Lennox LB-29333BDB – Genuine OEM Replacement Direct Drive Blower Wheel

The Lennox LB-29333BDB (also identified by catalog number 15W76) is a crucial direct drive blower wheel for HVAC systems, measuring 10 inches in diameter by 10 inches in width with a 1/2-inch bore size. This specific blower wheel is a genuine replacement part for various Lennox, Armstrong, Allied, and Ducane furnace and heat pump air handler systems. It is designed specifically for systems requiring counterclockwise (CCW) rotation to efficiently circulate air for both heating and cooling functions.

As a Genuine OEM part, the LB-29333BDB is constructed from durable materials and factory-balanced to ensure quiet, vibration-free operation. This precise balancing is vital for protecting the blower motor's internal bearings and extending the overall life of the entire blower assembly. With a 1/2" bore and a concave hub design, this wheel offers a precision "direct-fit" solution that guarantees perfect mechanical compatibility and peak factory efficiency.

Key Features and Function:

• Feature 1: Optimal Airflow Circulation – Designed with 48 blades to efficiently move high volumes of air through the system's ducts.
• Feature 2: Genuine OEM Reliability/Fitment – Manufactured by Lennox to original factory specifications for a seamless, bolt-on installation.
• Feature 3: Dynamic Balancing – Factory-balanced to reduce system noise and prevent premature wear on motor bearings.
• Feature 4: Counterclockwise Rotation – Specifically engineered for systems requiring CCW airflow direction.

Product Details and Key Specifications:

• Part Number: LB-29333BDB (Replaces 15W76)
• Manufacturer: Lennox / Armstrong / Ducane (Genuine OEM)
• Part Type: Direct Drive Blower Wheel / Squirrel Cage
• Catalog Number: 15W76
• EAN / UPC: 66255134953
• Wheel Diameter: 10 IN (inches)
• Wheel Width: 10 IN (inches)
• Bore Size: 1/2 IN (inches)
• Rotation: Counterclockwise (CCW) as viewed from the hub end
• Number of Blades: 48 Blades
• Shipping Weight: 8.3 lbs (Gross Weight)
• Hub: Concave

🛠️ HVAC Depot Pro Tip: Verify Rotation Direction

It is absolutely critical to confirm your unit requires a Counterclockwise (CCW) blower wheel. Installing a Clockwise (CW) wheel will result in minimal airflow, poor heating/cooling performance, and potential system damage (like a cracked heat exchanger). Always check the motor nameplate or previous part specs before installing this part!

The LB-29333BDB is a direct OEM replacement for the following part numbers:

• OEM Numbers:

  LB-29333BDB, 15W76.

• Aftermarket/Fasco:

  Cross-reference typically points back to Lennox OEM 15W76 for critical balance requirements.

Extensive Model Compatibility List:

Note: Use 'CTRL+F' to search for your specific model:

Lennox, Armstrong, and Ducane Series:

• KCA024S4 series, KCB024S4 series, KDB024H4 series, KGA024S4 series, KGB024S4 series, KHA024S4 series, KHB024H4 series

• LCH036H4 series, LCT036H4 series, LCT048H5, LCT060H5, LCT072H5

• LCX024S5, LCX036S5, LCX048S5, LCX060S5

• LDT024H4, LDT036H4, LDT036H5, LDT048H5, LDT060H5

• LGH036H4 series, LGT036H4 series, LGT048H5, LGT060H5

• LGX024S5, LGX036S5, LGX048S5, LGX060S5, LGX072S5

• LHT024H4, LHT036H4, LHT036H5, LHT048H4, LHT060H4

• LHX024S5, LHX036S5, LHX048S5, LHX060S5

• TCA024S2 series, TGA024S2 series, THA024S2 series

• ZCB036S4, ZCB048S4, ZCD036S5, ZCD048S5, ZGB036S4, ZGB048S4, ZHB036S4, ZHB048S4, ZHD036S5, ZHD048S5