MC 37021MC High Temperature Limit Switch for RV Furnaces

The MC 37021MC is a high-temperature limit switch designed as an aftermarket replacement for Dometic Atwood RV furnace systems. This critical safety component protects your furnace from dangerous overheating by automatically shutting down the system when temperatures exceed safe operating limits.

Key Features:

• 170°F temperature rating (L170-20F specification)
• Activates and deactivates furnace blower assembly
• Automatic shutoff protection prevents overheating damage
• Direct replacement for OEM Atwood/Dometic part number 37021 and 34781
• Made in USA with high-quality materials for long-term durability
• Size designation: 36TXV11

Compatible Furnace Models:

• Atwood 8900-II and 8900-III Series Furnaces
• Atwood 7912-II, 7916-II, 7920-II, 8012-II
• Atwood 8935-AC-II, 8935-AC-III, 8940-AC-II, 8940-AC-III
• Atwood 8935-DC-II, 8935-DC-III, 8940-DC-II, 8940-DC-III
• Atwood 2540 2-Stage models

This limit switch is positioned at critical locations above the heat chamber to monitor temperature and ensure safe operation. When replacing a limit switch, it's essential to use the properly rated component to maintain furnace safety and performance. Easy installation allows for quick replacement without professional assistance.