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  5. With 12V Fan
  6. Powered Lift
MaxxAir MaxxFan Plus Roof Vent w/ 12V Fan - Powered Lift - 4 Speed - White

MaxxAir MaxxFan Plus Roof Vent w/ 12V Fan - Powered Lift - 4 Speed - White

Item # MA00-04751KSX
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Maxxair White RV Vents and Fans - MA00-04751KSX
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Lowest Prices for the best rv vents and fans from Maxxair. MaxxAir MaxxFan Plus Roof Vent w/ 12V Fan - Powered Lift - 4 Speed - White part number MA00-04751KSX can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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  • Reviews (237)
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Maxxair RV Vents and Fans - MA00-04751KSX

  • Roof Vent
  • Vent
  • With 12V Fan
  • Maxxair
  • Powered Lift
  • White


  • MaxxAir Plus roof vent with fan moves air out of your RV, camper, or enclosed trailer
  • 12 Volt DC, variable speed has 4 speed options
    • Exhausts air out
    • Circulates air like a ceiling fan when the vent is closed
  • Rain sensor automatically closed the dome and shuts off the fan when it gets wet
  • Wall control panel lets you operate the fan and lifting arms (MA00A03550K - sold separately)
  • White cover is made of high-density polypropylene
  • 2 Powered lifting arms support the dome to keep it open
  • Garnish not included (MA54FR - sold separately)

00-04751KSX MaxxAir MaxxFan Plus Roof Vent w/ 12V Fan - Powered Lift - 4 Speed - White





Video of MaxxAir MaxxFan Plus Roof Vent w/ 12V Fan - Powered Lift - 4 Speed - White

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of Maxxair RV Vents and Fans - Roof Vent - MA00-04751KSX


Customer Reviews

MaxxAir MaxxFan Plus Roof Vent w/ 12V Fan - Powered Lift - 4 Speed - White - MA00-04751KSX

Average Customer Rating:  4.8 out of 5 stars   (236 Customer Reviews)


- MA00-06200K
by:

Review from a similar MaxxFan in RV Vents and Fans


We ordered and DIY-installed two of these MaxxAir fans to replace ineffective and aging vent fans in our 5th wheel RV. Installation was straightforward using the easy-to-understand instructions. All the necessary hardware is included, although you'll need some butyl tape and self-leveling sealant to complete the installation on the rooftop. We love the ease of operation, the relatively quiet 10-speed fan, and the ability to use the fan even during a rain. The mounting bracket that fits the 14" roof opening is a one-time install, meaning that you don't have to tear into the roof and sealant again should you ever need to replace the fan and cover unit with the same or similar model. I agree with all the other positive reviews I've read about this product. 680545


Comments
We still love our MaxxAir fans!
H K - 08/05/2020

96451

- MA00-06200K
by:

Review from a similar MaxxFan in RV Vents and Fans


Good looking unit, can't wait to hook it up for functional test! 706855


Comments
The MaxxFan is the best money I spent on my tear, its whisper quiet and moves a lot of air!
Bobaluma - 09/25/2020

101426

- MA00-06200K
by:

Review from a similar MaxxFan in RV Vents and Fans


The Maxxair Deluxe fan works better than expected. We ordered the version without a remote and are extemely happy with the product. It took me a while to get around to putting it in my motorhome as I thought I would have to fish wires through my ceiling insulation, but when I remove the vent (with no fan) there were wires for the 12 volt lights already passing through the opening. Some YouTube videos warned against using power to your lights to power your fan since they are switched. Each light in our motorhome has its own switch in addition to the switch up front that controls them all. I just have to leave the main switch on and turn each individual light off. We do that anyway most of the time so it worked out fine. The vent fan was pretty easy to install and I am not the most handy person you will ever meet. As always the fine people at etrailer were friendly and helpful and they have at least as good a price as anyone and better than most. Very happy camper. 497875


Comments
Still love it. Thinking of adding another this summer!
Timothy J - 04/20/2019

54191

- MA00-06200K
by:

Review from a similar MaxxFan in RV Vents and Fans


Quick ship. Install in my 66 Airstream was a breeze. I put 1 in front and 1 in back to circulate air, which the originals just couldn't do very well. 556851



- MA00A04301K
by:

Review from a similar MaxxFan in RV Vents and Fans


1 year in use. Many bumpy roads. So far so good. 660677



- MA00A04401K
by:

Review from a similar MaxxFan in RV Vents and Fans


Great fan for the price. Installation was easy. You will spend time removing the old dicor on the roof if you are replacing a fan like we did but it was worth it. 553408


Comments
Great still!
scotts758 - 08/13/2019

58973

- MA00-06200K
by:

Review from a similar MaxxFan in RV Vents and Fans


I love these fans. When I bought a caravan I removed the fantastic fan for one of these because it can be left open when it rains....I rarely ever closed it just so I had airflow in the caravan. Now I have a van, installed it for the same reason. Expensive, but worth it in the long run. I wish they offered a non translucent top model. 662099


Comments
A yeah later and it still is the best thing I did to the van for increased comfort...next is solar
Deryk - 06/29/2020

84530

- MA00A04401K
by:

Review from a similar MaxxFan in RV Vents and Fans


Purchased to install in fifth wheel bedroom, where no fan existed, just a roof vent. Most time consuming was removing the old vent. The caulking removal was a real labor intensive operation. The factory must have used a fire hose to apply the stuff. Once the vent removed and the caulking mostly removed, the install of the maxxair went pretty smooth. Putty tape (purchased from local shop) under the rim, several stainless screws (15), came with fan, then finish roof top install with self leveling caulk around rim and on screw heads. Inside had to tie into 12v wiring at bathroom fan and fish wires to bedroom vent hole, less than 4 feet. Made connections, put on interior trim, and now wait for next RV outing to test efficiency. Works great in driveway. And one more thing, I also installed a Maxxair II vent cover in black. Helps to darken bedroom along with protecting vent. 279793



- MA00A04401K
by:

Review from a similar MaxxFan in RV Vents and Fans


Xcellnt Vent - Installed my vent a yr ago (long story), but only made it operational 10-2018, so I Very much like that it's manual, so i could open/close it without power. Best feature, dual lift arms. Able to drive with the vent open without the lid flapping "Very Stable". A great "Basic" fan vent without all fancy stuff like Rain Sensor, Thermostat, Variable Speed, like my last one that ends up not working after parts are no longer available. 4 speeds is enough. It's Quiet. Lifetime Lid Warranty "Awesome", my last one spider cracked from UV. Only option I'd like to see is "reverse". Doesn't feel like it's moving much air with the lid closed but I have not as yet used it as a ceiling fan to circulate heat. If it does it will be the perfect vent. I will be putting it to that test in the coming months so the jury is still out on that one. 583861



- MA00-06200K
by:

Review from a similar MaxxFan in RV Vents and Fans


Had heard good things about etrailer, so I thought I would give them a shot...They did not disappoint....They had the Maxxair fan that I wanted for my RV.....They priced matched as advertised.. Delivery was as indicated and they followed up to make sure I got what I wanted and was satisfied.... Can't ask for much more.....Will definitely buy from them down the road.....Thanks 614790



- MA00-05100K
by:

Review from a similar MaxxFan in RV Vents and Fans


It's been a year since we installed our first Maxxfan Deluxe Vent W/ 12v Fan - Manual - 10 Speed - White.... 1) It wasn't too difficult to remove the old fan and install the new one. Took a little patience with the first install, but by the third (we have three fans) it was a piece of cake. Don't forget to use Decor to ensure everything is sealed properly. 2) These fans are very powerful. The one in my bathroom will actually suck the door shut. When we set the one the living area to blow air in and the one in the bedroom to blow air out, air really moves and cools down the rv fast. 3) They are way more quiet compared to my old original fans. Only when I have them on the highest setting to I notice they are on. 4) The built in rain vent is very useful given that if it is raining the only air we get is through the fan vents as all the windows must be closed. 4) My only disappointment has been with the way the fan blades are designed, the air moves more sideways near the ceiling (which is good as hot air rises) but when it is really hot and I'm lying in bed I would like the air to blow downwards so I can feel it. 558588



- MA00-06200K
by:

Review from a similar MaxxFan in RV Vents and Fans


They still work but 2 out of the 3 fans squeak at low speed.. which I feel is a little premature for only being a year old. When really they started squeaking at 6months. All in all they do a great job of exchanging the air in our rig.. 719771



- MA00-06200K
by:

Review from a similar MaxxFan in RV Vents and Fans


I purchased this MaxxAir MaxxFan to replace a stock vent/fan that came on my teardrop camper. The most important thing to me was that the fan was quiet as it is only about 4 feet away while sleeping. This fan is so quiet that I can barely hear it on low and on high we can talk in normal tones and hear the television over it just fine. With the stock fan on we could not hear the TV even with the volume at max and could barely stand to leave it on while sleeping. The sleek profile actually adds style to the teardrop. My second hope is that it moves enough air that we won't need to use A/C - so far so good, this fan moves so much air that my curtains go sideways (and can still hear crickets outside) and the 10 speeds let me get it just perfect. Auto on at 78 degrees, reversible, ceiling fan... all nice bonuses. 100% satisfied with this product - Follow the directions, install is relatively easy, solid product. Hardest part for me was correcting the original opening which was not square. I used an oscillating tool to cut the inside shroud down, it was pretty quick but left some cleanup, not sure if it was ultimately any easier than using the prescribed hacksaw. 561667



- MA00-06200K
by:

Review from a similar MaxxFan in RV Vents and Fans


Nice product, very impressed with it’s design, construction, functions, quality and ease of operations. It looks great on my Transit van. Being it’s a medium height roof I don’t want it to be any higher than it has to be. The low profile is nice. The height of van with Maxxfan open is 9 ft. 4 in. The etrailer installation video on the Transit was very helpful. I made a frame just as described on the video. Using the 2 x 2 ft. piece of 3/4 inch plywood to make the frame is the way to go. It provides the strength I needed due to the weight of my solar panel bracket just 3 inches away. The two screws you see near the edge of the frame is the solar panel bracket. A constructed picture frame style frame would never support the weight. It is a strong solid frame. The roof is solid. 634921


Comments
Maxxair after 1 year is working great and looking good. I didn’t. Mention in my original review that I have it powered by my solar batteries. This way there is no problem with draining the truck battery. I can leave the van locked up and windows closed and exhaust the heat for hours when away exploring.
Robert - 04/25/2020

74121

- MA00-04000K
by:

Review from a similar MaxxFan in RV Vents and Fans


This is my second purchase of this fan. The first one went away when I sold my van. My new van will be receiving this one. I was so satisfied with my previous MaxxFan that purchasing a second one was a no-brainer. Quiet and reliable with a number of useful features. Note the double brackets supporting the top, unlike other competing vents. This is my third purchase from etrailer. Their prices are great and shipping is fast. 546143



- MA00-06200K
by:

Review from a similar MaxxFan in RV Vents and Fans


Nicely engineered unit that, with Maxxairs' thorough instructions, installed without difficulty. A nice addition to our fifth wheel... Equally important, the service from etrailer was top notch, the product was in stock, was shipped quickly and was priced competitively. We'll be back... 643823



- MA00-06200K
by:

Review from a similar MaxxFan in RV Vents and Fans


We have had our fan for over a year now and love it! It's well built and works great! etrailer.com was very helpful in our purchase and we would use them again. 694088



- MA00A04301K
by:

Review from a similar MaxxFan in RV Vents and Fans


Site could use one or two filters to help customers decide which unit to purchase. There is a large number to browse through. Purchase was easy. Unit properly described, shipping boxes were well packed. Unit installed easily, due to etrailer's how to install video. Happy with purchase and easy of installation. Will buy from etrailer again. Thank you. 716294


Comments
Product is excellent! Multiple speeds adds to overall quality of product design.
FooferJammer - 10/15/2020

102184

- MA00-06200K
by:

Review from a similar MaxxFan in RV Vents and Fans


Good quality and perfect for my needs! I had one installed in the bedroom and one in the living room to replace current vents and it creates great air circulation. Haven't tested yet whether it can be open while it's raining. 680222



- MA00-05100K
by:

Review from a similar MaxxFan in RV Vents and Fans


Nice fan, I put a 7000 over bed and installed this one over cabover in Class C. Install was easy and identical to the 7000. They need to include self taping screws to attach collar to roof, mine has a metal frame and included screws are for wood. It does have a thermostat button preset at 78 degrees so if you leave open it will pull or push air when cab reaches 78. 7000 has a remote and motor on lift, thats the only difference. 515231


Comments
Still working fine. Have had no problems and would definitely buy again.
ian m - 06/01/2019

55969

- MA00-05100K
by:

Review from a similar MaxxFan in RV Vents and Fans


My backyard Tuff Shed workshop has a turbine vent fan, which really doesn't work all that well. Over the years I've tried various powered fans, but have never been satisfied with the results. Now that it needs a roof, I was thinking about a solar roof fan. Since I have a 400 watt, 12 volt solar system for security lighting, I realized I could use a fan similar to the one in my RV. The installation was very easy, and the quality of the fan is excellent. Not having to worry about closing the lid for rain is great, and the automatic thermostat is a wonderful set and forget feature. I'm especially impressed how quiet it is. 547600



- MA00A04401K
by:

Review from a similar MaxxFan in RV Vents and Fans


Nice fit, very powerful, very adjustable, and much quieter than the unit that it replaced. Appears to have an option for a winter cover, based on some additional female sliding holes of some sort? that I know nothing about. 453835


Comments
Gregory, Thank you for your review. This Maxxfan includes molded mounting tabs to install a FanMate vent cover. The FanMate part 955003 slips over the molding tabs and clips on to provide superior rain protection.
-- Heather A - 11/21/2017

31164

- MA00-06200K
by:

Review from a similar MaxxFan in RV Vents and Fans


Installation was easy and simple. As long as you seal it correctly, you’ll love this product. I installed it in a back room of my 34’ tag-along. Kids were complaining that it was stuffy and no air flow. I did about a weeks worth of research and product research and found this product. It works wonderfully! We primarily use the exahust function. With the integrated rain shield, you won’t have to worry when it’s raining outside. I was a little disappointed in the distributing service from eTralier. I was initially told that the product was not in available stock and the item had to come from the distributor. After about the third e-mail notifying me of the same delay, I called and expressed my disappointment. I received the product 2 days after that phone call was made. 443611



- MA00A04301K
by:

Review from a similar MaxxFan in RV Vents and Fans


Not really happy with this product. Expensive fan that will not run for three minutes without turning itself off. Called the mfg , they said bad board they sent a replacement board , worked great for a week now it is back to turning itself off again!!! Not etrailers fault , just a sorry & expensive piece of junk. Wish i had bought the fantastic fan instead. How hard is it to build a 12 volt fan???? 552948


Comments
Still going strong!!!! Good product.
Arthur P - 08/18/2019

60155

- MA00-04000K
by:

Review from a similar MaxxFan in RV Vents and Fans


Great fans. We boondock a lot so don't use the AC much, so two of these give it lots of airflow and keeps us pretty cool in our 21' TT. They have lots of air flow to clear out the heat in just a few minutes. They are totally silent on low and not very loud on high (Some say quieter than the Superfan). When we cook we reverse the flow to blow in and pressurize the odors and smoke out the hood vent and kitchen window. The only recommendation I have is to consider the one with the remote control. My wife is 5'0" and cannot reach the controls to open the vent nor turn it on/off. 544636


Comments
Still great.
Carl - 07/22/2019

58070
30
255
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Ask the Experts about this Maxxair RV Vents and Fans

  • Parts Needed To Install MaxxAir MaxxFan Plus Roof Vent As New Install
    The MaxxAir MaxxFan Plus Roof Vent part # MA00-04751KSX is designed to replace an existing roof vent fan. Therefore, it does not come with everything needed for installation. The extra items you will need are as follows: Key Wall Control part # MA00A03550K Ceiling Garnish part # MA54FR RJ11 Communication Cable part # 34279523 Roof Vent Installation Kit part # 344270KITW
    view full answer...
  • Will 14" x 14" Roof Vent Fit a 2015 Lance 1052 Camper with 14-1/4" x 14-1/4" Roof Opening
    You will definitely be able to install the MaxxAir MaxxFan Plus Roof Vent w/ 12V Fan # MA00-04751KSX on your 2015 Lance 1052 truck camper just fine. Basically anybody that measures 14" or 14-1/4" for a vent has the same vent dimensions. People will measure either the opening on the inside or outside, the lid, or even just the opening in their roof which is where the slight differences come into play. If you measured 14-1/4" then the MaxxAir vents will fit like a glove. Please note that...
    view full answer...
  • How High does the MaxxAir MaxxFan Plus Roof Vent part # MA00-04751KSX Stick up off the Roof?
    The MaxxAir MaxxFan Plus Roof Vent part # MA00-04751KSX will be 3.25 inches over the roof line of your trailer when installed. To ensure proper installation I recommend using the Roof Vent Installation Kit part # 344270KITW. This will have all of the sealant and screws that you will need to make your vent water tight and ready for use after just a short drying period. I linked a video showing an installation.
    view full answer...
  • Can MaxxAir MaxxFan Plus Roof Vent # MA00-04751KSX Replace 4951KS
    Yes, the MaxxAir MaxxFan Plus Roof Vent # MA00-04751KSX that you referenced would easily replace the MaxxFan you currently have installed in your 2015 Montana 36RL as this fits the same size RV roof opening.
    view full answer...
  • Roof Vent With Variable Speed Fan, Powered Lift and No Thermostat for RV
    Based on what you described wanting the MaxxAir MaxxFan part # MA00-04751KSX is your best option. This has a 4 speed fan, a powered lift, and has no thermostat. I attached a review video for this for more info as well.
    view full answer...
  • Is There RV Roof Vent Option with Wall Mount Controller
    I have a solution that I think would work well for you but all of the roof vents we offer for RVs do use either remotes or controllers on the assembly itself. The MaxxFan Plus Roof Vent # MA00-04500K though comes with a wall mount for the remote though so you could leave the remote in the wall mount and you'd basically have a wall mount controller. If you check out the picture I attached you can see the remote being held in the wall mount.
    view full answer...
  • MaxxAir Roof Vent for RV that is Compatible with Wall Control Unit
    If you have the wall control part # MA00A03550K installed in the wall of your trailer the Maxxair Fan part # MA00-04751KSX would easily integrate into it and work great. If you have a different switch setup let me know and I'll see what options you may have.
    view full answer...
  • Roof Vent Cover for MaxxAir MaxxFan Plus on Grand Design Solitude
    If you've got a Maxx Air MaxxFan Plus like the # MA00-04751KSX you can use the MaxxAir FanMate RV and Trailer Roof Vent Cover - 25" x 18-1/8" x 10-1/4" - Smoke # MA00-955003, which is designed to fit 2015 and newer MaxxFan and MaxxFan Plus roof vents with mounting tabs. This will allow you to keep your vent open and running no matter what the weather is like outside. I've also linked a review video of this part and the other available colors of this vent cover in case you're looking...
    view full answer...
  • Do you Carry a Fan that will Both Intake and Exhaust Air for my Roof Vent?
    I have a great solution for you but the MaxxAir MaxxFan Plus Roof Vent w/ 12V Fan part # MA00-04751KSX does not function as a in and out type of fan instead use the MaxxFan Plus Roof Vent w/ 12V Fan and Thermostat part # MA00-04000K this will give you some additional features like a thermostat if you want to set it to come on when the temperature dictates. Of course it is also reversible at the touch of a button simply choose what way you want the air to go. This one also has 10 speeds...
    view full answer...
  • Troubleshooting MaxxFan Not Opening on 2017 Grand Design Reflection
    It looks like you have the MaxxAir MaxxFan Plus Roof Vent w/ 12V Fan - Powered Lift - 4 Speed - White # MA00-04751KSX. The unit sounds like it is malfunctioning and this could be due to the rain sensor # MA34FR. It sounds to me like the sensor is seeing moisture whether there or not and keeping the power lid from opening. I recommend unplugging the rain sensor and seeing if all the other functions work. If so, then simply replace that sensor. If the other features still do not work,...
    view full answer...
  • Can RV Vent Hook up to Existing Wiring
    Vent fans are two-wire designs so they are much less complicated than air conditioning units. They only have a 12 volt wire and ground wire so you just need to be able to attach the 12 volt to a power source and have a good ground and that's all there is to it. To install them you will need the Roof Vent Installation Kit # 344270KITW and for extra wire if needed the 16-Gauge # DW02359-1, which is sold by the foot. For fans, so long as you have the standard 14" x 14" opening, which you...
    view full answer...

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Info for this part was:

Installed by:
Jeff D
Expert Research:
Jameson C
Edited by:
Amanda M
Written by:
Adam Y

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