US Seals BC-108 Motor Start Capacitor – 108–130 MFD, 250VAC
Restore Pump Performance with a Reliable Motor Start Capacitor
When your pool pump motor hums but won’t start, the culprit is often a failed capacitor. The US Seals BC-108 Motor Start Capacitor provides the exact electrical boost your motor needs to start up reliably and run efficiently. Rated at 108–130 microfarads (MFD) and 250VAC, this capacitor is built for tough pool and spa environments, ensuring long-lasting performance at an affordable price.
US Seals has been a trusted name in the pool industry for decades, delivering high-quality replacement parts engineered to meet or exceed OEM standards. Whether you’re a homeowner tackling a quick repair or a professional technician servicing multiple accounts, this capacitor makes restoring pump reliability quick and simple.
Why Replace Your Motor Start Capacitor?
Pool and spa motors require an extra jolt of electricity at startup. That’s what a start capacitor provides. Over time, heat, voltage spikes, and heavy use degrade capacitors, causing pump motors to:
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Hum but not start
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Trip circuit breakers
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Start slowly or inconsistently
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Overheat and fail prematurely
Replacing a worn capacitor is an inexpensive, preventative repair that protects your motor and keeps your pool circulation system running smoothly.
Features and Benefits of the US Seals BC-108
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Exact Electrical Rating – 108–130 MFD, 250VAC for reliable performance.
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OEM-Grade Quality – Meets or exceeds original equipment specifications.
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Durable Construction – Built to withstand heat and outdoor pool conditions.
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Cost-Effective Solution – Prevents expensive pump replacements.
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Compact & Easy to Install – Standard cylindrical design fits common pump motors.
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Versatile Applications – Works with many pool pumps, spa motors, and blowers.
Compatible With
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Many common pool and spa pump motors using 108–130 MFD capacitors
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Common brands include AO Smith, Century, Emerson, Franklin Electric, and others
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Ideal for both residential and commercial pool systems
⚠️ Always check your motor’s existing capacitor rating before replacement. Voltage and microfarad values must match for safe operation.
How to Replace a Start Capacitor
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Turn Off Power – Always disconnect power at the breaker.
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Access Motor Housing – Remove end cover to expose capacitor.
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Discharge Capacitor – Use an insulated screwdriver to safely discharge stored energy.
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Remove Old Capacitor – Disconnect wires and note connections.
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Install New Capacitor – Connect wires to the same terminals on the US Seals BC-108.
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Reassemble & Test – Close motor housing, restore power, and test motor startup.
⚠️ Safety Tip: If you’re unfamiliar with electrical repairs, hire a qualified pool technician to install your capacitor.
Long-Term Value
At only $19.95, the BC-108 start capacitor can save you hundreds of dollars by preventing premature motor failure and unnecessary pump replacements. By restoring strong, reliable startups, it helps extend motor life and maintain consistent water circulation for clean, safe swimming.
Key Features at a Glance
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Manufacturer: US Seals
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Model: BC-108
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Rating: 108–130 MFD, 250VAC
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Application: Pool & spa motor start capacitor
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Durable, long-lasting design
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Affordable replacement for OEM parts
Why Buy From Benchmark Pool Supply?
At Benchmark Pool Supply, we know that small parts can make a big difference. That’s why we carry genuine US Seals replacement parts—trusted by pool professionals and DIY owners alike.
When you shop with us, you’ll enjoy:
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OEM-quality replacement parts
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Competitive pricing on essentials
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Fast, reliable shipping
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Expert advice on pool pump repairs
We make it simple to keep your pool equipment running like new.
FAQs About the US Seals BC-108 Capacitor
Q: How do I know if my capacitor is bad?
A: Common signs include a humming motor that won’t start, frequent breaker trips, or visible swelling/leaking on the capacitor casing.
Q: Can I use a capacitor with a higher voltage rating?
A: Yes. It’s safe to use a capacitor with a higher voltage (e.g., 370VAC), but microfarad ratings must match your motor’s requirements.
Q: Is this a run capacitor or a start capacitor?
A: The BC-108 is a motor start capacitor. Some motors also use a run capacitor, so confirm before ordering.
Q: How long does a capacitor last?
A: Typically 3–5 years, depending on heat exposure, electrical surges, and usage.
Q: Will this fit my spa blower?
A: Yes, if your blower motor requires a 108–130 MFD, 250VAC start capacitor. Always check your existing capacitor label.
