OEM replacement heating element for Coleman Mach 10 International Series rooftop air conditioners. 240-volt. Adds electric supplemental heat capability. 90-day limited warranty.
The Coleman Mach 45303-4551 is the factory OEM replacement heating element (heat strip) for the Coleman Mach 10 International Series rooftop air conditioner. The Mach 10 International Series operates on 240-volt / 50 Hz power — the standard electrical supply used throughout Europe, Australia, and many other international markets — making this element the correct specification for those systems.
When installed in a heat-ready Coleman Mach 10 International Series unit with a compatible ceiling assembly, the heating element transforms the air conditioner into a dual-purpose climate control system. It functions as an effective supplemental heat source for taking the chill off cooler mornings and evenings without the need to run the RV's main propane furnace. This is a genuine Coleman Mach / Airxcel replacement part, ensuring proper fit, function, and warranty compliance with the original unit.
Engineered for 240-volt / 50 Hz power systems used internationally — the correct voltage for the Mach 10 International Series
Adds electric heating capability to the Mach 10 International rooftop unit for cool weather comfort without the propane furnace
Genuine Coleman Mach / Airxcel factory part — engineered to fit and function identically to the original element
Extends the Mach 10 International unit's usefulness across seasons by adding a heating mode to the existing cooling system
The 45303-4551 is rated for 240 volts and is designed exclusively for the Coleman Mach 10 International Series. It is not compatible with standard North American 120-volt Coleman Mach units. If you have a standard 120V Coleman Mach air conditioner (model numbers beginning with 48XXX, 38XXX, or 45XXX for domestic use), you need a different heat strip part number. Using a 240V element on a 120V system will result in incorrect heating output and potential damage.
The heating element alone does not add heat capability to the system. The Coleman Mach 10 International Series unit must also have a heat-ready ceiling assembly installed to support electric heat operation. If the existing ceiling assembly is not heat-ready, a compatible heat-ready ceiling assembly must be purchased and installed along with this element. Consult the model number on your existing ceiling assembly or contact Coleman Mach to confirm compatibility before ordering.
The Coleman Mach 10 International Series is designed specifically for use on 240V / 50 Hz electrical systems — the standard found in most countries outside North America, including throughout Europe, Australia, and parts of Asia and South America. Key Mach 10 International Series specs for context: • Cooling capacity: 13,500 BTU • Electrical: 240 VAC / 50 Hz, single phase • Compressor draw: 5.8 amps • Evaporator airflow: 275 CFM • Fits standard 14" × 14" roof vent openings • Low-profile shroud height: ~11 inches The 45303-4551 heating element is the correct optional heat accessory for this series.
Included: • (1) 240V Replacement Heating Element Sold Separately (May Be Required): • Heat-ready ceiling assembly (required for heat operation if not already installed) • Thermostat with heat/cool control capability Not Compatible With: • Standard 120V North American Coleman Mach units • Coleman Mach 8 series (use 47233-4551 instead) • Ultra-low profile Mach 8 units
Always verify your unit's full model number on the data plate before ordering. Using the wrong voltage heating element can result in inadequate heating output or equipment damage.
The heating element is a supplemental chill-chaser — it is not designed to replace the main propane furnace in cold weather conditions. It works best for taking the edge off cool mornings and evenings when ambient temperatures are mild.