RV Water Heater Thermal Cutoff with ECO Thermostat Assembly Kit, Water Heater Cutoff (4+2) Fit for water heater parts Models #45518A1, GCH6-4E, GH6-8E, G6A-6EStyle: 93866-4About this item 【Package Includes】: You will receive 2 x copper connecting wire, 4 x fuses, Thermal Cut off Kit should be a safety device, a necessity for your RV water heater. Please disconnect the power supply before installation. 【RV Water Heater Compatibility】: For your safety consideration, please check that your part number and model match before buying RV water heater parts. Fit for various water heater models including GLM 21140, Mallory 9-72153, Mercruiser 45518A2, 45518A3, 45518A1, GCH6-4E, GH6-8E, G6A-6E, G6A-7E, G6A-8E, GCH6A-7E, GC6AA-7E, GC6AA-8E, GCH10A-2E, GCH10A-3E, G10-1E, G6A-2E, G6A-3E, G6A-4E, G6A-6E, G6A-7E, G6A-8E, G610-3E, G10-1E, G10-2E, G10-3E, GC6A-7E, GC6AA-7E, GC6AA-8E, GC6AA-9E, GC6AA-10E, GC10-1E, GC10-2E, GC10A-2E, GC10A-3E, GC10A-4E, GCH6-4E, GCH6-6E, GCH6-7E, GCH6A-7E, GCH6A-8E, GCH6A-9E, GCH6A-10E, GCH10A-2E, GCH10A-3E, GCH10A-4E, GH6-3E, GH6-4E, GH6-6E. 【Excellent Fuse】: In the event of a fire, the RV Water Heater Thermostat will stop the gas flow to the burner/water heater by cutting off the fuel to keep you safe. The upgraded water heater thermal switch has a higher threshold and set point on the sensor, providing an extended service life and being less prone to tripping. 【NOTE】: During the repair process, please pay attention to the following two points: 1. Before disconnecting the wires, please label all the wires so that you can distinguish them. 2. When you have finished the repair, please make sure that the operation is correct. We strongly recommend that you follow the YouTube video instructions. If the size of the connector in your water heater differs from the connector we provide, please prepare a separate connector for backup to easily crimp the new connector. Dimensions: 3 x 3.5 x 0.4 inches.