York S1-028-04255-700 Sheave 319852-301 High-Strength Internal Support: Features a

High-Strength Internal Support: Features a stainless steel helical spring to maintain structural integrity and prevent bypass during high-velocity gas flow

Does this include the auxiliary end switch

ensuring consistent millivolt output to the pilot valve power unit

this is specifically a liquid line component

York S1-028-04255-700 Sheave 319852-301 High-Strength Internal Support: Features aThe York S1 028 04255 700 Fixed Sheave is a critical drive component engineered for high performance HVAC blower assembly applications. This single groove pulley features a precision machined 3 4 inch bore designed to provide a secure interference fit on drive shafts, minimizing vibration and ensuring consistent airflow performance. Constructed from durable cast iron or heavy duty steel, it maintains structural integrity under the high torque demands