Rheem Furnace Parts 51-21853-11 Condenser Motor

Condenser Motor from Rheem (model 51-21853-11) delivers dependable 1/3 HP performance for your condenser system, blending efficiency with long-lasting operation. Designed for 208–230V AC, single-phase power, this motor supports reliable cooling cycles in furnace and condenser applications.

Key specs include a 60 Hz frequency, 1075 RPM speed, and a 1.5 A full-load current (FLA) at 208V. The NEMA 48 frame and direct drive design ensure straightforward mounting with a sleeve bearing for quiet, durable operation. Rotation is counterclockwise, with a compact overall length of 6-1/2 inches and a body diameter of 5-5/8 inches, making this motor compatible with many Rheem furnace parts and condenser assemblies.

Optimized for condenser use, this capacitor-run motor uses a 5 μF capacitor rated at 370V and a 1/2 inch shaft diameter by 2-1/16 inch length. Invest in a genuine Rheem condenser motor for consistent reliability and easy replacement in serviceable furnace equipment.

• Power: 1/3 HP
• Voltage & Phase: 208–230V AC, 1-Phase
• Speed: 1075 RPM, single speed
• Frame & Mounting: NEMA 48 frame, direct drive, shell-screw mounting
• Bearings & Rotation: Sleeve bearing, CCW rotation
• Dimensions & Shaft: 6-1/2" L total, 5-5/8" dia, 1/2" shaft x 2-1/16"
• Capacitance: 5 μF at 370V