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The Supco CD45+5X370R is a dual-section run capacitor rated 45 + 5 MFD at 370 VAC, the common combination for a single-phase compressor plus condenser fan motor in residential and light commercial HVAC. It uses a drawn steel round case, quad blade quick-connect terminals, non-PCB biodegradable synthetic oil and a physical interrupter for safety, with ±5% capacitance tolerance and a -13°F to 185°F operating range. It is a generic-fit replacement rather than a unit-specific part, so it competes with OEM capacitors and other aftermarket dual-run caps on matching specs and terminal layout rather than on extras. Buyers who match MFD, voltage and terminal style get a straightforward drop-in part; those who skip verification risk a wrong fit.
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Lowest price we've seen: $15.37 on Nov 14 at Amazon. Tracked across 1 store since Nov 14.
Owners and techs who use Supco run capacitors generally report they work as replacements when the ratings match, and treat them as a value alternative to OEM parts. Complaints center on fitment and on the need to double-check the label against the old cap.
The Supco CD45+5X370R is a dual-section round run capacitor for motors and compressors that need dual capacitance. It is rated 45 + 5 MFD at 370 VAC and is used in residential and commercial HVAC, air conditioning and refrigeration equipment.
It has a drawn steel case and quad blade quick-connect terminals. The capacitor is filled with non-PCB biodegradable synthetic oil and includes a physical interrupter for added safety. It is made by Supco in Nanchang, Jiangxi, China.
When replacing a capacitor, match the MFD and voltage ratings exactly. Check your equipment's service manual or part label to confirm fitment, and verify your original part number before buying. Disconnect power and safely discharge the old capacitor before removal, and use insulated tools.