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Furnace Parts DIY
Lennox Blower Motors & Capacitors 668-658 replacement part for Lennox furnaces

Furnace Parts DIY

668-658 RUN CAPACITOR 70/10MFD 370/440VAC

$50.00

+5% Tax • Shipping calculated at checkout.

U.S. Duties/Taxes, if applicable, may be due at time of delivery.

Low stock — only 3 left

Pickup available at 75 Blue Mountain St #3, Coquitlam

Usually ready in 24 hours

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Not sure this fits your furnace? Call us — we're happy to help

Product Details

Description

Enhance the performance and reliability of your HVAC system with this high-quality 70/10 MFD dual run capacitor. Engineered for both 370VAC and 440VAC applications, this essential electrical component supports the efficient operation of both your air conditioner compressor and fan motor. If your outdoor unit is humming, failing to start, or the fan is spinning slowly, a faulty capacitor is often the cause. This dual-rated capacitor ensures a smooth startup and consistent power flow, extending the lifespan of your blower motors and cooling system components. Designed for durability and performance, it is a standard replacement part for residential and commercial air conditioning and heat pump units requiring a 70+10 microfarad rating.

Specifications

Type
Dual Run Capacitor
Size
Standard Round Canister
Application
Used in residential and commercial central air conditioning units, heat pumps, and furnace blower motor assemblies to assist in the startup and operation of both the compressor and the condenser fan.
Specifications
Capacitance: 70 + 10 MFD (Microfarads); Voltage Rating: 370V/440VAC; Frequency: 50/60Hz; Shape: Round; Tolerance: +/- 5%; Operating Temperature Range: -40°C to +70°C

Not sure this is the right part?

Our team is happy to help you verify compatibility before you order. We'll confirm it fits your specific furnace model.

1-778-759-9864

Mon–Sat 8AM–5PM PT · Or email parts@bcfurnace.com

Common questions

Is the 668-658 RUN CAPACITOR 70/10MFD 370/440VAC a genuine Lennox part?

Yes. The 668-658 is a genuine Lennox OEM part, sourced from an authorized Lennox parts distributor. This Blower Motors & Capacitor is backed by our 100% compatibility guarantee — if it doesn't fit your furnace, we'll make it right.

How do I know if the 668-658 is compatible with my furnace?

The easiest way is to match the part number (668-658) with your furnace model number. Visit the homepage and enter your model number in the search bar — our system will show all compatible Blower Motors & Capacitors for your specific unit. You can also call our technicians at 1-778-759-9864 for free compatibility verification.

How fast can I get the 668-658 shipped?

Most Blower Motors & Capacitors including the 668-658 ship within 1–2 business days from our warehouse. We ship across Canada and the United States, and worldwide, with tracking on every order. For urgent furnace repairs, contact us at 1-778-759-9864 for expedited shipping options.

Can I pick up the 668-658 at your store?

Yes! Local pickup is available at our Coquitlam, BC location: 75 Blue Mountain St #3. Blower Motors & Capacitors orders are usually ready within 24 hours. Call us at 1-778-759-9864 to confirm the 668-658 is in stock before visiting.

Still not sure this is the right part? Call 1-778-759-9864 and we will check your model number with you.

Where usedFits 218 furnace models