Rheem Furnace Parts 70-21858-09 Heat Pump Fan Blade

Heat Pump Fan Blade is a durable Rheem furnace part designed to replace worn blades and restore efficient airflow. This 20-inch diameter replacement fits heat pump systems and is compatible with models RPKA, RPKB, SPKB, and RPLA.

Key specifications include a 1/2 inch bore, counterclockwise rotation, and a 21-degree pitch, with the hub located on the inlet side. The blade assembly features two blades for steady airflow and balanced motor load, built to match OEM dimensions for reliable fit.

Engineered for balance and durability, this Heat Pump Fan Blade minimizes vibration and helps extend service life of your HVAC system. The two-blade configuration and precise geometry support efficient airflow and smooth operation across cooling and heating cycles.

Designed for Rheem furnace and heat pump installations, this replacement part fits in RPKA, RPKB, SPKB, or RPLA units and is suitable for professional installers and skilled DIYers replacing worn components.

• Size: 20" diameter
• Bore: 1/2"
• Rotation: Counterclockwise
• Pitch: 21°
• Blades: 2
• Hub: Inlet side
• Compatibility: RPKA, RPKB, SPKB, RPLA