{"product_id":"oem-lennox-run-capacitor-50-mfd-440v-round-y9643","title":"OEM Lennox Run Capacitor 50 MFD 440V Round — Y9643","description":"\u003cp\u003eThe Lennox \u003cstrong\u003eY9643\u003c\/strong\u003e is a genuine OEM run capacitor rated at 50 MFD and 440V in a round, made-in-USA case. It supplies the steady phase-shifted current that keeps your condenser fan motor or compressor running at peak efficiency throughout each cooling cycle. As a direct factory replacement, it meets the exact electrical specifications your Lennox system was designed around.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCommon failure symptoms:\u003c\/strong\u003e When the \u003cstrong\u003eY9643\u003c\/strong\u003e capacitor weakens, you may notice a motor that hums but fails to start, an outdoor fan turning sluggishly, intermittent cooling, higher energy bills, or a breaker that trips under load. A swollen or leaking capacitor top is a clear indicator that replacement is overdue.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhy OEM matters:\u003c\/strong\u003e Generic capacitors often fall outside their labeled microfarad tolerance, causing motors to overheat and fail prematurely. The OEM Lennox \u003cstrong\u003eY9643\u003c\/strong\u003e delivers the exact 50 MFD capacitance, 440V rating, and durable USA-made construction Lennox specified — safeguarding your motors and keeping your equipment running to spec. In stock and ships same day before 3PM CST.\u003c\/p\u003e","brand":"Lennox","offers":[{"title":"Default Title","offer_id":63081125478771,"sku":"LNX-Y9643","price":18.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-round-single-LNX-Y9643.jpg?v=1783763454","url":"https:\/\/nationalhvacparts.com\/products\/oem-lennox-run-capacitor-50-mfd-440v-round-y9643","provider":"National HVAC Parts","version":"1.0","type":"link"}