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2-Piece Exterior Wall Vent for Enclosed Trailers - Powder Coated Steel - 10" x 12"
(42 reviews)
Price: $47.99
In Stock
Polar Hardware
2-Piece Exterior Wall Vent for Enclosed Trailers - Powder Coated Steel - 10" x 12"
Part Number: 9139
In Stock
$47.99
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- Reviews (42)
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Polar Hardware RV Vents and Fans - 9139
Highlights
- Keep water out: Sloped exterior and interior baffle channel rain to corner drain holes.
- Control airflow: Interior butterfly vent slides open or closed for adjustable ventilation.
- Built to last: Heavy-duty steel with white powder coat and zinc-plated interior grille.
- Simple install: Fits a 6" diameter hole; uses 20 screws and (4) #10/32 machine screws.
- Clean look: Glossy white exterior blends smoothly with enclosed trailer walls.
- Stay sealed: Includes gasket; sealant recommended for weather-tight installation.
Features to know about
Keeps Air Moving Without Letting Rain In: Sloped Exterior with Corner Drain Holes
This vent is built to move air while keeping rain out. The exterior piece is sloped so water naturally runs off instead of seeping in. Inside, a baffle channels any stray drops toward corner drain holes, so moisture doesn’t pool or leak through. It’s a simple design that works well for weather protection in all kinds of conditions.
Adjusts for the Right Airflow: Interior Butterfly Vent with Sliding Door
The round interior piece has a butterfly-style door that slides open or closed, letting you control how much air comes through. Close it up when you want to reduce dust or drafts, or open it wide for airflow when things get warm inside. It’s easy to adjust and gives you hands-on control over ventilation.
Built to Last Through the Elements: Steel Construction with Powder Coated Finish
The exterior vent is made from sturdy steel and finished in a white powder coat that helps it resist rust and wear. The interior grille is zinc-plated for added durability. Together they make a rugged setup that stands up to sun, rain, and rough road use without cracking or fading.
Straightforward Install with Standard Hardware: Fits 6" Diameter Hole or Smaller
The two-piece design mounts cleanly with built-in threaded holes for the interior vent. It fits a 6" diameter hole or smaller, and you’ll need 20 screws for the exterior and four #10/32 machine screws for the interior. For walls up to 1/2" thick, use machine screw 29515 and sealant (both sold separately) to finish it off tight and dry.
Looks Clean and Matches Up Well: Glossy White Finish
The exterior vent has a glossy white color that blends neatly with most surfaces. It looks clean and bright once mounted, matching well with white panels for a finished look that doesn’t stand out or clash.
Specs
Fit
- Fits: 6" diameter hole or smaller
Exterior Vent Dimensions
- Length: 12"
- Width: 10"
- Thickness: 2"
Interior Vent Dimensions
- Diameter: 7-1/4"
- Thickness: 3/16"
Note
- Mounting requirement: 20 Screws (sold separately) required to mount exterior piece
- Interior vent mounting: (4) #10/32 Machine screws (not included) required to mount interior vent
- Wall compatibility: For walls up to 1/2" thick, use machine screw 29515 (sold separately)
- Sealant: Sold separately
24 0024 Polar Hardware 2-Piece Side Ventilator for Enclosed Trailers - Metal - 10" x 12"
Replaces Polar 249139
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
- Wrong item was ordered
Ratings & Reviews
4.8
42 reviews
by:
Damon
03/01/2013
I have a commercial reach in cooler in my food truck. The compressor sits on the top. I took a temperature reading at just over 200 degrees on a 89 degree Florida day. After installing the Redline vent, the temperature has never gone above 105 degrees. That's a 100 degree difference! I did not use the butterfly damper as i wanted it to be always open. i added a vent cover with a sleeve, because of the 3" gap in the ceiling.
Looking at the picture of the truck you can barely see the vent top from 25' away. I didn't need more drag going down the road. With the low profile of the vent I get rid of heat and no drag. Perfect.
Looking at the picture of the truck you can barely see the vent top from 25' away. I didn't need more drag going down the road. With the low profile of the vent I get rid of heat and no drag. Perfect.
by:
Aaron
08/24/2018
Using a couple of these to ventilate my trailer, right where the fan on the jetter's engine is located. The baffled design seems well suited to provide ventilation without allowing water in. Construction seems sturdy albeit a couple fins were slightly bent. Didn't matter to me though since this is a work trailer.
I don't think it came with instructions, but then again, you're probably handy if you're buying this yourself. The loctite sealant on this site seems well suited for the job. Yes, I had some overage and installed this in low light conditions but hopefully I can clean it up later. It's tough stuff.
I don't think it came with instructions, but then again, you're probably handy if you're buying this yourself. The loctite sealant on this site seems well suited for the job. Yes, I had some overage and installed this in low light conditions but hopefully I can clean it up later. It's tough stuff.
by:
Dave T.
05/06/2017
Received the product in a timely manner. It had a small dent but I still used it. Technically the vent should be installed in s roof surface. I installed it vertically in the back door of my Promaster van. Recently I installed a Fletner rotary vent on the roof. This vent is my makeup air for the flettner. Can't beat it for the price. Simple and durable.
by:
Michael
11/16/2023
We're ordered these vents to help reduce the condensation build up in our toy hauler camper conversion. With these adjustable vents, the problem has gone away. They work perfectly.
Michael
11/17/2024
The vents that we installed o on our toy hauler camper conversion have been working perfectly. The moisture issue that we were experiencing is cured
by:
Jack in South Carolina
08/19/2017
Great experience with etrailer. Ordered a Fulton Spare Tire carrier and Roof Vent and my shipment arrived in 3 days. Fast delivery! I had to exchange the roof vent and couldn't be happier with etrailer.com customer service. Fast, courteous and the exchange was hassle free. I had the new vent in 3 days even before returning the original one. It just doesn't get any better than etrailer.com
by:
John
01/24/2019
Items purchased were as advertised. Decent quality. Nothing spectacular, but what I needed for my trailer.
The part of this transaction (not my first purchase from etrailer), is when there was a product availability issue, an etrailer representative telephoned to let me know of the delay. Later, etrailer sent a shipping status email.
Online shopping has its pros and cons. etrailer obviously has their act together to ensure top customer service!
The part of this transaction (not my first purchase from etrailer), is when there was a product availability issue, an etrailer representative telephoned to let me know of the delay. Later, etrailer sent a shipping status email.
Online shopping has its pros and cons. etrailer obviously has their act together to ensure top customer service!
by:
Don O.
10/09/2016
We used these vents to provide air circulation on a used 8' x 20' box/shed from an old box truck. The E-Track sockets gave us shelf supports for more storage in the box. All products worked well.
by:
Nicholas
01/04/2024
Provides for air flow while diverting rain.
Pre-painted inside and out to prevent rust staining on exterior of trailer.
Mounting accessories are included.
Only one negative for me: the closing device restricts airflow by 50% when fully opened—so I won’t be using it.
Overall an excellent product.
Pre-painted inside and out to prevent rust staining on exterior of trailer.
Mounting accessories are included.
Only one negative for me: the closing device restricts airflow by 50% when fully opened—so I won’t be using it.
Overall an excellent product.
Nicholas P.
1/5/2025
Excellent. No complaints. We’ll designed and well made. Greatest air passage of any wall-mounted units I researched. Looks and works great. Excellent value.
by:
Sanford
11/14/2024
Hello all. Parts came quick. All parts where in box. Only thing I think could be better is the packaging of the parts my package was busting open at one of the seams I feel the cardboard was not strong enough and the tape was not thick enough to protect the box from ripping.
by:
James
04/23/2024
These trailer vents are really nice. They may be a bit expensive but they’re worth the price and the quality is great. I would recommend this product to anyone needing a high quality vent for their trailer
by:
Randall P
10/02/2021
The vent is substantial- well made. I couldn't find a replacement for a broken vent cover that was large enough until someone at etrailer suggested this one. It turned out to be an excellent solution.
by:
Nicholas
02/08/2024
High quality professional grade painted vent grills not available anywhere else. The e-Trailer team was outstanding as usual.
by:
Frank T
01/25/2015
Just what I expected per the web site info. Good heavy duty item, great price. Within minutes of placing order I had a confirmation of the order, within 1 1/2 hours I received notice that it was shipped. Great job guys, thanks
by:
Gravey
01/12/2018
High quality products at a good value delivered on time; that's been my experience with etrailer so far. Website's easy to use as well.
by:
Steve
03/14/2013
Fast shipping and arrived just as ordered, thanks!
by:
Jim W.
03/16/2015
I bought two of these for a 16' trailer. They are even better than I had hoped for! Fast service, great product, good packaging.
by:
Alex Valdez
05/21/2019
Great customer service , excellent customer follow up, Great shopping experience Thanks Carol, will be doing business again, and again
by:
Scott Flanders
06/22/2017
It looks like it will do what I need it to do.. haven't had a chance to put it in to my trailer yet.
by:
John
02/14/2022
Could have used a paper template for hole layout patterns. Well made, should keep the elements out.
by:
Dusty
06/25/2021
Dusty B.
6/28/2022
These vents are great. No more junk plastic that you have to replace in a year.
by:
Patrick
06/15/2023
works
by:
RAY
03/16/2015
VERY GOOD, EVERYTHING I EXPECTED, QUALITY AND EFFECIENCY, THANKS,RR
by:
Nick
12/06/2021
Delivered on time and product is as advertised
by:
Kevin
04/16/2021
Great piece to work with. Works as you would want.
by:
Joe
05/31/2024
Excellent communication, packaged very well, arrived on-time, quality item
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view full answer... - Function Of Trailer Vents On Enclosed TrailerThe vents we offer for an enclosed trailer like part # 9139 are designed to allow air into the trailer. None of the vents we offer create a pressurized condition in the trailer and none are equipped with an air filtration system to keep dust out. Some of the features on the vents like # 9139 allow you to adjust the amount of airflow in the trailer with a butterfly valve mounted on the inside of the vent which would be operated from inside the trailer. Other trailer vents, like part #...
view full answer... - Should Louvers of 2-Piece Exterior Wall Vent for Enclosed Trailers Face Up or DownHey Ken, I would recommend having the vent louvers of the 2-Piece Exterior Wall Vent for Enclosed Trailers # 9139 facing down so that rain wouldn't make it's way into them. Even with the drain holes if you had a heavy enough of a rain you'd still run risk of it directing water into your trailer. Is there a reason you wanted to have them flipped?
view full answer... - Recommended Exterior Wall VentYes, it is! The 2-Piece Exterior Wall Vent for Enclosed Trailers item # 9139 would work great as a vent for your air conditioner. It has exterior dimensions of 12" long x 10" wide x 2" thick and interior dimensions of 7-1/4" diameter x 3/16" thick.
view full answer... - How Does Enclosed Trailer Vent Keep Rain Out of Trailer?The enclosed trailer vents we offer are designed to keep the rain out and the best option would be the 2-Piece Side Vent for Enclosed Trailers # 9139. As you can see from the accompanying photo the exterior piece is angled to keep rainwater out and it also has an interior baffle that will direct rainwater to drain holes in the corner of the vent. The butterfly vent also allows you to close it if you'd like. To install this vent you will need 20 screws and four #10/32 machine screws as well...
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- Attaching the Redline 2-Piece Roof Vent to the Front Side of a Cargo TrailerYes, you can mount the Redline 2-Piece Roof Vent, # 9139, on the front side of your cargo trailer. You will want to mount this vent with the vent slots facing down to prevent rain water or other elements from getting into the trailer. If you are looking for vents for the front side of your trailer, then I would recommend the 2-Piece Polypropylene Trailer Vent, # HMAV2-AVT2. This vent is designed specifically for the sides of trailers and is an inexpensive option that is also available...
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- Best Mounting Orientation of WAVT2-WHMAV2 2-Piece Polypropylene Trailer VentIf you mount the Redline 2-Piece Polypropylene Trailer Vent # WHMAV2-WAVT2 with the exterior part's flat slotted side facing forward (to increase air flow) there will definitely be a greater probability for rain and splashed water to enter the trailer. Still, as you noted from the customer-submitted photos we show on that item's page some have done this, and surely for the same reason. If you happened to stay in dry/desert areas this will be less of a concern but since you are in the...
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- Will 2-Piece Side Vent for Enclosed Trailer # 9139 Prevent Dust From Getting into TrailerIf you close the vent of the 2-Piece Side Vent for Enclosed Trailer # 9139 you'd greatly reduce dust getting into your trailer. It's not air tight though so some might make it through but I wouldn't expect it to be a level that you'd notice.
view full answer... - Availability of Side Vents for Toy Hauler TrailerFor trailer side vents we have a couple options but none that are 9 inch by 9 inch. We have the part # 9139 which is 10 by 12 inch and the part # HMAV2-AVT2 which is more of a semi-circle shape that is 6 by 8 inch.
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- Metal Side Vent for Enclosed TrailerThe best option for a metal side vent for your enclosed trailer is the 2-Piece Side for Enclosed Trailers - Metal - 10" x 12" # 9139 because its exterior will shed rain like you wanted, has a butterfly vent which you can turn if you wanted to adjust the amount of air flow. Though it does not have a screen you can easily add one as part of the vent to keep the bugs out of your trailer. This vent will simply require a 6" diameter hole and you will need four 10/32 machine screws to install...
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- What Color is 2-Piece Side Vent for Enclosed Trailers # 9139The color of the 2-Piece Side Vent for Enclosed Trailers # 9139 is a glossy white color. The color does look misleading next to the white background but it definitely is solid white. If you check out the picture I attached you'll see it installed on a white vehicle and you can see that it is totally white.
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- Can the 2-Piece Side Vent for Enclosed Trailers Be Used To Vent Trailer for GeneratorThe 2-Piece Side Vent for Enclosed Trailers part # 9139 will do a fine job of helping to vent the trailer for your generator. It looks like we have had a few customers use the vent for this exact purpose. If needed, you could install multiple side by side as well.
view full answer... - Recommended Vents for 10 x 20 Foot ShedThe only vents we have that will work for the shed walls are manual open and close. The 2-Piece Side for Enclosed Trailers - Metal - 10" x 12" # 9139 is the nicest option and will close from the inside for the winter heating. You can use the butterfly vent # 371800 on the exterior if you so desire but it gives you not interior help. The Side Cowl Ventilator with Screen # PLR1715 is the option I recommend because of your desire to open from the outside. This has a gasket for a nice...
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view full answer... - Can 6-1/4 Diameter Ventline Vanair Trailer Roof Vent be Installed on the WallAlthough I'm sure you could mount the Ventline Vanair Trailer Roof Vent # VP-543SP vertically on your wall, when I reached out to my contact at Ventline he said that it wasn't built to function that way so it may not operate properly. You could instead install a wall vent like part # 9139, # HMAV2-AVT2, or # WHMAV2-WAVT2 to help promote airflow if you don't want to/don't have room for an electric vent on your roof.
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Damon
8/30/2014
After having this product installed for a year it has performed flawlessly. No water drips in, and we have some pretty good daily storms in Florida. Evacuates the heat so when I enter the food truck I dont get slammed with heat. I think I need to put one on top of my pick up. When I get in it I can hardly breathe .