Carrier LA21RB327 Wheel

The Carrier LA21RB327 is a precision-engineered OEM inducer blower wheel designed for high-efficiency gas furnaces across the Carrier, Bryant, and Payne families. This squirrel cage wheel features a 3 7/8-inch diameter and a 1 1/8-inch width, specifically balanced to handle the high RPMs required for effective combustion air movement and flue gas exhaust. Built for a 1/4-inch motor shaft, it utilizes a clockwise (CW) rotation (when viewed from the hub end) to ensure proper static pressure is maintained within the inducer housing.

For technicians performing a furnace inducer motor repair, this factory-authorized part serves as the direct replacement for legacy ICP numbers P441-1153 and P441-1235. The wheel is commonly found in specialized units such as the 48HDT006-510 model. Utilizing this replacement HVAC blower wheel ensures that the combustion blower assembly operates without the excessive vibration or resonance that often accompanies generic aftermarket wheels, maintaining the precise airflow necessary for pressure switch activation and safe furnace operation.

• Direct OEM Fit: Exact dimensions of 3 7/8" x 1 1/8" provide a drop-in replacement for specific Carrier and Bryant inducer assembly components.
• Optimized Performance: Factory balancing prevents shaft run-out and premature wear on the inducer motor bearings.
• Corrosion Resistance: Constructed from robust materials designed to withstand the acidic condensate and high-heat environments of gas furnace exhaust.
• Precise Airflow: Engineered blade pitch ensures sufficient draft for the heat exchanger, preventing nuisance pressure switch trips.

• Which models are compatible with the LA21RB327? It is specifically matched for Mfr. Model Number 48HDT006-510 and replaces older part numbers P441-1153/P441-1235.
• How do I determine the rotation? This wheel is designed for CW rotation. Always verify the rotation of your existing blower motor before installation to ensure the wheel matches the housing scroll.
• Does this include the set screw? Most OEM wheels come with a pre-installed or included set screw for securing the hub to the 1/4" flat-shaft motor.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.