 11.5 hours runtime at 50% load and up to about 16.5 hours at 25% load.

• Heavy‑duty steel tube cradle for added strength and durability.

• Low‑oil shutdown protects the engine from damage.

• Recoil (pull) start for simple, reliable starting; some GP6500E variants offer electric start if you choose to stock them.

• Hour meter to track maintenance intervals.

• Fold‑down locking handle and 9.5 in never‑flat wheels for easy transportation.

• 20 ft, 20 A outdoor multi‑outlet power cord included on many GP6500 COsense packages.

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Technical specifications – Generac GP6500 6500 Watt Portable Generator Suppliers

Electrical

• Running watts: 6,500 W.

• Starting (surge) watts: 8,125 W.

• AC voltage: 120/240 VAC.

• Frequency: 60 Hz.

• Rated amperage at 120/240 V: approx. 54.2 A / 27.1 A.

• Power factor: 1.0 (nominal).

• Automatic voltage regulation (AVR): Yes.

• Neutral bonded to ground: Yes.

Engine & starting

• Engine type: Generac OHV, 4‑stroke.

• Displacement: 389 cc.

• Engine speed: 3,600 RPM.

• Fuel type: Unleaded gasoline (single‑fuel GP6500; separate GP6500E Dual Fuel variants exist but are different SKUs).

• Starting method: Recoil (pull start) for base GP6500 COsense models; electric start available on GP6500E variants.

• Lubrication method: Splash lubrication.

• Recommended engine oil: 10W‑30 / SAE 30 (ambient‑dependent).

• Oil capacity: 1.06 qt (1.0 L).

• Low‑oil shutdown: Yes.

Fuel system & runtime

• Fuel tank capacity: 7.9 gal (29.9 L) steel tank with integrated fuel gauge.

• Run time at 25% load: approx. 16.5 hours.

• Run time at 50% load: approx. 11.5 hours (many retail listings also quote ~10.5–11 hours depending on variant).

Outlets & control panel

Typical GP6500 COsense configuration:

• (2) 120 V, 20 A 5‑20R GFCI duplex outlets.

• (1) 120/240 V, 30 A L14‑30R twist‑lock outlet (transfer‑switch ready).

• Hour meter and COsense indicator lights (hazard and fault).

• 30 A 2‑pole circuit breaker and 20 A single‑pole breakers for branch protection.

• On/off switch on control panel.

Dimensions & weight

Values for current GP6500 COsense models:

• Length: approx. 27.2 in (69.2 cm).

• Width: approx. 27 in (68.4 cm).

• Height: approx. 26.5 in (67.4 cm).

• Weight: approx. 172 lb (78–86 kg depending on configuration).

Frame, mobility & included items

• Frame: hardened steel tube cradle for protection and rigidity.

• Wheels: 9.5 in (approx.) never‑flat tires.

• Handle: dual‑grip, single folding handle with lock pin.

• Included accessories (typical GP6500 COsense): 20 ft 20 A multi‑outlet generator cord, engine oil, oil funnel, handle and wheel kit, owner’s manual.

Safety & compliance

• COsense / CO‑SENSE carbon monoxide sensor with automatic shutdown.

• Circuit breaker protection on all outlets.

• Low‑oil engine shutdown.

• Air‑cooled design with standard sound level (above 60 dB, typical for open‑frame generators of this size).

• Emissions configurations: 49‑state and 50‑state/CSA variants (models 7680, 7683, 7690, 76905 etc., depending on region).

Warranty

• Residential use: 3‑year limited warranty (varies slightly by market).

• Commercial use: typically 1‑year limited warranty.

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New & Used Generac GP6500 6500 Watt Portable Generator

• Brand: Generac.

• Model series: GP6500 COsense.

• Running watts: 6,500 W.

• Starting watts: 8,125 W.

• Fuel type: Gasoline.

• Engine: 389 cc OHV.

• Tank capacity: 7.9 gal.

• Run time @ 50% load: approx. 11.5 h.

• Start type: Recoil (pull start).

• CO sensor: Yes (COsense).