main product image


Model #6672

Starting At

$749.00 MSRP Where To Buy

Add to My Products


Generac’s Rapid Start portable generators with PowerDial™, provides back up power with the turn of a dial. The PowerDial streamlines the start-up process by putting all the controls on one convenient dial, so no more separate switches for turning on the engine, opening the fuel valve, or to adjust the choke.


PowerDial™ integrates the start, run and stop functions into one simple-to-use dial, conveniently located for quicker startup and shut-down, eliminating the search for separate controls in an emergency

Generac's 389cc OHV engine with splash lubrication provides a long engine life

Low-oil shutdown automatically safeguards engine from damage

Covered outlets provide added protection from the environment and rugged working conditions

Hour Meter tracks maintenance intervals.


1-¼ inch hardened steel tube cradle for added durability and strength

Fold-down, locking handle for sturdy portability and compact storage.

Large-capacity fuel tank with incorporated fuel gauge provides durability and extended run times

Heavy-duty, never-flat wheels for reliable portability

RS Series Accessories

Maximize your investment and maintain your Generac portable generator with a variety of accessories.

Generac values your feedback!

When writing your review, please consider the following guidelines:

  • Prior to providing a review, refer to a product’s documentation to ensure that unit is being used and maintained properly
  • Alluding to issues incurred in the wake of negligent maintenance or improper use will void review submissions
  • Focus on your experience with the product and its features
  • Provide details about why you liked or disliked a product
  • Reviews submitted for products other than those listed will be rejected immediately
  • Any product reviews referencing independent authorized dealers, service providers, or retailers by name will NOT be posted. (Dealer reviews can be provided here)
  • All submitted reviews are subject to the terms set forth in our Terms of Use

We reserve the right not to post your review if it contains any of the following types of content or violates other guidelines:

  • Obscenities, discriminatory language, or other language not suitable for a public forum
  • Advertisements, “spam” content, or references to other products, offers, or websites
  • Email addresses, URLs, phone numbers, product serial numbers, physical addresses or other forms of contact information
  • Critical or spiteful comments on other reviews posted on the page or their authors

If you wish to share feedback with us about product selection, pricing, ordering, delivery, or other customer service issues, please do not submit this feedback through a product review. Instead, contact us directly.

Enjoy writing your review!

Rated 5 out of 5 by from Excellent for the price Got the generator for the hurricane season in Florida but, no hurricanes affected me so it stayed in box for a year. We got prepared for Dorian to arrive and got the generator full of gas and oil and it started on the first pull and I had it running for a few hours with no problem. Ran the refrigerator, fans and a portable A/C unit and it handle it well enough.
Date published: 2019-10-03
Rated 5 out of 5 by from Excellent This is a excellent Generator we ran it for 2 weeks maybe even more straight just enough time to change oil and fuel up during Florence and ran with out a problem ran everything I wanted. And this year I was getting ready for Dorian and it started with the first pull.
Date published: 2019-09-08
Rated 5 out of 5 by from Power to spare Purchased this unit after hurricane Irma hit. Was borrowing the neighbors gen for the first 5 days we were without power, but they came home and we needed something to run the house. We powered multiple fans, tv entertainment center with 5.1 surround, refrigerator, 6000btu window shaker a/c and multiple portable electronics around the clock and this generator didn't flinch. Started on the second pull. I have no doubts it can handle a bigger work load the next time we need it.
Date published: 2019-09-05
Rated 1 out of 5 by from Not easy to use Pulling the chord is too hard and won’t start. I read the manual and it is a disaster. 2.5 hours and it won’t start. I push the button for rapid start and nothing happens. Pulling the chord is impossible. Not recommending at this time.
Date published: 2019-09-04
Rated 1 out of 5 by from Generac Generator RS5500 Have this Generator for 2 yr had been running fine getting ready to use it again and the gas keeps going into the oil tank. Carburetor, air filter and spark plug have all been checked out all are good. No one can tell me whats wrong wasted $800.00 !!!!!!!!!!!!
Date published: 2019-09-01
Rated 5 out of 5 by from Great experience Well here we go again. WE bought this 4 years ago for Hurricane Michael and did not need it. 2 years ago we had Hurricane Irma and it ran like a champ for 2 days. Now we have Hurricane Dorian coming and while we are in Jacksonville Florida we may not need it, I took it out of the garage, pulled it 3 time and cranked like a pro. It runs everything we need. Thanks.
Date published: 2019-08-29
Rated 5 out of 5 by from A little beast I purchased this a few years ago for hurricane use as wife is on oxygen. Didn't get a chance to use it during Florence as we decided to evacuate. I recently hooked it directly to my 4 1/2 ton Trane HVAC condenser unit and it ran it like a champ. This is probably at it's maximum surge capacity but it is running it. If needed it is good to have power but we also have to have a/c for my wife's breathing. I have an 8000 running the rest of the house through the main panel and air handler inside. This RS5500 is a solid medium size generator and met all my expectations and then some. Thanks again.
Date published: 2019-08-23
Rated 1 out of 5 by from Too many convenient features create a headache My first experience using my Generac RS 5500 was a disaster. We had-had a blizzard and the power went out. Finally a reason to use my new generator. It starts and runs great until I shut it off for the night and all the snow that had been melting on it due to the engine heat turn to ice. At 5 AM as I’m leaving for work I go outside to start it up so my family can start their day. The cute little power, fuel, choke combo knob, for which makes no sense unless you are completely incompetent to locate each separately. It’s frozen or shorted due to the ice. After three hours out in the cold and loss of pay I finally got it going again. The next problem is the fuel gauge. Anybody familiar with portable generators knows putting a fuel gauge on them is a complete waste of time and money after a few uses in poor weather they become clouded and unreadable. Problem with this design as it sits in a recessed rain catcher. It doesn’t take long for the rubber seal to start leaking. Short of filling the rain collector with some type of sealant you will no longer be able to use your generator in the rain or snow because you will be filling your fuel tank with water. Combustion motors don’t run well on water. For me a company who speciality is generators these are design flaws that shouldn’t happen.
Date published: 2019-06-11
  • y_2019, m_10, d_17, h_7
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.13
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_127
  • loc_, sid_rs5500, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_generac
  • bvseo_sdk, net_sdk,
  • CLOUD, getReviews, 0ms
RS5500 is rated 4.6 out of 5 by 127.
  • y_2019, m_10, d_17, h_7
  • bvseo_bulk, prod_bvrr, vn_bulk_2.0.13
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_127
  • loc_, sid_rs5500, prod, sort_[SortEntry(order=FEATURED, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_generac
  • bvseo_sdk, net_sdk,
  • CLOUD, getAggregateRating, 16ms