Robust Construction: Engineered to withstand the thermal cycling and vibration typical of high-demand hydronic loops

Precise Pressure Regulation: Includes high and low stage springs to accurately regulate natural gas flow for two-stage heating systems

Washable Design: Durable aluminum construction allows for regular cleaning and reuse

OEM Compatibility: Serves as the factory-authorized replacement for the discontinued 8402-028

York S1-028-09985-700 Sheave Els PW 17895 Robust Construction: Engineered to withstandThe York S1 028 09985 700 Sheave is a precision engineered single groove cast iron pulley designed for heavy duty HVAC blower and motor assemblies. Featuring a 6. 45 inch outside diameter and a 1 inch fixed bore, this component ensures stable torque transmission and maintains proper belt alignment in high static pressure environments. The ASTM A48 class 30 cast iron construction provides superior vibration dampening and heat dissipation compared to