Product Experts Available Now!
Call 1-800-940-8924
Advent Air RV Air Conditioner - 13,500 Btu - Ducted or Non-Ducted - Black - R410a - AC Unit Only
(1023 reviews)
Price: $620.99
In Stock
We'll connect you with nearby partnered installers who know this exact setup.
Advent Air RV Air Conditioner - 13,500 Btu - Ducted or Non-Ducted - Black - R410a - AC Unit Only
Part Number: ACM135B
In Stock
$620.99
Retail:$908.99
You Save: $288.00
Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.
We'll connect you with nearby partnered installers who know this exact setup.
- All Info
- Reviews (1023)
- Q & A (0)
- Photos
- Used (2)
Advent Air RV Air Conditioners - ACM135B
Highlights
- 13,500 BTU Cooling: Perfect fit for medium to large travel trailers and Class C RVs.
- Ducted or Ductless Use: Compatible with both systems for versatile installation.
- Noise Reduction Features: Foam pads minimize operational sound for a quieter experience.
- Direct Replacement for Coleman: Easily swaps with existing Coleman units using adapter.
- Collapsible Gasket: Prevents water seepage without needing extra sealant.
- Durable Black Cover: Protects components from debris while on the road.
- Compatible with R410A refrigerant AC systems only: This air conditioner only works with R410A refrigerant AC systems. It will not work with any newer R32 components.
Features to know about
Effortless Cool on Sweltering Days: 13,500 BTU Cooling Power
When the sun's blazing and you're relaxing in your RV, nothing beats the cool breeze of the Advent Air RV Air Conditioner ACM135B. With its 13,500 BTU cooling capacity, this AC unit is ideal for medium to large travel trailers, Class C motorhomes, and standard fifth wheels, covering 200-300 square feet effortlessly. You'll find relief on even the hottest days, ensuring your journeys remain enjoyable and your comfort is uncompromised.
Smooth Sailing with Diverse Compatibility: Plug-and-Play Simplicity
Frustrated with complex replacements? The Advent Air AC unit ACM135B simplifies the process with its versatile 6-pin connector, which allows it to easily replace older units like the Coleman Mach or Dometic setups using part numbers #ACCOLKIT or #ACCARKIT for seamless integration. The transition is hassle-free, preserving your original air distribution box and thermostat setup for continuity and simplicity.
Stay Cozy on Crisp Mornings: Optional Electric Heat Strip
Love those early morning adventures but dread the chill? Equip your Advent Air ACM135B with the optional electric heat strip (part #ACMHD), specifically tailored for mild mornings or cool evenings. This add-on keeps your RV snug without overwhelming it, enhancing comfort without the need for a full heater.
Silent Operation for Peaceful Retreats: Noise-Reduction Foam Pads
Noise can be a real spoiler when seeking tranquility in your RV. The ACM135B takes this into account with thick, collapsible gaskets and noise-reducing foam pads, ensuring your air conditioning experience is as quiet as it is cool. These pads support the unit and seal openings to lock out noise, providing a serene environment for you to unwind after a day of adventure.
Enduring Protection with a Stylish Touch: Hard Plastic Cover
Protecting your AC unit while enhancing your RV's appearance is easy with the ACM135B’s sleek, hard plastic cover. It shields internal components from water and debris while adding a modern, aerodynamic flair to your vehicle. Maintenance remains straightforward, affording you more time to enjoy your travels and less time fretting over upkeep.
Specs
Application
- Motor homes, travel trailers, and fifth wheels
- Not approved for school buses, food trucks, enclosed/utility trailers, or off-roading vehicles
Compatibility and Installation
- Fits: roofs 2-1/2" to 5" thick
- Opening size: 14-1/4" long x 14-1/4" wide
- Simple installation with 6-pin connector for easy plug-and-play installation
- Works with existing Advent Air or Dometic air distribution box that works with R410A refrigerant only.
Cooling Capacity
- Capacity: 13,500 Btu per hour
- Air flow: 500 cubic feet/minute
Dimensions and Weight
- Overall dimensions: 31-3/16" long x 24-7/8" wide x 12-13/16" tall
- Air conditioner weight: 68 lbs
Power and Electrical
- Air conditioner power draw (while running): 15 amps
- Compressor power draw (while running): 9.9 amps
- Fan motor power draw (while running): 2.6 amps
- Electrical rating: 115V, 60Hz
- Wire gauge: 12 AWG
Energy and Environmental
- Refrigerant: R410A, 16.9 oz
Warranty
- 2-Year limited warranty
Note
- This unit will not be compatible if the control box is built into the existing AC unit. Check the wiring of your existing setup to see if this unit will work for you.
- This unit is not forwards compatible with any AC system manufactured for use with the new R32 refrigerant. Requires R410A refrigerant compatible system components only.
ACM135B Advent Air RV Roof Air Conditioner - 13,500 Btu - Black - R410a Refrigerant - Ducted or Non-Ducted
Customer Satisfaction Score:
90% were satisfied with this product
10% of customers were not satisfied
- Arrived Damaged
- Product did not meet expectations
- Wrong item was ordered
Ratings & Reviews
4.5
1023 reviews
by:
Daniel
09/02/2026
2021
Jayco
Precept Prestige Motorhome
The part has been great. Easy to Install. I may have missed it in the write up but it wasn't a direct fit as it needed a 9 pin to 6 pin adapter harness for my RV. Fortunately, my mobile mechanic had one in his truck so we didn't have to make on. I believe etrailer sells it for around $50.
by:
Joseph
08/24/2026
2013
Forest River
Grey Wolf Travel Trailer
This was a direct replacement for my 2013 Dometic AC unit right down to the 6 pin plug and the mounting bolts. It hooked up to the existing control unit without issue and runs all speeds.
by:
William
05/24/2026
As of 5/24/26 @ 15:00 hrs central time the Advent ACM135B is installed and fully operational, cooling the bedroom of my rv perfectly.
Product arrived in excellent condition with no defects. Installation was as expected. Did rent a material lift from Home Depot which made the trip to the roof much easier and safe for this old man of 75yrs.
Thank you for the ease of ordering and your contact to let me know status of my order.
Product arrived in excellent condition with no defects. Installation was as expected. Did rent a material lift from Home Depot which made the trip to the roof much easier and safe for this old man of 75yrs.
Thank you for the ease of ordering and your contact to let me know status of my order.
by:
Paul
10/13/2026
2014
Coachmen
Catalina Travel Trailer
A/C worked well. Hopefully it will outlast the Coleman A/Cs (2) that only lasted 6 years each. I was able to install it and have it up and running the same day it was delivered. Thanks Much!
by:
Alex
10/19/2026
Works great, direct replacement.
by:
Dana
05/07/2026
Bought an Advent for a direct replacement for my living room a/c last year. Bedroom a/c went out this year. Have had great success with the replacement from last year. Easy plug and play installation.
by:
Gary
08/08/2025
Received unit on day promised , installed same day in about one hour and it works great so far. Thanks Alex for your help with my order very pleased Thanks again Gary
by:
Rae
05/17/2026
Was so glad that this was plug and play. Took us just a couple hours to unhook the old and get the new one in. So happy with it so far, but hasn't been to warm to get the full effect of it.
by:
Michael
06/14/2023
Pleasureway motorhome. Lots of support from e-trailer and the install went well. This unit is loud. It cools the motorhome easily but could use a lower/quieter fan speed.
Michael
6/14/2024
Working well. Install was pretty easy but you’ll need a hand for raiding it and setting the AC. I’m pleased with the purchase.
by:
Leta
09/09/2026
2014
Heartland RV
Cyclone 5W Toy Hauler
Rep was awesome thanks unit works great!
by:
David
07/31/2024
It's been a year since I installed the Advent AC and still going strong. I have 2 of them in our 5th wheel and both run great. I installed the other unit about 18 months ago. Highly recommend! And a good price!
David
8/1/2025
Still going strong a year later. Highly recommend if still available at a fair price!
by:
Ames
08/19/2026
Good unit, quick install.
by:
Rickey
10/15/2026
Excellent service
by:
John
08/10/2025
When my original Dometic AC died after only a few years, the Advent unit was by far the most affordable replacement option. It is confusing to figure out whether a replacement AC will work with your control box and thermostat, but this was plug and play with my Dometic setup. The unit arrived with cosmetic damage and no instructions, but we were able to resolve those issues fairly easily. I hope this one lasts longer than my original AC.
by:
Chris C
09/09/2024
Had to install new from ac after old ac was ruined by low branch. New unit installation was straightforward and the new ac cools wonderfully. Great unit.
by:
Theresa
07/07/2026
2010
Coleman
Ultra Lite Travel Trailer
Easy to order the part and took like 30mins to install.
by:
Peter
08/11/2025
2019 Forest River 22R - simple installation. Removed the old unit, new one installed same attachment points. Wiring was simple plug and play - connector was the same as factory. Unit had small dent due to shipping but was cosmetic and easily straightened. Advent model ACM135B. Hope this helps someone
by:
Tim
07/30/2026
2023
Keystone
Springdale Travel Trailer
It was allll goood thank you
by:
Jeff
07/01/2025
Ordered Advent AC, normal installation on my Class C, I was told it would be plug and play,nope! I needed the adapter plug from 6 to 9 pin. Called back to etrailer, the girl that answered the phone sighed around 7 times before she finally said nope,not in stock, Mid to end of july. So I looked it up on Amazon, found the same kit and will be here July 3rd. Hopefully my new a/c will work with the adapter. Super disappointed in this whole transaction!
by:
Nicholas B
07/11/2025
2006
Keystone
Cougar Travel Trailer
Sooo I just got this ac unit today, I wanted to return it as soon as I bought it thinking I couldn’t just plug it right in and go. But when I bought it was already in shipping mode, so that’s awesome in there end. And the best part is it just arrived 2 hours ago and I already have the ac running in the camper. Wow am I amazed and thank you guys soo much! Glad I didn’t back out of it. I have a 2006 couger by keystone 34ft that had the dometic that failed. It’s only 2 hours in but I’ll see how it goes from here. I’m just really amazed on shipping and just plug it and it bam. It’s done. 5 stars all day long and I really would recommend this to anyone that has already had an older dometic that needs to be replaced, THANK YOUUUU
by:
Michael
06/21/2025
2016
Forest River
Wildwood X-Lite Travel Trailer
Thank you ETrailer. This unit was an awesome choice for a direct replacemnt of an older Dometic AC unit on our camper. No extra wiring required and simple clear instructions from your web site ensured a hassle free install.
by:
Frank
07/02/2022
Super fast shipping, great price, very helpful staff. Installation was super easy. Replaced one of my original 1998 Duo Therm units with this unit. Getting the old unit unstuck was a bit of a challenge but from there it was just a matter of getting it lined up with the hole, attaching the cold control, putting the 4 bolts in, plugging it into the original connector, putting the plastic cover plate back on and turning it on! From experience I know that even the simplest of projects on an rv can snowball into a major ordeal. Without a doubt this was one of the easiest and most straightforward projects I’ve tackled. Working in 95° Oklahoma heat start to finish was under two hours and that included replacing the old foil sealing tape around the air duct. Having two strong people on top while I was inside to get it centered over the hole, getting the old unit down and the new unit up was a huge asset! I’ll be replacing the other unit sometime over the winter for sure. Just can’t think of anything negative about the whole experience.
Frank
7/23/2023
Still running great. Took an 11 day trip this year during plus 90° temps, used it almost non stop not only while camping but while traveling down the road using the generator. Still very pleased with the purchase.
by:
Kristen B
07/10/2025
2011
Coachmen
Freedom Express Travel Trailer
Product was exactly as described. We were able to remove the original Dometic AC unit from our 2011 Coachmen Freedom Express and put this one in its place. It was fairly easy to install and works great! The order process and shipping were easy!
by:
Mike
07/30/2025
Replaced old Dometic on my pop up. Was able to plug right into existing control panel with 6 pin connector. All done within an hour
by:
Colt
06/25/2022
It is a very good unit. I works really well. Was very simple to install and get it running. Will recommend that anyone buying this also buy the Starter kit ACMSCKIT to. it will make it so much easier on the unit and will help with the surge every time the kicks on.
Colt
6/26/2023
This Unit has worked great in our 1998 Coachman Pop-up camper. The company was great to deal with. The package showed up damaged but the unit still going strong.
25
1023
true
Show More Reviews
See what our Experts say about this Advent Air RV Air Conditioners
- What Adapter Should be Used With Advent Air AC Unit to Replace a Coleman SetupHey James, since you have a Coleman setup the correct adapter you should have used is the part # ACCOLKIT and that is why I suspect your units are communicating. This adapter was designed for Colemans whereas what you have is for Carrier setups.
view full answer... - Replacement AC for 2015 Forest River Vengeance Toy HaulerHey Dan! Can you at least tell me who the manufacturer is? You can try to swap it out with # ACM135B which fits a 6-pin but I can't guarantee it will work. Due to compatibility issues we only recommend replacing the AC unit itself with the same model. If you can't figure out the manufacturer and what model the AC is the best thing is a complete replacement. Right now is a good time to switch since all of the old models are being replaced with the new R32 units. This means old parts are...
view full answer... - Will the Advent Air Air Conditioner ACM135B Work as a Replacement for a Dometic Brisk II Evolution?Hey Garret thanks for all the information! The Advent Air RV Air Conditioner item # ACM135B would work as a replacement for your customer's Dometic Brisk II Evolution.
view full answer... - Will 13.5K Btu Advent AC Replace GE AC Unit on RV?Hey Jason, thanks for reaching out! There are some brands we know will work with the Advent Air RV Air Conditioner # ACM135B as a plug and play, but GE isn't one of them. You're more than welcome to try it out, but you might want to have a knowledgeable friend or tech on speed dial in case the plugs don't match up or are pinned differently. Worst-case you'll need to also need to get the Air Distribution Box w/ Wall-Mounted Thermostat # ACRG15 if you can't get this to work with your GE...
view full answer... - Direct Replacement RV AC Unit Solution for KZ Durango with Coleman Mach 8333B676Based on the part number you mentioned that would indicate you have a Coleman Mach RV AC unit so for a direct replacement AC unit solution you would want the Advent Air unit part # ACM135B that you mentioned as well as the Coleman adapter kit part # ACCOLKIT which allows it to plug right into the wiring you have on your RV in place of your current AC which will give you ability to use your current controls.
view full answer... - Is there a Wall Thermostat for the Advent Air RV Air Conditioner ACM135B?Hey Trevor. It is possible to add a wall thermostat to the Advent Air RV Air Conditioner item # ACM135B, however we do not have any left in stock anymore. It's the ASA Electronics ACTH12 Advent Digital Wall Thermostat. What kind of trailer or RV do you have?
view full answer... - What is Decibel Rating of Advent Air RV AC Unit part # ACM135BHey William, the Advent Air RV AC unit part # ACM135B that you referenced has a 76 decibel rating which is about the volume of a normal conversation. Are you looking for the quietest model possible? What are you replacing?
view full answer... - Picking Out Replacement Air Conditioner for 2016 Jayco WhitehawkHey Christopher, sorry to hear about your AC unit getting smashed. I am sure there's quite the story behind that...but anyway to pick out a replacement I would need to know more info. Are you wanting to just replace the top part of the setup? If so, I would need to know the brand and model of what you have as it would need to be an exact match. If you're looking to replace everything let me know as I can help pick out best system for your needs.
view full answer... - Looking for Advent Air RV AC Unit 13.5k BTU UnitHey Tony, we have the Advent Air RV AC unit part # ACM135B available and the price is available at the product link above. Do you have any questions about it?
view full answer... - Warranty of Advent Air RV AC UnitsHey John, thanks for reaching out! The Advent Air RV Air Conditioner you purchased has a 2-Year Warranty, similar to the part # ACM135B. Have you done any kind of troubleshooting on it yet?
view full answer... - Replacement Digital Thermostat for 2023 Holiday Rambler Admiral MotorhomeThanks for reaching out Paul. We can definitely help you upgrade to a digital thermostat in your 2023 Holiday Rambler Admiral motorhome. The important thing is making sure the new thermostat is compatible with your existing air conditioning system. Unlike residential thermostats, RV thermostats are specific to the A/C manufacturer and control system, so they aren't interchangeable between brands. Another consideration is the refrigerant change that occurred in 2025. Newer RV air conditioners...
view full answer... - Looking for AC Unit for 2019 Coachman Spirit Ultralight 2454 BHHey Michael, which two units are you considering for your 2019 coachman Spirit ultralight 2454 BH? Is one of the the Advent Air # ACM135B? This is a smaller unit that we don't have a lower air box for anymore so it wouldn't be what I would recommend. Instead for a similar unit that does have an air box you'd want the part # ADV77QR. If instead you were looking for something quieter and with more features the Furrion Variable Speed Chill Cube part # FR77TQ would be what I would recommend....
view full answer... - Recommended Replacement AC Unit for Carrier 68RV14102AThe Carrier 68RV14102A is no longer available but we have the 15,000 Btu Advent Air Replacement RV Air Conditioner for a Carrier Setup, # ACCAR150 that will allow you to replace this directly since it comes with the adapters needed to fit a Carrier setup. This unit also comes with a start capacitor to allow you to start the unit when there isn't enough power provided by the campsite power pedestal or generator. The included adapter wiring kit ensures that the AC works seamlessly with your...
view full answer... - Replacement Air Conditioner for a Dometic That Doesn't Blow Cold AirHey Debbie, thanks for reaching out! The Advent Air RV Air Conditioner # ACM135B won't work but the Furrion Chill HE # FR62PV will because it has a wiring adapter so it's compatible with your current wiring. Before replacing your whole AC unit I recommend having the compressor checked out. Usually when an air conditioner is operating but not blowing cold air it just means the compressor needs to be replaced or messed with. This could be a lot cheaper than an all out replacement unit.
view full answer... - Compatible Replacement For Dometic Brisk Air Duo-Therm AC 5951671Hello Kevin, thanks for reaching out. Our best option for replacing your Dometic Brisk Air Duo-Therm AC is the Furrion Chill HE # FR42PV. This comes with a 15K BTU AC unit, as well as a conversion kit that makes it directly compatible with your existing Dometic AC system. So all of your ceiling registers and thermostats will stay in place and work exactly the same. The Furrion units are great quality too. They are known for being efficient and quiet. I have linked our video review for this...
view full answer... - CFM For Advent Air RV Air Conditioner - 13,500 Btu - BlackHi William; we seem to get different answers from the manufacturer at different times which has lead to this. I just reached out to ASA and they said the # ACM135B is 450-460 CFM so that is the most up to date information we have.
view full answer... - 2021 Entegra Vision XL 34G Replacement AC Unit Hey Richard, you would want to climb the ladder at the back of your motorhome so that you can see what brand and model of RV AC unit you have. Manufacturers do not keep record of what unit they put on RVs and since they are easily replaceable it's possible you don't have the original. Let me know what you find and we can go from there. Keep in mind we don't recommend mixing upper unit and lower unit manufacturers anymore so you will need to have to match plus there was a refrigerant law...
view full answer... - Recommended Replacement for Advent AC135 Air Conditioner The 13,500 Btu Advent Air RV Air Conditioner, # ACM135 for a white cover or # ACM135B for black cover, will be a direct replacement for your current unit. You can even step up to the 15,000 Btu rated model, # ACM150 if you prefer. # ACM150B for black cover. This will be a remove and replace of the AC unit on the top of your RV, same wiring, thermostat, and air distribution system will continue to be used as is.
view full answer... - Recommended Replacement for Airxcel model 48253C969The Airxcel model 48253C969 that you identify is the same as a Coleman Mach AC unit rated for 13,500 Btu. The Advent Air RV Air Conditioner, # ACM135B that you linked to is a 13,500 Btu and designed to be a cost effective direct replacement for the Coleman AC units. It will install using the Coleman Mach Adapter Wiring Kit for Advent Air RV Air Conditioners, # ACCOLKIT. If you want to add the start capacitor that stores energy to be used later to help jumpstart the unit for the next startup,...
view full answer... - Difference Between the Advent Air RV Air Conditioner # ACDOM135B and # ACM135BThe only difference between the Advent Air Replacement Rooftop RV Air Conditioner # ACDOM135B and the part # ACM135B is that the first one includes the Start Capacitor # ACMSCKIT. Other than that the wiring on these units are the exact same. The Dometic setup simply means that this is compatible with your current setup (ceiling vent and thermostat) if you are replacing a Dometic rooftop AC unit. If you are replacing a different rooftop AC unit please let me know and I can see if we have...
view full answer... - Replacement A/C For A 2006 Carriage Cameo With A Carrier A/CFor your old Carrier A/C you can use either the: -Advent Air RV Air Conditioner # ACM135 for white, or, -The Advent Air RV Air Conditioner # ACM135B for black. You're going to also need the Carrier Adapter Wiring Kit for Advent Air RV Air Conditioners # ACCARKIT to be able to use your existing Carrier ceiling vent and thermostat. I did some research on your older Carrier unit, and it appears that you have a 13,500Btu heating capacity, ducted unit, that has the cool only option, no...
view full answer...
- Complete Replacement AC System for a Coleman Mach AC Unit Model # 48254C969I completely agree the best option will be a Furrion. We have found that Furrion AC's are around 20% quieter than the older Coleman Mach AC units. Since you want to replace your entire system, I recommend the Furrion Chill HE RV Air Conditioner System item # FR45PV in black or item # FR65PV in white. These kits include a 15,000 Btu AC unit, a LED air distribution box, and a wall thermostat. This system also includes a start capacitor to help when your generator doesn't supply enough power.
view full answer... - Troubleshooting Advent Air RV Air Conditioner Freezing UpYes, you have the Advent Air RV Air Conditioner w/ Air Distribution Box, Start Capacitor, and Heat Strip, # ACM150CH. This is not an issue that we get often but it does sometimes occur with most any unit, when this happens it is frequently due to air flow. First check the direction of the vents and how the air is being directed. If causing the cooled air to recirculate directly opposed to turning over the air in the RV, this can cause a freeze up situation. Pull the roof top cowling on...
view full answer... - Can the Advent Air RV Air Conditioner Be RechargedThe Advent Air RV Air Conditioner part # ACM135B like most RV air conditioners are sealed so they cannot be recharged aka there is no service port. That said, the unit has a two year warranty so if there are any issues within this time frame you will be covered. We don't offer any rechargeable RV air conditioners at this time.
view full answer...
Do you have a question about this RV Air Conditioner?
Used Items Available
Condition: Badly Dinged
Notes: Item has minor cosmetic dings on both sides.
Info for this part was:
Written by:
Lindsey S
Expert Research:
Michael H
Expert Research:
Jameson C
Video Edited:
Jacob T
Video Edited:
Chris R
Updated by:
Kathleen M
Updated by:
Mary K
Updated by:
Wilson B
Updated by:
Daron K
Updated by:
Amanda M
Updated by:
Halie H
Updated by:
Adam Y
Updated by:
Noah M
Updated by:
Dawn Z
Updated by:
Cody B
Updated by:
Ashley K
Updated by:
Kim H
Installed by:
Steven C
Test Fit:
Shane H
Video by:
Jonathan Y
Video by:
Michael B
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.
Mike L.
5/26/2026
You're very welcome William, I'm delighted we could help!!!