Key Benefits for Technicians: Precise Thermal Protection: Factory-calibrated 150°F cut-out prevents system overheating and protects the heat exchanger from thermal stress

protecting downstream fixtures from premature fatigue

Contractor-Friendly Install: The reversible mounting and 32-inch color-coded leads streamline installation on various damper shaft configurations

System Compatibility: Optimally sized for Reznor equipment featuring 42" to 60" burner configurations

Why is this part specific to the serial number

Browning 3B5V58 Sheave 318423-701 Key Benefits for Technicians: PreciseThe Browning 3B5V58 Sheave is a precision engineered three groove B5V gripbelt sheave designed for demanding power transmission applications. Built for use with B series split taper bushings, this cast iron pulley features a 5. 8" pitch diameter and a 6. 08" outside diameter, ensuring reliable torque transfer and minimized belt slippage. This versatile B5V sheave is engineered to accommodate multiple belt profiles, including 4L, A, AX, 5L, B, BX, 5V,