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Model #6672

Starting At

$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

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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
Rated 5 out of 5 by from Top quality product with great features. Bought after Hurricane Florence when my older generator broke down. Easy to operate and fulfilled all my needs.
Date published: 2018-10-31
Rated 5 out of 5 by from Would buy again Bought this for a hurracaine that did not come in 2017 put up without even taking out of box ,fast forward to hurracaine Michael in 2018, got out box day before it hit put oil in it ethanol free gas pulled 3 times, cranked off ,4 days without power never missed a beat, like the handle and wheels, power dial is cool idea, makes it a little aggravating for people who needs to run gas out carb and drain tank for storage till next hurracaine, needs little improvement in that area ,a way to shut fuel off and run out of carb and empty tank
Date published: 2018-10-25
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RS5500 is rated 4.7 out of 5 by 118.
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RS Series Accessories

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