The Mach 8 Plus is Coleman Mach's premium ultra-low-profile rooftop air conditioner, engineered to deliver serious cooling power without the tall, boxy profile that creates wind resistance at highway speeds. A dual-motor design keeps airflow -- and BTUs -- consistent whether you're running on high or low speed, so you're not sacrificing comfort to save a few amps.
Most high-BTU rooftop units are tall and boxy. The Mach 8 Plus changes that equation with an ultra-low-profile shroud that reduces aerodynamic drag at highway speeds, which translates directly to better fuel economy on long hauls. If you're a full-timer or frequent traveler, that difference adds up fast.
What sets the Mach 8 Plus apart from single-motor competitors is its dual-motor design. Many RV air conditioners cut fan speed -- and effective cooling capacity -- when you drop from high to low. The Mach 8 Plus uses two dedicated motors so both speed settings deliver the full 15,000 BTU rating. You get quieter operation on low without giving up cooling performance.
The textured black finish (part number 37204-079) is a factory color option designed for rigs with black or dark-colored roofs, or for owners who simply prefer a blacked-out roofline look over the standard polar white.
Reduced height shroud cuts wind drag at highway speeds for measurably better fuel efficiency compared to standard-height units.
Two motors -- one for the compressor fan, one for the blower -- deliver full 15,000 BTU output on both high and low speed settings.
Handles large Class A, C, and fifth-wheel interiors up to approximately 400-450 sq ft when paired with proper insulation.
Factory-molded textured black ABS shroud -- not painted -- for durability and UV resistance on dark-roofed rigs.
The Mach 8 Plus profile sits lower than standard Coleman Mach units, reducing the frontal area exposed to highway wind. For Class A and Class C motorhome owners who travel frequently, a lower-drag rooftop AC can recover fuel costs over a full season of driving. This is a real engineering difference, not a marketing claim -- Coleman Mach publishes CFD (computational fluid dynamics) data supporting the profile design.
The 37204-079 rooftop unit (condenser/evaporator assembly) is designed to mate with Coleman Mach's standard 14-inch x 14-inch RV roof opening. It is compatible with both ducted ceiling assemblies (air distributed through ceiling ducts) and non-ducted ceiling assemblies (air discharged directly from the ceiling unit). The ceiling assembly/air distribution kit is sold separately -- confirm your existing ceiling assembly is compatible before ordering.
This listing is for the rooftop condenser/evaporator unit only. A matching Coleman Mach ceiling assembly (air distribution box) and a compatible thermostat or control board are required for a complete, functional system. If you are replacing an existing Mach 8 or Mach 8 Plus, your existing ceiling assembly and thermostat may be reusable -- verify compatibility by comparing the ceiling assembly part number.