BC-161 Start Capacitor 161-193 MFD 110-125VAC Pool Pump Motor

Does your pool pump hum but won't start? This BC-161 capacitor is the most common, cost-effective fix for a non-starting motor.

The BC-161 Start Capacitor (161–193 MFD, 110–125 VAC) is a direct replacement start capacitor for pool and spa pump motors. If your pump motor hums but fails to start, a failed start capacitor is the most common culprit — and this is a quick, inexpensive fix that can save you hundreds of dollars compared to a full motor replacement.

🚩 PRO TIP

Before handling a capacitor, always discharge it first — touch a screwdriver with an insulated handle across both terminals to safely release any stored charge. Capacitors can hold voltage even after the pump is unplugged. Always turn off power at the breaker before servicing your pump motor.

PRODUCT FEATURES

• Direct replacement for BC-161 start capacitors in pool and spa pump motors
• Capacitance range: 161–193 MFD for reliable motor starting
• Rated for 110–125 VAC, 60 Hz single-phase motors
• Compact cylindrical form factor: 1-7/16" diameter × 2-3/4" length
• Fixes humming/non-starting pool pump motors
• Compatible with Century, A.O. Smith, and other 56Y frame motors
• Easy DIY installation — no special tools required

TECHNICAL SPECIFICATIONS

• Model / Part Number: BC-161 / BC161
• Capacitance: 161–193 MFD (microfarads)
• Voltage Rating: 110–125 VAC
• Frequency: 60 Hz
• Type: Start Capacitor
• Diameter: 1-7/16" (1.4375")
• Length / Height: 2-3/4" (2.75")
• Cross-References: BC-161, 35-125-1020, 425489, 610807-002, E348072, SPG-101-1914
• Compatible Motors: Century/A.O. Smith USQ1102, K63CXERJ-4776, and other 115V 56Y frame pool pump motors

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