System Reliability: Engineered to resist environmental stress cracking

Broad Compatibility: Direct replacement for Carrier/BDP parts including HH84AA021

This bracket is designed for standard 48-frame motors typically utilized in Johnson Controls (JCI) residential air handlers and furnaces

which provides a 135-ohm proportional control signal to maintain a constant boiler water level by modulating the feed valve

Installing the 0125122 repair kit replaces the entire diaphragm and disc assembly

Trane SHE5389 Sheave R-407C System Reliability: Engineered to resistThe Trane SHE5389 Sheave is a high performance adjustable pitch pulley designed for precise belt drive management in commercial and industrial HVAC equipment. Engineered with a 1 1 8" bore, this component ensures a secure fit on standard motor shafts, facilitating efficient mechanical power transmission between the motor and the blower assembly. As a genuine OEM replacement part, this 1 groove sheave is essential for field tuning fan speed adjustment