Atlas Copco P8000W Portable Generator | 7,000W Gas, 6.6-Gal Tank

Atlas Copco P8000W: The Heavy Hitter of the P-Range

7,000 surge watts. 6,500 rated watts. 8 hours of runtime. One generator that doesn't blink.

If you've outgrown a 5 kW generator and you need a portable powerhouse that runs framing crews, dries flooded basements, keeps the dairy parlor moving, or backs up the whole house through a multi-day outage, the Atlas Copco P8000W portable generator is built for you. It's the largest open-frame conventional generator in Atlas Copco's P-range, and it has the engine, the fuel, and the chassis to prove it.

What the Atlas Copco P8000W Delivers

More usable power

6.5 kVA continuous output and a 7.0 kVA surge ceiling let you run a heavy 240V load — an electric water heater, a deep-well submersible pump, a stick welder — while still leaving capacity for tools and lighting on the 120V duplex outlets. That's the kind of headroom that separates a contractor-grade generator from a homeowner unit.

A serious 420 cc engine

The P8000W is powered by the Atlas Copco AC420FD, a 420 cc air-cooled single-cylinder OHV gasoline engine producing 9 kW of mechanical output (about 12 HP) at 3,600 rpm. EPA Tier 2 compliant. OHV design for cooler running, longer life, and less oil consumption. Cast-iron cylinder sleeve. This is a Honda-class engine architecture, built by Atlas Copco to its own industrial standards.

8 hours of runtime, 6.6-gallon tank

Run it overnight. Run it through a long shift. Run it through a windstorm. The 6.6-gallon fuel tank gives you 8 hours of autonomy at rated load and significantly longer at partial load.

Electric start with recoil backup

A 12V key starter (battery included) brings the AC420FD to life in seconds, with a recoil pull cord as a backup — so you always have a way to start, even if the battery is dead.

Wheel kit, AVR, and pro-grade protection

Pneumatic-style wheels and a folding handle make the 183-lb unit one-person movable. Automatic Voltage Regulation keeps line voltage stable for sensitive electronics. Low-oil shutdown, master circuit breaker, hour meter, and an analog voltmeter are all standard. The full roll-cage steel frame and rubberized engine mounts mean it shrugs off the bouncing it'll take in the bed of a service truck.

Full Specification Sheet

Where the P8000W Earns Its Keep

• Framing & roofing crews — run two miter saws, a couple of nail-gun compressors, a portable AC unit, and a job radio simultaneously without tripping breakers.
• Flood & restoration work — power 240V submersible pumps, dehumidifiers, and air movers from one machine.
• Whole-home essentials backup — with a transfer switch you can run a well pump, sump pump, refrigerator/freezer, furnace blower, lighting circuits, and a few outlets simultaneously. Bigger homes with central AC may still need to load-manage, but most essentials run easily.
• Dairy & livestock operations — keep parlor vacuum pumps, milk-tank chillers, ventilation, and lighting going through an outage. The 240V outlet feeds into a transfer-switched essential-loads sub-panel without trouble.
• Outdoor events & mobile catering — food trucks, festival booths, and pop-up vendors with multiple appliances and lighting circuits.
• Welding — the L14-30R outlet handles most 30-amp 240V stick and small MIG welders.

Why Buy Atlas Copco

Atlas Copco has been building industrial-grade power and air equipment for over 150 years. Their portable generators are designed by the same engineering team that builds mine-site diesel gensets and oil-and-gas-field power packs — just scaled down for the contractor, the rancher, and the homeowner. You get pro-grade build quality, a global parts and dealer network, and the option of an extended warranty up to 5 years or 5,000 operating hours.

Add the Atlas Copco P8000W to your cart below, or get in touch with our power-equipment team to discuss transfer-switch sizing, gen-cord pairings, and bulk-fleet pricing.