The Genie 18004B.S 50–60 MFD 220V Capacitor is a genuine OEM motor start capacitor for select Genie residential garage door openers that use an AC motor. Rated at 50–60 microfarads (MFD) and 220 VAC, it provides the phase shift and starting torque the opener motor needs to begin turning under load. A failing capacitor can cause humming, stalling, or intermittent operation; replacing it with the correct Genie 18004B.S restores reliable start performance. Use this part only on models that specifically call for 50–60 MFD and 220V on the original component or in the opener’s documentation.
This two‑terminal, non‑polarized AC motor start capacitor is a direct replacement part and typically connects via spade terminals inside the opener’s housing. Orientation is not polarity‑sensitive, but you must follow the wiring diagram for your exact model. Match the part number along with the microfarad and voltage ratings before installation; do not substitute different values unless specified by Genie. For safety, disconnect power to the garage door opener, verify it is de‑energized, and discharge the capacitor before handling or replacement. Ideal for buyers searching for a Genie capacitor replacement, motor start capacitor, or 50–60 MFD 220V garage door opener part, the 18004B.S supports dependable operation when used as directed on compatible Genie units.