Dometic FreshJet 3 RV Air Conditioner | 13.5K BTU | Black | 14"×14"

Replace your worn rooftop AC with the Dometic FreshJet 3 Series 13,500 BTU RV Air Conditioner — Black (Part #FJX3473MBKAS / 9600028599). High-performance 13,500 BTU cooling, compact design that fits any 14"×14" opening, and low-noise operation up to 4dB quieter than previous models. Direct replacement path from Brisk II (B59516), Brisk I, Duo-Therm, and other legacy Dometic ACs.

Prefer White Instead?

Also available in white as the Dometic FreshJet 3 13.5K BTU RV AC — White (FJX3473MWHAS). Same construction and features — white finish for traditional exterior color schemes.

Need More Cooling? See the 15K BTU Variant

For higher cooling capacity, see the Dometic FreshJet 3 15K BTU (FJX3573MWHAS) — same 14"×14" fitment with 15,000 BTU output. Note: 15K variant uses R32 refrigerant (13.5K uses R410A).

⚠️ Mechanical Unit — External Control Board Required

This FreshJet 3 is a mechanical model — it does NOT come with a pre-installed control board. You'll need an external control component to operate it:

• If your existing installation has a working thermostat setup — you can reuse it
• For new installations OR if the existing control has also failed — a compatible control kit and/or thermostat is required (sold separately)

Chat with us or give us a text/call if you need help identifying the right control components for your setup.

13,500 BTU Cooling Power

• 13,500 BTU cooling capacity — high-performance comfort for most RV coach sizes
• Energy-efficient operation with easy-to-use controls
• Integrated air filter for cleaner, more convenient cooling

Compact Design — Fits 14" × 14" Opening

Fits any 14" × 14" roof opening — direct replacement path for standard RV rooftop AC installations without cutting new mounting holes.

⭐ Low-Noise Operation

Operates up to 4dB quieter than previous FreshJet models — meaningful improvement for anyone frustrated with the noise level of older RV rooftop ACs.

Ducted OR Non-Ducted Installation

Versatile installation flexibility — works with both ducted and non-ducted systems. Suits your specific RV configuration.

Replaces Multiple Older Models

Direct replacement path for:

• Dometic Brisk II (B59516)
• Dometic Brisk I models
• Dometic Duo-Therm models
• Various older Dometic AC units using the standard 14"×14" opening

Verify roof opening dimensions and control system compatibility before ordering.

⚠️ Does NOT Work with Heat Strip

Important compatibility note: this FreshJet 3 does NOT support heat strip installations. If your existing setup includes a heat strip, this unit is not the correct replacement — the heat strip will not function with this AC.

⭐ Pre-Installed Roof Compression Gasket

Standout feature: comes with a pre-installed roof compression gasket on the base of the unit. This gasket provides the proper seal between the AC and RV roof — no additional sealant or roof gasket required. Simplifies installation and reduces the risk of installer-caused leaks.

Companion Components — Air Distribution Box + Thermostat

You may need to replace the air distribution box and/or thermostat control kit at the same time. We carry compatible options — chat or call for guidance if you need help selecting the right components.

⭐ SHIPS FREE via Freight to the 48 States

Free freight shipping to the 48 contiguous states.

⚠️ Freight Shipping Note

This is a large-format freight item. Because of the shipping method, this item may not be eligible for standard return processing — inspect thoroughly upon delivery and note any damage on the delivery receipt before signing.

Cross-Reference Part Numbers

• Manufacturer Part: FJX3473MBKAS
• SKU: 9600028599

Black Finish

⚠️ Professional Installation Required

Installation involves rooftop mounting, weather sealing, 120V AC electrical wiring, and integration with your air distribution box and thermostat system. Installation should be performed by a qualified RV service technician.

2-Year Manufacturer Warranty

Genuine Dometic OEM

Key Features

• Genuine Dometic OEM FreshJet 3 Series RV rooftop air conditioner
• Part number: FJX3473MBKAS (SKU 9600028599)
• 13,500 BTU cooling capacity
• White color sibling available: FJX3473MWHAS
• Fits standard 14" × 14" roof opening
• Up to 4dB quieter than previous FreshJet models
• Ducted OR non-ducted installation
• Mechanical unit — requires external control board (sold separately)
• Does NOT support heat strip
• Pre-installed roof compression gasket — no additional sealant needed
• Integrated air filter
• Replaces Brisk II (B59516), Brisk I, Duo-Therm, and older Dometic AC units
• Black finish
• SHIPS FREE via freight to 48 states
  
• Backed by 2-year manufacturer warranty

Specifications

• Brand: Dometic
• Series: FreshJet 3
• Part Number: FJX3473MBKAS
• SKU: 9600028599
• Type: RV Rooftop Air Conditioner
• Cooling Capacity: 13,500 BTU
• Configuration: Ducted OR Non-Ducted
• Roof Opening Fitment: 14" × 14"
• Noise Reduction: Up to 4dB quieter than previous FreshJet
• Control Type: Mechanical (external control board required)
• Heat Strip Support: NO
• Roof Compression Gasket: Pre-installed
• Air Filter: Integrated
• Replaces: Dometic Brisk II (B59516), Brisk I, Duo-Therm, older Dometic AC units
• Color: Black
• White Color Sibling: Dometic FJX3473MWHAS
• Shipping: Ships FREE via freight to 48 states
  
• Warranty: 2-year manufacturer warranty