Atlas Copco P6500W Portable Generator | 5,500W Gas, Electric Start

Atlas Copco P6500W Portable Generator — 5,500 Watts of Jobsite-Grade Gas Power, Electric Start

The Atlas Copco P6500W portable generator is the mid-range workhorse of Atlas Copco's open-frame P-series — built for contractors who need real-deal 5.0 kVA rated power, ranchers who can't afford to lose freezers and milk tanks during an outage, and homeowners who want a serious whole-essentials backup. Push the 12-volt key starter, listen to the 389 cc OHV engine settle into a steady idle, and get 10 hours of clean 60 Hz electricity from a 6.6-gallon tank.

It's the right step up from the P3000W when you need to run more circuits at once, start a 240V well pump, or feed a transfer-switched essential-loads panel without thinking twice. And like every Atlas Copco generator, the P6500W is engineered to take a beating, simple to service, and backed by a global parts and service network.

Built for the People Who Need Power, Not Drama

Built for the contractor

5,500 surge watts handles miter saws, table saws, mid-size air compressors, and tile saws with starting current to spare. Two 120V duplex outlets let your crew plug in worklights, chargers, and grinders without ganging up on a single receptacle. The L14-30R twist-lock feeds a sub-panel or a heavy 240V tool. Wheels and a folding handle make it one-person mobile, and the 12V electric start gets the engine running fast on cold mornings.

Built for the farm and ranch

Heat lamps for newborn calves. Ventilation fans in the swine barn. Vacuum pumps for the parlor. The P6500W's 5.0 kVA continuous output and 10-hour autonomy at rated load mean you can keep critical equipment running through a long outage on a single fill. AVR keeps voltage clean for variable-frequency drives on irrigation pumps and grain bins.

Built for whole-home essentials backup

Wire the L14-30R outlet into an interlock kit or manual transfer switch and you can power your well pump, sump pump, refrigerator, freezer, furnace blower, and lighting circuits at the same time. The 6.6-gallon tank and 10-hour runtime mean two refills will get you through a typical multi-day outage.

Built for the rental fleet

Open-frame steel cage with anti-vibration mounts, dependable Atlas Copco AC390FD engine, low-oil shutdown, and a hour meter to track service intervals — this is a generator designed to come back from the rental yard ready to roll out again.

P6500W Specifications at a Glance

Outlet & Connectivity Guide

The P6500W's outlet panel is set up the way American electricians actually wire things:

• 2× NEMA 5-15R duplex (120V, 15A each) — for power tools, work lights, chargers, fans, refrigerators, and general-purpose loads. Two duplex outlets means up to four cords plugged in at once.
• 1× NEMA L14-30R twist-lock (120/240V, 30A) — pairs with a 30-amp gen-cord (sold separately) for a manual transfer switch or interlock kit. Carries both 120V legs plus neutral and ground for split-phase 240V loads such as well pumps, sub-panels, or 240V welders.
• Master circuit breaker with individual outlet breakers protects each circuit independently.
• Voltmeter and hour meter at the panel let you see line voltage and total engine hours at a glance.

Buyer Notes Before You Click Add to Cart

• This is a conventional generator — great for tools, motors, lights, pumps, refrigeration, and most household loads. For sensitive electronics (modern TVs, gaming PCs, medical CPAP), the P6500W's AVR is fine, but if you want true sine-wave inverter-clean power, look at the P6000iW inverter generator in this same range.
• Battery is included for the electric start. Top it up after long periods of storage; many users keep a trickle charger on it.
• Run it on fresh gasoline, ideally with stabilizer if it'll sit more than 30 days. The AC390FD engine prefers 87+ octane unleaded.
• For interlock/transfer switch wiring we recommend a licensed electrician. The L14-30R outlet is configured for split-phase 120/240V residential wiring.

Order the Atlas Copco P6500W below, or call our team if you'd like help comparing it against the smaller P3000W or the 8 kVA P8000W.