Common Questions & Answers Is the Y4151 a direct swap for the 46M99

Key Benefits for Contractors: System Compatibility: Exact OEM match for Utica and Dunkirk boilers

This aluminized steel heat exchanger assembly provides the durability required for high-temperature cycles

Rugged Enclosure: Features a non-conductive cover and NEMA 1 rated housing to protect internal screw terminals and scale plates

Carrier LA680571 Blower Wheel 321894-709 Common Questions & Answers IsThe Carrier LA680571 Blower Wheel is a high performance OEM replacement part designed for precision air movement in Carrier, Bryant, and Payne HVAC systems. Engineered by Lau (MPN: 00840393P), this double inlet centrifugal blower wheel features a 1 2" bore for secure shaft mounting. With an outer diameter of 12 3 4" and a width of 12 1 2", it is constructed from heavy duty galvanized steel to ensure dynamic balance and minimize vibration during high