Dometic 13,500 BTU RoofTop Air Conditioner Model 8500 with Wireless Thermostat - Part# B3108056NR.421

DometicSKU: B3108056NR.421
Added to catalog: March 11, 2026
Last in stock: Apr 15, 2026

Sale price$696.99
|
In stock (4 units), ready to be shipped
FREE Delivery Estimate April 22 – April 25
1-Hour Cancellation Window

1-Hour Cancellation Window

You'll have 1 hour after placing your order to update your shipping address or cancel completely.

After that, we begin coordinating with our vendors to fulfill your order — at that point, cancellations and address changes usually aren't possible.

If you're unsure about anything, please reach out before ordering or cancel within the window.

The Dometic Model 8500 rooftop air conditioner delivers 13,500 BTU of cooling power to keep your RV comfortable in hot climates. This unit includes a wireless thermostat for convenient temperature control from anywhere inside your coach, making it an ideal upgrade for Class A, Class C, and travel trailer owners seeking reliable roof-mounted cooling.

  • 13,500 BTU cooling capacity for effective temperature management
  • Wireless thermostat for remote temperature adjustment
  • Rooftop mounting design maximizes interior floor space
  • Onyx finish blends seamlessly with most RV roof colors
  • Durable construction engineered for RV travel vibration and weather exposure
  • Quiet operation suitable for campground and boondocking use
Specification Detail
Model 8500
Cooling Capacity 13,500 BTU
Thermostat Type Wireless
Mounting Style Rooftop
Color Onyx
Part Number B3108056NR.421

Frequently Asked Questions

What RV types does this air conditioner fit?
The Model 8500 is designed for Class A motorhomes, Class C motorhomes, travel trailers, and fifth wheels with standard rooftop mounting provisions. Verify your RV's roof opening dimensions before ordering.
Can I install this unit myself?
Installation requires cutting a roof opening and making electrical connections. We recommend professional installation by a certified RV technician to ensure proper sealing and warranty compliance.
How does the wireless thermostat work?
The wireless thermostat communicates with the AC unit via radio frequency, allowing you to set and monitor temperature from inside your RV without running control wires through cabinets and walls.

Why Choose Elkhart RV Parts

We specialize in hard-to-find Dometic replacement parts and ship directly from Elkhart, Indiana—the RV capital of the world. Every unit is genuine OEM Dometic equipment backed by expert support to help you find the exact part your RV needs.

100% Authentic OEM Parts

Factory-Fresh OEM Parts — the same brands installed in new RVs straight from Elkhart. Genuine, name-brand components made to order — never generic, never outdated. Sourced directly from the original RV manufacturers for perfect fit and factory-level quality.

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