Factory Authorized Parts™ LA22ZA127 HVAC Blower Wheel 11 7/8" Diameter 10 5/8" Width 1/2" Bore

The High-Static Airflow Engine

The LA22ZA127 is a precision-balanced centrifugal blower wheel acting as the primary aerodynamic "engine" for large-capacity Carrier, Bryant, and Payne furnaces and air handlers. As a genuine Factory Authorized Part, this wheel serves as the mechanical heart of your indoor air distribution system, rotating within the blower housing to pull air through return ducts and push it across the heat exchanger or cooling coil. It is specifically designed to support 4-ton and 5-ton residential systems, ensuring the system's "brain" (the motor and control board) can maintain the exact Static Pressure requirements needed for efficient multi-stage heating and cooling. By utilizing a heavy-duty 11 7/8-inch diameter, this wheel maximizes CFM (Cubic Feet per Minute) output while maintaining the whisper-quiet operation these premium HVAC series are known for.

Key Features:

• Genuine OEM Balancing: Engineered under part number LA22ZA127 to be factory-balanced, eliminating the "wobble" and vibration that leads to premature blower motor bearing failure.
• High-Volume Airflow Design: Features deep-curved blades designed to move massive volumes of air through dense, high-efficiency filtration systems and multi-stage evaporator coils.
• Precision 1/2" Bore Hub: Equipped with a reinforced center hub specifically sized for a 1/2-inch motor shaft, providing a slip-free mechanical connection for high-torque motors.
• Corrosion-Resistant Construction: Fabricated from high-grade galvanized steel to withstand the high-humidity environments found in air handler cabinets during the cooling season.
• Acoustically Tuned Dynamics: The specific blade count and pitch are tuned to reduce air turbulence and the "thumping" noises often associated with generic aftermarket wheels.

Product Details:

• Brand: Factory Authorized Parts™ (Carrier/Bryant/Payne)
• Manufacturer: Carrier Corporation / Lau Industries
• Part Number: LA22ZA127
• Weight: 8.6 lbs
• Diameter: 11 7/8 Inches
• Width: 10 5/8 Inches
• Bore Size: 1/2 Inch
• Material: Galvanized Steel
• Rotation: CW (Clockwise) Facing Hub Side

🛠️ HVAC Depot Pro Tip: Practical Installation Advice

"Sand the Shaft First!" Before attempting to slide the new LA22ZA127 onto the motor, use a piece of emery cloth to sand any rust or burs off the blower motor shaft. A smooth surface ensures the hub slides on without force, preventing damage to the motor’s internal bearings. Take a Picture of the wheel's original position inside the blower housing before removal; the wheel must be perfectly centered within the housing "cutoff" to prevent air bypass and vibration. Always tighten the set screw onto the "flat" side of the shaft to prevent the wheel from spinning loose.

Cross-Reference:

• Superseded Numbers: LA22ZA124, LA22ZA118, LA22ZA111
• Legacy Numbers: 310574-753, P251-1210, 326685-701
• Drawing Numbers: 1011833, 1NT01L-4375
• Equivalent Brands: Lau Industries (Carrier Certified Series)

Model Compatibility:

58STA/58STX Series (Suffixes: 110, 135, 155)

310A/310J Series (Suffixes: 066110, 066135, 066155)

59SC2/59SC5 Series (Suffixes: 100S21, 120S24, 140S24)

912S/915S Series (Suffixes: 60100S, 60120S)

PG9M Series (Suffixes: 080, 100, 115)

FA4B/FB4B Series (Suffixes: 042000, 048000, 060000)