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Model #6672

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$749.00 MSRP Where To Buy

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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.

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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
Rated 5 out of 5 by from Good quality, easy to operate. Bought before an ice/snow storm and luckily didn’t need much but seems like a great product. I also like that it came with a heavy duty twist lock cord.
Date published: 2019-04-29
Rated 4 out of 5 by from Worked Great! Bought for hurricane Irma. We were without power for 12 days, our RS 5500 supplied us power that enabled us to run a room air conditioner around the clock as well as lights, microwave, (2) refrigerators and much more. I would fill the fuel tank up before bed and then fill it again in the morning when I started my day. We ran our unit practically 24 hrs a day around the clock and had absolutely no issues. The one problem I have is the fuel gauge window has changed from clear to very dark and discolored making it difficult to read. I am going to contact Generac and request a replacement.
Date published: 2019-01-12
Rated 4 out of 5 by from auto idle does this model have auto idle feature? need to know before purchasing. thanks. what's the next model up or down in watts that has auto idle if this one doesn't?
Date published: 2019-01-12
Rated 2 out of 5 by from well........... I've had this generator for 2 years. It got a pretty good workout after hurricane irma hit.Ran like a champ. It has 77 hrs on it and the fuel gauge has started to leak. I contacted generac to order a new one and was told it was on backorder and that they have no idea when it will be available. Which is nice....... $8 part holding up $800 generator. Guess i'll have to do a little redneck engineering on it to stop the leak since generac didn't offer up any solutions. No more generacs for me.
Date published: 2018-11-29
Rated 4 out of 5 by from first generator so far I have not used it but it seems to be straight forward to use
Date published: 2018-11-24
Rated 4 out of 5 by from Only owned 11 months and test run only... Hello Folks, I love the premise of the Generac easy dial operate, BUT I seemingly have run into a problem starting after my 11 month test! Fresh Gas and about 30-40 pulls without even a Pop? Though perhaps that I had missed a step but after watching this video I realized that I did not... Any Clue as to what may be wrong? Please advise and Thanks Much, Mike...
Date published: 2018-11-12
Rated 4 out of 5 by from Exceptionally easy to operate! Product overall was a great buy. Now the only reason I did not rate it with five stars is because I could not seem to find anything in the owners manual that talked about a Break-in period. Coming from a power generation background you know it’s extremely important to do a proper break-in, unless these are broke in at the factory before sale I could be wrong but I recommend that Generac adds something into the set-up criteria along with some extra oil for the matter. Finally the generator worked flawlessly during this hurricane season for I was without power for 4 days straight. It is a little on the noisy side, so I would also recommend a better muffling system on the exhaust. Overall great purchase
Date published: 2018-11-06
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RS5500 is rated 4.6 out of 5 by 120.
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