RV Water Heater Cutoff Kit with ECO Thermostat This replacement cutoff kit restores reliable temperature control in compatible RV and marine water heater systems. It combines a built in ECO thermostat for steady regulation with a cutoff mechanism that limits excessive temperatures. Key benefits Restores proper temperature control: replaces worn or faulty cutoff components to consistent water temperature. Stable operation: the integrated ECO thermostat reduces temperature fluctuations during use for more comfortable showers. Reduces risk of scalding: the cutoff function limits excessively temperatures to lower the chance of scalding. Easy compatibility check: matches OE part numbers 91447 and 93866 for straightforward verification. Product highlights Function: cutoff kit with ECO thermostat for automatic temperature regulation and temperature limiting. Compatibility: designed to parts from Atwood water heaters and is also compatible with parts from Mallory and Mercruiser where those OE numbers apply. Performance: provides stable temperature control and reliable cutoff action to prevent temperature spikes. Replacement use: intended as a direct replacement for systems using OE part numbers 91447 and 93866. Typical applications RV maintenance: a failed cutoff assembly during routine water heater service to restore safe, stable temperature control. Seasonal check or : swap in the kit when troubleshooting inconsistent water temperatures or when the thermostat no longer responds. Marine or mobile installations: use as a replacement part where the listed OE numbers are specified for Mallory or Mercruiser compatible units. Notes Verify compatibility by checking your existing part number against OE 91447 or 93866 before . The kit is intended to the cutoff and thermostat components only; refer to your equipment manual for installation guidance and any additional parts needed.