AO Smith 1 HP 2 Speed 115V 48Y Frame Through Bolt Motor BN37V1 CCW Pump End Single Phase 60 Hz

Power your spa with confidence using the AO Smith BN37V1 1 HP two-speed spa motor. Built for reliability and long life, this 48Y-frame through-bolt motor delivers steady circulating power and adaptable performance for hot tubs and pool systems that demand consistent operation.

Key specifications at a glance

• Frame / mounting: 48Y frame with four thru-bolts on a 5.146" bolt circle; through-bolt pump end mount for sturdy, vibration-resistant installation
• Voltage & phase: 115V, single-phase operation for convenient, common power supply
• Speed and rotation: 2-speed design with 3450 RPM (high) and 1725 RPM (low); rotation is counterclockwise (pump end)
• Horsepower and amps: 1.0 HP total; current draw 10.8A on high speed and 2.8A on low speed
• Capacitor & cooling: Capacitor mounted on top for easy service; thermally protected to guard against overheating
• Insulation & environment: Class B insulation; rated for 40°C ambient conditions
• Shaft & wiring: Threaded shaft for secure couplings; conduit entries positioned at 12 and 3 o’clock for flexible wiring
• Base compatibility: 48/56 base mounting for broad replacement compatibility
• Manufacturer lineage: Reputable AO Smith lineage (also associated with Century/Regal Beloit products) ensuring availability of genuine parts and support

This spa motor is purpose-built for hot tubs and spa pumps, delivering dependable flow and adaptable speed control. The two-speed design means you can circulate water quietly and efficiently at low speed, and ramp up to high speed when you need extra jet power or rapid warm-up. With a 48Y frame and a robust through-bolt mount, it fits a wide range of spa pump housings, making it an ideal replacement for aging or underperforming motors.

Why technicians and homeowners choose this motor

• Accurate replacement fit: 48Y frame, four-bolt pattern, and 5.146" bolt circle align with many spa pump configurations, minimizing downtime during replacement.
• Energy-conscious operation: The 2-speed design lets you run at low speed for circulation and filtration, reducing energy consumption without sacrificing water quality.
• Reliable performance: Thermally protected windings and Class B insulation enhance durability in demanding spa environments.
• Simple serviceability: Top-mounted capacitor and straightforward wiring at 12 and 3 o’clock simplify installation and maintenance.

Ideal for homeowners maintaining hot tub systems, service professionals replacing aging spa motors, or anyone seeking a genuine, ready-to-install replacement from a trusted brand, the BN37V1 is designed to deliver steady, quiet operation with the versatility you need for everyday spa use. Invest in a genuine AO Smith spa motor and keep your hot tub running smoothly, season after season.