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Generac PowerRush 3600 W Gas Portable Generator

Backup power for the essentials, built with a Generac OHV engine and PowerRush technology to handle bigger loads.
Generac MPN 7721 In Stock & Ready to Ship
$549.00
Ships $39.99 flat · large item
Heavy item · ships $39.99 flat Large items cost more to ship. Prefer to skip it? This is one to grab locally — no box, no shipping. Check your local store below ↓

About Product Overview

When the power goes out, the Generac Portable Generator 3600W steps in to keep essential circuits running, whether that's a fridge, a sump pump, or a string of work lights on a job site. It's built around a Generac OHV engine, the same engine brand that powers Generac's larger standby units, so you're getting an engine designed in-house rather than an outsourced motor.

This model carries Generac's PowerRush technology, which helps the generator handle bigger loads and simultaneous appliance start-up without needing to size up to a much larger unit. At 112 lbs, it's manageable enough for one person to move around a garage or truck bed, and the 120V output covers standard household and shop circuits.

  • 3600 watts output
  • Generac OHV engine
  • PowerRush technology for handling higher-demand loads
  • 120V output
  • Weight: 112 lbs
  • Dimensions: 18 x 27 x 19.7 inches

The Details Specifications

Ships Ground Travels by ground for safe handling — common for items with a lithium battery, aerosol, or liquid inside. Nothing extra to do on your end; it simply ships by truck instead of by air.
Non-Returnable This product cannot be returned. All sales final.
Brand Generac
Model / MPN 7721
UPC 696471086270
Weight 112 lbs
Safety Data Sheet (SDS) Manufacturer documentation · opens in new tab
Price check

Go ahead. Check.

You're going to price-check us against Amazon, Home Depot, and Lowe's. Everybody does. Good — open all three tabs. We'll wait. Then look hard at what you're actually being handed over there.

On Amazon, start with these four questions before you click buy.

01

Who's actually selling it

The brand name is on the listing. A different company is in the seller field. Those aren't the same thing, and the second one is who you're buying from.

02

Whether the warranty survives

Most manufacturers only honor a warranty when the unit came through an authorized dealer. We're authorized for Generac. A third-party marketplace seller usually isn't.

03

Where the box came from

Gray-market stock, returns repackaged as new, and outright fakes move through marketplaces constantly. It all looks identical in the photo. It stops looking identical when it fails.

04

Who you call when it breaks

Ours is a phone number with a person behind it who has held this product. M–F, 6 AM – 5 PM Pacific. (866) 469-8556

The big boxes don't care if your hardware store survives.

Amazon, Home Depot, and Lowe's are built to pull every hardware dollar out of your town. When the local shop can't keep the lights on, the counter where somebody actually knew which part you needed goes with it. We're built the other way: real brands so you're never stuck on a marketplace, and a straight answer to buy it down the street when that's the better call. Support independent hardware — it doesn't restock itself.

Why we tell you to shop local
Authorized dealer · Generac

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