Lochinvar & A.O. Smith 100233485 Inducer Assembly 318518-761 Featuring a 7 1/2-inch probe

Featuring a 7 1/2-inch probe length and a 12-inch silicon carbide heating element

Engineered for high-duty cycles in commercial and residential HVAC heating systems

the 143-16-021-11 is specifically designed for the 12-inch diaphragm case of the 243-12 series

Failures are often caused by diaphragm wear

Built for 1/2 inch bore motor shafts

Lochinvar & A.O. Smith 100233485 Inducer Assembly 318518-761 Featuring a 7 1/2-inch probeThe Lochinvar & A. O. Smith 100233485 Inducer Assembly is a direct replacement combustion blower designed for high efficiency water heaters and boilers. This critical HVAC draft inducer motor ensures proper venting of flue gases by creating a controlled vacuum within the heat exchanger. Engineered for precise combustion air blower performance, it maintains the correct air to fuel ratio required for safe ignition and optimal thermal efficiency.