Beat the heat with a brand-new Dometic FreshJet 3 Series rooftop air conditioner at a real surplus price. This FJX3473MBKAS (Dometic item 9600028599) delivers 13,500 BTU of cooling in Dometic’s modern black medium-profile shroud – the same unit RV builders are putting on new travel trailers, fifth wheels and toy haulers today.
Dometic designed the FreshJet 3 to cool harder and run quieter than the units it replaces: about 13% more cooling capacity, 15% more airflow and a 4 dB drop in noise, while using 28% less refrigerant and weighing about 14% less. It drops into the standard 14″ x 14″ roof opening, comes with a pre-installed roof compression gasket, and works in ducted or non-ducted installs with the matching Dometic ceiling assembly.
These units are new OEM surplus from an RV manufacturer and have never been installed. They may show light cosmetic marks from storage and handling.
JT Custom Trailers is a premier custom trailer upfitter in Jefferson, Ohio. We install and service RV climate systems every day, so if you have fitment or install questions, we can help.
Key Features
- Dometic FreshJet 3 Series, model FJX3473MBKAS
- Dometic item # 9600028599
- 13,500 BTU cooling capacity
- 115 VAC, 60 Hz, single phase; 13 amp rated (13.6 amp compressor load)
- R-410A refrigerant
- Medium-profile black shroud
- Fits the standard 14″ x 14″ roof vent opening
- Ducted or non-ducted installation (with matching ceiling assembly)
- Pre-installed roof compression gasket
- Approx. 27-5/8″ L x 29-5/8″ W x 13-7/8″ H; approx. 64 lbs
- 2024 production date, assembled in Mexico
- New OEM surplus, never installed
Common Uses
- Travel trailer roof AC replacement
- Fifth wheel second or third zone AC
- Toy hauler garage cooling
- Motorhome rooftop AC upgrade
- Replacement for older Dometic Brisk / Penguin units (14″ x 14″ opening)
- Enclosed cargo and race trailer lounges
- Concession, vending and food trailers
- Mobile office, command and job-site trailers
- Custom trailer upfits and mobile workshops
Important Note
This is the ROOFTOP UNIT ONLY. The ceiling assembly (air distribution box), thermostat and control kit are NOT included. Dometic lists ceiling assemblies 3314851.000, 3314850.000 and 3317404.000 for the FreshJet 3; please confirm the right one for your ducted or non-ducted setup before you buy. Questions? Contact us and we will help you check fitment.
Condition
New surplus (unused, may show minor cosmetic wear from storage)
Shipping
- Fast shipping from Ohio with tracking
- Ships same or next business day
- Local pickup available in Jefferson, Ohio
- Professional installation available in Northeast Ohio / Northwest Pennsylvania
Frequently Asked Questions
Does this include the ceiling assembly or thermostat?
No. This is the rooftop unit only. You will need a compatible Dometic ceiling assembly (for example 3314851.000, 3314850.000 or 3317404.000) and a thermostat or control kit.
Will it fit my RV?
It fits the standard 14″ x 14″ roof vent opening used by most RVs. Send us your current unit or ceiling assembly model and we will help confirm.
Is it new?
Yes. It is new OEM surplus and has never been installed. It may show light cosmetic marks from storage.
Can I run it on 30 amp service?
Yes. It draws about 13 amps. On 30 amp service, avoid running other large loads at the same time. A soft start helps with generators.
How does it ship?
By ground as an oversize parcel with tracking, usually the same or next business day. Local pickup in Jefferson, Ohio is also available.
Can you install it?
Yes. We offer professional installation in Northeast Ohio and Northwest Pennsylvania.
Why Buy From Us
We specialize in OEM surplus parts, offering high-quality components at discounted prices. Need multiple? We stock quantity and ship fast from JT Custom Trailers.









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